このページをあなたの言語で

English

فارسی

العربية

Deutsch

Español

Français

한국어

Português

中文

हिन्दी

B2 noun #10,000 よく出る 10分で読める

bromine

上位10,000

練習する例文メモとヒント bromine 30秒で

解説 bromine in your Level:

Bromine is a special kind of liquid. It is not water, but it is a liquid you might find in a science lab. It is a dark red color. It has a very strong and bad smell. Most things are either solid like a rock or gas like air, but bromine is one of the few that is liquid. You might hear about it if you have a hot tub or a small pool at home because it helps keep the water clean. It kills tiny germs so people don't get sick. You should never touch it or smell it directly because it can hurt your skin and your nose. In a simple way, think of it as a red, smelly liquid that cleans water.

無料登録して完全な解説を読む

Bromine is a chemical element. In the world of science, everything is made of elements, and bromine is number 35. It is part of a group called 'halogens.' Other halogens are chlorine and iodine. Bromine is interesting because it is a reddish-brown liquid at room temperature. It turns into a gas very easily, and this gas is also red and smells very strong. People use bromine to keep swimming pools and spas clean. It works like chlorine but is better for hot water. It is also used in things that stop fires from spreading, like the plastic in your computer. You won't see it every day, but it is very useful for safety and cleaning.

無料登録して完全な解説を読む

Bromine is a chemical element that is quite unique because it is one of the only two elements that are liquid at standard room temperature. It has a deep reddish-brown color and a very sharp, unpleasant odor. In fact, its name comes from a Greek word meaning 'stench.' You will often find bromine used in industrial settings. For example, it is used to make flame retardants, which are chemicals added to furniture and electronics to prevent them from catching fire easily. It is also a popular choice for disinfecting hot tubs because it stays active in warm water longer than chlorine does. When using bromine, safety is very important because it is corrosive and the vapors can be harmful to breathe.

無料登録して完全な解説を読む

Bromine is a heavy, volatile, mobile, dangerous reddish-brown liquid nonmetallic element. At the B2 level, you should understand its role as a member of the halogen family (Group 17) and its chemical properties, such as its high reactivity. It is primarily extracted from brine pools in places like the Dead Sea or underground wells. Its applications are diverse: from being a key component in fire safety (brominated flame retardants) to its use in the pharmaceutical industry for creating various medications. You might also encounter it in discussions about environmental chemistry, particularly regarding its impact on the ozone layer and the move towards 'halogen-free' products in manufacturing to reduce environmental toxicity. It is essential to distinguish between the element bromine and its ion, bromide.

Bromine is a p-block element and a halogen that exhibits complex chemical behavior. In a C1 context, you might discuss its high electronegativity and how it acts as a powerful oxidizing agent. Its physical properties—specifically its existence as a diatomic liquid (Br2) with a significant vapor pressure—make it a challenging substance to handle in laboratory and industrial environments. Its historical significance in photography (via silver bromide) and its modern-day controversy in environmental science (due to the persistence of polybrominated diphenyl ethers or PBDEs) provide rich ground for technical discussion. Mastery of the term involves understanding its role in organic synthesis, such as in electrophilic addition reactions across alkenes, and its utility in industrial mercury sequestration from flue gases.

無料登録して完全な解説を読む

At the C2 level, bromine is understood within the intricate frameworks of molecular orbital theory and advanced synthetic chemistry. It is recognized for its role in the formation of bromonium ion intermediates and its high selectivity in radical halogenation compared to chlorine. Discussions might delve into the thermodynamics of its phase transitions or its role in atmospheric 'bromine explosions'—photochemical catalytic cycles that lead to sudden ozone depletion in polar regions. One would also be expected to navigate the nuances of its industrial ecology, including the life-cycle analysis of organobromine compounds and the stringent regulatory landscapes (like REACH in the EU) that govern their use. The term 'bromine' here serves as a gateway to discussing complex topics like kinetic isotope effects and the specificities of halogen bonding in crystal engineering.

無料登録して完全な解説を読む

練習する例文メモとヒント

bromine 30秒で

Bromine is a reddish-brown liquid element known for its strong smell and high reactivity within the halogen group.
It is uniquely liquid at room temperature and is widely used in flame retardants and pool sanitation.
The element is toxic and corrosive, requiring careful handling in industrial and laboratory settings.
Bromine plays a significant role in environmental chemistry, particularly concerning ozone depletion and industrial safety.

