How To Use Bromine In A Sentence
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A is molecular formula C8H10 does not decolorise bromine water but when refluxed with aq, acidified KMnO4 the latter decolorise forming compound B with C7H6O2.
Yahoo! Answers: Latest Questions
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These elements include mercury, bromine, cadmium, indium, thallium, lead, and bismuth.
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Two related xanthines, theobromine and theophylline, are often present in smaller amounts.
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These compounds are more reactive than paraffins or naphthenes and readily combine with other elements such as hydrogen, chlorine, and bromine.
Hydrocarbon chemistry
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Dry chlorine, iodine, bromine and fluorine cause little or no corrosion of magnesium at room or slightly elevated temperature.
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The proportion of bromine to other chemically similar elements, like chlorine, varied by a factor of 10 from place to place.
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Methyl xanthines (caffeine, theophylline and theobromine) are found in seeds and leaves of a variety of unrelated plant species, including coffee, tea, cocoa, cola and mate.
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The pharmacophore included a hydrogen bond receptor, a hydrogen bond donor, a