Bromine is a fascinating and chemically aggressive element that occupies a unique position in the periodic table. As the only nonmetallic element that is a liquid under standard conditions, bromine presents itself as a dense, dark reddish-brown fluid that evaporates easily at room temperature into a choking, similarly colored gas. The name itself is derived from the Greek word 'bromos,' which translates to 'stench,' a fitting description for its sharp, irritating odor that resembles a mix of chlorine and sulfur. In a scientific context, bromine is a member of the halogen group, alongside fluorine, chlorine, iodine, and astatine. This group is known for being highly reactive, particularly with alkali metals to form salts.

Chemical Classification: Bromine is a halogen, specifically atomic number 35, characterized by its high electronegativity and reactivity.

The laboratory technician carefully decanted the liquid bromine into a specialized glass ampoule to prevent the escape of its toxic vapors.

People use bromine in various industrial and domestic applications. Historically, it was a cornerstone of the photography industry, where silver bromide was used to create light-sensitive emulsions on film. Today, its primary use is in the production of organobromine compounds, which serve as highly effective flame retardants in electronics, textiles, and furniture. By interfering with the combustion process, bromine atoms help prevent small sparks from turning into full-scale fires. In the realm of sanitation, bromine is a popular alternative to chlorine for disinfecting swimming pools and hot tubs. It is particularly valued in indoor spas because it remains stable at higher temperatures and its byproduct, bromamines, do not produce the same harsh 'pool smell' or eye irritation as chloramines.

Industrial Utility: Bromine is essential for manufacturing drilling fluids, pesticides, and certain pharmaceutical intermediates.

Due to its efficacy as a disinfectant, many high-end spas prefer bromine over chlorine for maintaining water purity.

Furthermore, bromine plays a role in the automotive industry and environmental protection. It is used in the synthesis of certain dyes and in mercury emission control systems for coal-fired power plants. In these systems, bromine is added to the coal or injected into the flue gas to oxidize elemental mercury, making it easier to capture and remove.

The dark fumes of bromine filled the flask, indicating a successful oxidation reaction.

Biological Presence: While not as abundant as chlorine, bromine is found in trace amounts in the human body and is essential for certain basement membrane developments.

Seaweed naturally accumulates bromine from the surrounding ocean water, which can then be harvested for industrial use.

Environmental scientists monitor the levels of bromine in the atmosphere to study its impact on the ozone layer.

Using the word 'bromine' correctly requires an understanding of its role as a noun representing a specific chemical entity. In most contexts, it is treated as an uncountable noun, similar to 'water' or 'oxygen,' though you might refer to 'bromine atoms' or 'bromine compounds' when being more specific. When discussing its physical properties, you will often find it paired with adjectives describing its color or state, such as 'liquid bromine' or 'reddish-brown bromine.'

Scientific Precision: Use 'bromine' when referring to the element itself (Br2), and 'bromide' when referring to its ionic form (Br-).

The chemist explained that bromine is highly reactive because it needs only one electron to complete its outer shell.

In industrial or maintenance contexts, 'bromine' is frequently used as a modifier. For instance, you might hear about 'bromine tablets' for a pool or 'bromine levels' in a test kit. In these cases, the word functions as a noun adjunct. When writing about environmental issues, the word is often linked to 'flame retardants' or 'ozone depletion.'

To maintain the spa, you must check the bromine concentration at least twice a week.

Action Verbs: Bromine 'reacts,' 'oxidizes,' 'evaporates,' 'disinfects,' and 'corrodes.'

If bromine comes into contact with aluminum, a violent reaction occurs, producing bright sparks.

In academic writing, 'bromine' is often the subject of sentences describing chemical trends. For example, 'Bromine has a higher boiling point than chlorine but a lower one than iodine.' This type of comparative usage is common in chemistry textbooks. In more casual conversation, you might hear it in the context of health and safety, such as 'The smell of bromine was overwhelming in the factory.'

The fire marshal investigated whether the curtains had been treated with bromine-based flame retardants.

Safety Context: Sentences involving bromine often include warnings about ventilation and protective gear.

Exposure to high levels of bromine gas can lead to immediate respiratory distress.

Scientists are researching how bromine isotopes can be used to date ancient groundwater samples.

You are most likely to encounter the word 'bromine' in specialized environments rather than in everyday small talk. One of the most common places is at a pool supply store or when talking to a pool maintenance professional. Because bromine is a staple for hot tub sanitation, owners of spas frequently discuss 'bromine floaters' or 'bromine levels.' In this setting, the word is associated with cleanliness and water safety.

Pool and Spa Industry: Bromine is the preferred sanitizer for warm water environments like Jacuzzis.

'I need to buy more bromine tablets for the hot tub before the weekend party,' she told her husband.

Another significant context is the classroom, specifically in high school or university chemistry labs. Students learn about bromine when studying the periodic table, chemical bonding, or the halogen family. It is often used in the 'bromine test' to detect unsaturation (double or triple bonds) in organic molecules, where the disappearance of the reddish-brown color indicates a reaction.

In the lab, the teacher demonstrated how bromine water turns clear when mixed with an alkene.

In the manufacturing and technology sectors, bromine is a common topic regarding safety standards. Discussions about 'halogen-free' electronics are essentially discussions about removing bromine and chlorine from circuit boards and plastic casings to reduce toxic smoke in the event of a fire. Environmental news reports might also mention bromine when discussing the health of the ozone layer or the impact of industrial runoff on marine life.

Environmental Science: Bromine atoms are highly efficient at destroying ozone molecules in the upper atmosphere.

The new regulations aim to phase out the use of certain bromine compounds that linger in the environment.

Lastly, you might encounter 'bromine' in the pharmaceutical or medical field, though often as part of a compound name. Historically, 'bromides' were used as sedatives, leading to the word 'bromide' becoming a slang term for a boring or cliché remark. While bromine itself isn't used as a sedative today, its derivatives are vital in synthesizing modern medications.

The pharmaceutical company uses bromine as a key reagent in the production of several anti-inflammatory drugs.

One of the most frequent mistakes people make is confusing 'bromine' with 'bromide.' While they are chemically related, they are not interchangeable in speech or writing. Bromine refers to the pure element (Br2), which is a toxic, reddish-brown liquid. Bromide, on the other hand, refers to the ion (Br-) or a compound containing that ion, like sodium bromide. You would say 'the water contains bromide salts,' but 'I added bromine to the pool.'

Bromine vs. Bromide: Bromine is the element; bromide is the ion found in salts and medicines.

Incorrect: 'The doctor prescribed bromine for his anxiety.' Correct: 'The doctor prescribed a bromide for his anxiety.'

Another common error involves spelling and pronunciation. Some learners might confuse it with 'boron' because both start with 'B' and are elements. However, boron is a solid metalloid, while bromine is a liquid halogen. In terms of pronunciation, ensure the 'o' is long (/ˈbroʊmiːn/) and the 'ine' sounds like 'mean.' Some might incorrectly pronounce the ending like 'mine' (as in 'my property') or 'min' (as in 'vitamin').

Learners often misspell bromine as 'bromin' or 'broime,' missing the silent 'e' or swapping letters.

Misunderstanding the physical state is also common. Because many common elements are either solids (like iron) or gases (like oxygen), students often forget that bromine is a liquid. They might mistakenly refer to 'bromine gas' as the standard form, whereas the gas only forms when the liquid evaporates.

State of Matter: Bromine is a liquid at room temperature, not a gas or a solid.

The textbook corrected the student who thought bromine was a gas like its neighbor chlorine.

Finally, in a metaphorical sense, people sometimes use the word 'bromide' to mean a cliché, but they rarely use 'bromine' this way. Using 'bromine' to describe a boring person would be a linguistic error, as the metaphorical use is strictly reserved for the salt form, 'bromide.'

He offered a tired bromide about hard work, not a 'bromine.'

When discussing bromine, it is helpful to compare it to other members of the halogen family. Chlorine is the most common alternative, especially in the context of water treatment. While both are effective disinfectants, they have different chemical profiles and side effects. Chlorine is a gas at room temperature and is generally cheaper, but it can be more irritating to the skin and eyes than bromine.

Bromine vs. Chlorine: Bromine is better for hot water; Chlorine is better for large, outdoor cold-water pools.

The technician recommended switching from chlorine to bromine to reduce the chemical odor in the indoor pool area.

Iodine is another similar element, often used as an antiseptic or in nutrition. Like bromine, it is a halogen, but it is a solid at room temperature and has a distinct purple vapor when heated. In some industrial processes, iodine can be used as a substitute for bromine, though it is usually more expensive. Fluorine, the lightest halogen, is far more reactive and dangerous than bromine, and is rarely used in the same contexts.

While iodine is used to clean wounds, bromine is more commonly used to treat large volumes of water.

In the context of flame retardants, 'organophosphates' are a common alternative to 'organobromines.' As regulations tighten on bromine-based chemicals due to environmental concerns, many manufacturers are switching to phosphorus-based alternatives. These alternatives perform a similar function but have different environmental degradation profiles.

Chemical Alternatives: Organophosphates and mineral fillers (like aluminum hydroxide) are often used to replace bromine-based flame retardants.

The company announced a shift away from bromine compounds toward more eco-friendly phosphorus alternatives.

Scientists compared the reactivity of bromine and fluorine in the synthesis of new polymers.

In high-temperature applications, bromine remains effective where chlorine might quickly dissipate.

How Formal Is It?

豆知識

When Balard first discovered it, he wanted to call it 'muride', but the French Academy of Sciences insisted on 'bromine' because of its terrible smell.

発音ガイド

UK /ˈbrəʊmiːn/

US /ˈbroʊmiːn/

Primary stress is on the first syllable: BRO-mine.

韻が合う語

Mean Green Screen Spleen Keen Bean Marine Machine

よくある間違い

Pronouncing the last syllable like 'mine' (as in 'my gold mine'). It should be 'meen'.
Confusing the pronunciation with 'boron'.
Shortening the 'o' to sound like 'brom' (rhyming with 'mom').
Adding an extra syllable, like 'bro-mi-ne'.
Pronouncing the 'b' too softly.

難易度

読解 4/5

Common in scientific and technical texts.

ライティング 5/5

Spelling and distinguishing from 'bromide' can be tricky.

スピーキング 5/5

Pronunciation of the '-ine' suffix is a common pitfall.

リスニング 4/5

Easily recognized if the 'bro-' prefix is heard clearly.

次に学ぶべきこと

前提知識

Element Liquid Chemical Chlorine Reaction

次に学ぶ

Halogen Oxidation Covalent Isotope Catalyst

上級

Electronegativity Diatomic Bromination Regioselectivity Photolysis

知っておくべき文法

Uncountable Nouns

We don't say 'three bromines'; we say 'three grams of bromine'.

Noun Adjuncts

In 'bromine tablets,' bromine acts like an adjective to describe the tablets.

Passive Voice in Science

Bromine is extracted from seawater (focus on the element, not the person).

Comparative Adjectives

Bromine is denser than water.

Conditional Sentences (Safety)

If you inhale bromine, you should seek medical help.

無料登録して完全な解説を読む

レベル別の例文

Bromine is red.

Bromine est rouge.

Subject + Verb + Adjective.

The bromine smells bad.

Le brome sent mauvais.

Definite article 'The' used with an uncountable noun.

Is bromine a liquid?

Le brome est-il un liquide ?

Inverted sentence structure for a question.

I see the bromine.

Je vois le brome.

Simple transitive verb 'see'.

Bromine cleans the water.

Le brome nettoie l'eau.

Third-person singular verb 'cleans'.

It is not bromine.

Ce n'est pas du brome.

Negative sentence using 'not'.

Put bromine in the spa.

Mettez du brome dans le spa.

Imperative sentence.

The bromine is in the bottle.

Le brome est dans la bouteille.

Prepositional phrase 'in the bottle'.

Bromine is a member of the halogen family.

Le brome est un membre de la famille des halogènes.

Noun phrase 'member of the halogen family'.

You use bromine to keep the hot tub clean.

Vous utilisez du brome pour garder le jacuzzi propre.

Infinitive of purpose 'to keep'.

Bromine is safer for hot water than chlorine.

Le brome est plus sûr pour l'eau chaude que le chlore.

Comparative adjective 'safer'.

The gas from bromine is very dangerous.

Le gaz du brome est très dangereux.

Compound subject 'The gas from bromine'.

Scientists find bromine in the ocean.

Les scientifiques trouvent du brome dans l'océan.

Present simple for general facts.

Don't touch the liquid bromine.

Ne touchez pas au brome liquide.

Negative imperative.

Bromine tablets are easy to use.

Les pastilles de brome sont faciles à utiliser.

Adjective phrase 'easy to use'.

The color of bromine is reddish-brown.

La couleur du brome est brun-rouge.

Genitive construction 'The color of bromine'.

Bromine was discovered in the early 19th century.

Le brome a été découvert au début du 19ème siècle.

Passive voice 'was discovered'.

If you spill bromine, you must clear the room immediately.

Si vous renversez du brome, vous devez évacuer la pièce immédiatement.

First conditional structure.

Bromine is primarily used to produce flame retardants.

Le brome est principalement utilisé pour produire des ignifugeants.

Adverb 'primarily' modifying the verb.

The smell of bromine is much stronger than that of iodine.

L'odeur du brome est bien plus forte que celle de l'iode.

Comparison using 'that of' to avoid repetition.

Many people prefer bromine because it has no strong odor in pools.

Beaucoup de gens préfèrent le brome car il n'a pas d'odeur forte dans les piscines.

Conjunction 'because' introducing a reason.

Bromine evaporates quickly when exposed to the air.

Le brome s'évapore rapidement lorsqu'il est exposé à l'air.

Adverb 'quickly' and past participle 'exposed'.

The chemist added bromine to the solution to test for alkenes.

Le chimiste a ajouté du brome à la solution pour tester les alcènes.

Past simple tense for a specific action.

Bromine is a very reactive element in its pure form.

Le brome est un élément très réactif sous sa forme pure.

Prepositional phrase 'in its pure form'.

Bromine's high reactivity makes it an effective disinfectant for spas.

La haute réactivité du brome en fait un désinfectant efficace pour les spas.

Possessive 'Bromine's' used as a subject.

The use of bromine-based flame retardants is being strictly regulated.

L'utilisation d'ignifugeants à base de brome est strictement réglementée.

Present continuous passive 'is being regulated'.

Bromine is extracted from bromide-rich brine through an oxidation process.

Le brome est extrait de la saumure riche en bromure par un processus d'oxydation.

Compound adjective 'bromide-rich'.

Unlike chlorine, bromine does not lose its effectiveness at high pH levels.

Contrairement au chlore, le brome ne perd pas son efficacité à des niveaux de pH élevés.

Contrastive preposition 'Unlike'.

The laboratory must be equipped with a fume hood when handling bromine.

Le laboratoire doit être équipé d'une hotte aspirante lors de la manipulation du brome.

Modal verb 'must be' + passive.

Bromine compounds are often found in the plastic casings of electronics.

Les composés du brome se trouvent souvent dans les boîtiers en plastique des appareils électroniques.

Adverb of frequency 'often' placement.

Environmentalists are concerned about bromine levels in the upper atmosphere.

Les écologistes s'inquiètent des niveaux de brome dans la haute atmosphère.

Adjective + preposition 'concerned about'.

Bromine reacts vigorously with metals like potassium and sodium.

Le brome réagit vigoureusement avec des métaux comme le potassium et le sodium.

Adverb 'vigorously' modifying the verb 'reacts'.

The electrophilic addition of bromine to an alkene yields a vicinal dibromide.

L'addition électrophile de brome sur un alcène donne un dibromure vicinal.

Technical terminology used in a complex sentence.

Bromine exists as a diatomic molecule, which contributes to its volatility.

Le brome existe sous forme de molécule diatomique, ce qui contribue à sa volatilité.

Relative clause 'which contributes to...'.

The industrial synthesis of bromine involves the chlorination of seawater.

La synthèse industrielle du brome implique la chloration de l'eau de mer.

Noun phrase 'industrial synthesis of bromine'.

Bromine's role in the depletion of the ozone layer is more potent than that of chlorine.

Le rôle du brome dans l'appauvrissement de la couche d'ozone est plus puissant que celui du chlore.

Comparative structure with 'more potent than'.

The characteristic reddish-brown color of bromine is due to electronic transitions.

La couleur brun-rouge caractéristique du brome est due à des transitions électroniques.

Adjective 'characteristic' and 'due to' phrase.

Handling bromine requires specialized training due to its corrosive nature.

La manipulation du brome nécessite une formation spécialisée en raison de sa nature corrosive.

Gerund 'Handling' as the subject.

Bromine-containing pharmaceuticals have seen a decline in use due to toxicity concerns.

Les produits pharmaceutiques contenant du brome ont connu une baisse d'utilisation en raison de préoccupations liées à la toxicité.

Present perfect tense 'have seen'.

The titration of bromine can determine the degree of unsaturation in oils.

Le titrage du brome peut déterminer le degré d'insaturation des huiles.

Noun 'titration' followed by a prepositional phrase.

The anthropogenic release of bromine has significantly perturbed the stratospheric bromine cycle.

Le rejet anthropique de brome a considérably perturbé le cycle du brome stratosphérique.

Advanced vocabulary like 'anthropogenic' and 'perturbed'.

Bromine's liquid state at STP is a consequence of the balance between van der Waals forces and atomic mass.

L'état liquide du brome à TPN est une conséquence de l'équilibre entre les forces de van der Waals et la masse atomique.

Complex noun phrase as the subject.

The regioselectivity of bromine in free-radical halogenation is markedly superior to that of chlorine.

La régiosélectivité du brome dans l'halogénation radicalaire est nettement supérieure à celle du chlore.

Precise scientific terminology 'regioselectivity'.

Spectroscopic analysis of bromine vapors reveals a complex series of absorption bands.

L'analyse spectroscopique des vapeurs de brome révèle une série complexe de bandes d'absorption.

Subject-verb agreement with a complex subject.

The toxicity of bromine is mediated by its capacity to induce oxidative stress at a cellular level.

La toxicité du brome est médiée par sa capacité à induire un stress oxydatif au niveau cellulaire.

Passive voice with an agentive 'by' phrase.

Bromine isotopes are utilized in geochemical tracing to elucidate the origins of saline groundwater.

Les isotopes du brome sont utilisés dans le traçage géochimique pour élucider les origines des eaux souterraines salines.

Infinitive of purpose 'to elucidate'.

The persistence of organobromine pollutants necessitates rigorous environmental monitoring protocols.

La persistance des polluants organobromés nécessite des protocoles de surveillance environnementale rigoureux.

Abstract nouns 'persistence' and 'necessitates'.

Bromine's interaction with silver halides remains a fundamental principle in traditional silver-based photography.

L'interaction du brome avec les halogénures d'argent reste un principe fondamental de la photographie traditionnelle à base d'argent.

Stative verb 'remains' followed by a complement.

類義語

element 35 Br halogen diatomic bromine liquid halogen

反対語

noble gas alkali metal

よく使う組み合わせ

Liquid bromine

Bromine gas

Bromine tablets

Bromine concentration

Elemental bromine

Bromine vapor

Bromine atoms

Bromine-based

Bromine water

Bromine levels

よく使うフレーズ

Bromine floater

— A device that floats in a pool or spa to slowly release bromine.

Make sure the bromine floater is full.

Bromine test

— A chemical test used to identify specific compounds or measure levels.

The bromine test showed the presence of double bonds.

Bromine poisoning

— Illness caused by inhaling or touching too much bromine.

The workers were treated for bromine poisoning.

Bromine spill

— An accidental release of liquid bromine.

The hazmat team responded to a bromine spill on the highway.

Bromine donor

— A compound that releases bromine in a reaction.

The chemical acts as a bromine donor in this process.

Bromine residual

— The amount of bromine remaining in water after treatment.

We need to maintain a bromine residual of 3 ppm.

Bromine extraction

— The process of getting bromine from natural sources.

Bromine extraction is a major industry in the Dead Sea region.

Bromine compounds

— Substances made of bromine and other elements.

Many bromine compounds are used in medicine.

Bromine chemistry

— The study of how bromine reacts.

He specializes in bromine chemistry.

Bromine isotopes

— Different versions of bromine atoms with different masses.

Bromine isotopes are used in geological studies.

よく混同される語

bromine vs Bromide

Bromide is the ion or salt; bromine is the pure element.

bromine vs Boron

Boron is a solid element (B); bromine is a liquid element (Br).

bromine vs Barium

Barium is a heavy metal; bromine is a non-metal halogen.

慣用句と表現

"A bromide"

— A boring, unoriginal, or cliché remark intended to soothe.

He offered the usual bromide about 'everything happening for a reason.'

Literary/Informal

"Bromine sleep"

— A deep, chemical-induced sleep (archaic, referring to bromide sedatives).

He fell into a heavy bromine sleep after the long journey.

Archaic

"Stink like bromine"

— To have an incredibly sharp and unpleasant chemical smell.

The old factory still stinks like bromine.

Descriptive

"Red as bromine"

— Describing a very specific shade of dark, brownish-red.

The sunset was as red as bromine.

Literary

"Halogen-heavy"

— Containing many elements like bromine; often used to describe complex chemicals.

The solution was halogen-heavy and difficult to stabilize.

Technical

"Bromine-blind"

— Failing to notice the presence of hazardous chemicals (metaphorical).

The inspectors were bromine-blind to the safety risks.

Jargon

"To brominate"

— Metaphorically, to saturate something with a specific, often harsh, quality.

The critic brominated the film with his harsh reviews.

Rare/Metaphorical

"Bromine-rich"

— Abundant in bromine; used metaphorically for something intense.

The soil was bromine-rich, making it unique for study.

Descriptive

"The bromine stench"

— A common way to describe the smell of a chemistry lab.

The bromine stench followed him home.

Informal

"Stable as bromine"

— Sarcastic, as bromine is actually quite reactive.

Their relationship was about as stable as bromine in a heatwave.

Sarcastic

間違えやすい

bromine vs Bromide

Similar spelling and related chemistry.

Bromine is the neutral element (Br2), while bromide is the negatively charged ion (Br-). You eat bromide in salt, but you shouldn't eat bromine.

Sodium bromide is a salt, but bromine is a toxic liquid.

bromine vs Chlorine

Both are halogens used in pools.

Chlorine is a gas at room temperature and usually yellow-green; bromine is a liquid and reddish-brown.

Chlorine is cheaper, but bromine works better in hot tubs.

bromine vs Iodine

Both are halogens.

Iodine is a grey-black solid that turns into purple vapor; bromine is a reddish-brown liquid.

Iodine is used on cuts, but bromine is used in industrial chemicals.

bromine vs Boron

Both start with 'B' and are elements.

Boron is a hard, black metalloid used in glass; bromine is a liquid.

Boron is in your phone's glass, but bromine might be in the plastic case.

bromine vs Bromine water

Sounds like just water.

It is actually a solution of bromine gas dissolved in water, used for chemical tests.

Bromine water is orange, not clear like regular water.

文型パターン

Bromine is [adjective].

Bromine is red.

[Noun] uses bromine.

The spa uses bromine.

Bromine is used for [gerund].

Bromine is used for cleaning.

Because of its [property], bromine is [use].

Because of its reactivity, bromine is an effective sanitizer.

The [process] of bromine involves [noun].

The extraction of bromine involves oxidation.

Bromine's [property] necessitates [action].

Bromine's volatility necessitates the use of a fume hood.

Unlike [element], bromine is [property].

Unlike chlorine, bromine is a liquid.

Always [verb] when [verb+ing] bromine.

Always wear gloves when handling bromine.

語族

名詞

Bromide

Bromination

Bromism

Organobromine

動詞

Brominate

形容詞

Brominated

Bromic

Bromous

使い方

frequency

Common in science, industry, and pool maintenance; rare in general conversation.

よくある間違い

Using 'bromine' instead of 'bromide' for salts. → Sodium bromide.
Bromine is the element Br2; bromide is the ion Br- found in compounds.
Pronouncing it 'bro-mine' (like 'my mine'). → Pronounce it 'bro-meen'.
Halogens in English typically use the 'een' sound for their suffix.
Thinking bromine is a gas at room temperature. → Bromine is a liquid.
While it evaporates easily, its standard state is liquid.
Spelling it 'bromin'. → Bromine.
The 'e' is necessary for the correct English spelling of the element.
Confusing bromine with boron. → Bromine (Br) vs Boron (B).
They are completely different elements with different properties and uses.

ヒント

Handle with Care

Always handle liquid bromine in a laboratory fume hood to avoid breathing in the toxic red vapors.

Check Your Levels

If you use bromine in a spa, check the levels daily to ensure the water is safe and the equipment isn't being corroded.

Suffix Clue

Remember that most halogens end in '-ine' (Fluorine, Chlorine, Bromine, Iodine). This helps you group them together.

The Silent E

Don't forget the 'e' at the end of bromine. Without it, the word looks like a different chemical.

Reaction Color

In chemistry, watching the red color of bromine disappear is a classic way to tell a reaction is happening.

Keep it Cool

Bromine should be stored in a cool, dark place in a tightly sealed glass container to prevent evaporation.

Bromine vs Chlorine

Think of bromine as the 'heavy-duty' version of chlorine for hot water. It lasts longer but costs more.

Eco-friendly Alternatives

When buying electronics, look for 'halogen-free' labels if you want to avoid bromine-based flame retardants.

The 3 B's

Bromine is Brown, Bad-smelling, and a Big liquid (heavy).

Avoid Inhalation

If you smell a strong, bleach-like odor near a pool or lab, move to fresh air immediately; it might be bromine gas.

暗記しよう

記憶術

Bromine starts with 'B' for 'Bad smell' and 'Brown color'. Think of a 'B'rown 'B'ottle of 'B'romine.

視覚的連想

Imagine a dark red, bubbling liquid in a glass jar that is so smelly you have to wear a gas mask.

Word Web

Halogen Red Liquid Smell Pool Fire Chemistry Toxic

チャレンジ

Try to explain why bromine is used in hot tubs instead of chlorine to a friend using only three sentences.

語源

Bromine was discovered independently by Antoine Jérôme Balard and Carl Löwig in 1825 and 1826. Balard found it in the ash of seaweed from the salt marshes of Montpellier.

元の意味： Derived from the Greek word 'brōmos', which means 'stench' or 'bad smell'.

Greek (Etymological root), Latin (Scientific naming).

文化的な背景

Bromine is toxic; always mention safety when discussing its physical properties.

In the UK and US, 'bromine' is mostly heard in the context of pool maintenance or high school science.

Breaking Bad (The 'Br' in the title sequence refers to Bromine). The use of 'bromides' in classic literature to describe boring people. Scientific documentaries about the Dead Sea, a major source of bromine.

実生活で練習する

実際の使用場面

Swimming Pool Maintenance

Check the bromine levels
Add bromine tablets
Bromine vs chlorine
Bromine floater

Chemistry Laboratory

Bromine water test
Liquid bromine safety
Bromine vapors
Bromination reaction

Environmental Science

Ozone depletion
Brominated flame retardants
Mercury oxidation
Industrial runoff

Manufacturing

Halogen-free plastics
Flame retardant standards
Chemical synthesis
Bromine extraction

Medical History

Bromide sedatives
Potassium bromide
Bromine derivatives
Historical medicine

会話のきっかけ

"Did you know that bromine is one of the only two elements that are liquid at room temperature?"

"Do you prefer using chlorine or bromine in your hot tub?"

"I saw a video where bromine reacted with aluminum; it was incredibly bright!"

"Why do you think they call it bromine if it means 'stench' in Greek?"

"Have you ever noticed that 'Breaking Bad' uses the symbol for bromine in its logo?"

日記のテーマ

Imagine you are a scientist who just discovered bromine. Describe the smell and the color in your lab notes.

Write about the importance of fire safety and how chemicals like bromine help protect our homes.

Compare the experience of swimming in a chlorinated pool versus a brominated one.

Research how bromine is extracted from the Dead Sea and summarize the process.

Discuss the environmental pros and cons of using bromine-based chemicals in modern electronics.

よくある質問

10 問

Yes, bromine is highly toxic and corrosive. Inhaling its vapors can damage your lungs, and getting the liquid on your skin can cause severe chemical burns. Always use it in a well-ventilated area with protective gear.

Bromine is used because it is more stable than chlorine in warm water. It also doesn't produce the strong 'chemical smell' that chlorine does, making it more pleasant for indoor spas.

In its pure form, bromine is a heavy, dark reddish-brown liquid. It often has a thick cloud of reddish-brown gas floating above it because it evaporates very easily.

You won't find pure bromine in nature because it is too reactive. Instead, it is found as bromide salts in seawater, salt lakes, and underground brine deposits.

Pure bromine is not used in medicine, but its compounds (bromides) were used as sedatives in the past. Today, bromine is used to help create many modern drugs.

It is a test used in chemistry to see if a substance has double bonds (like in fats or oils). If you add orange bromine water to a substance and it turns clear, the test is positive.

Yes, certain bromine compounds can reach the upper atmosphere and destroy the ozone layer. This is why many bromine-based chemicals are now strictly controlled.

If you get bromine on your skin, you must immediately wash it with large amounts of water and seek medical attention. It is a very serious chemical burn.

No, bromine is a non-metal. It is part of the halogen group, which are all non-metallic elements.

It comes from the Greek word 'bromos,' which means 'stench.' It was named this because of its very strong and unpleasant smell.

無料登録してヒントとメモを見る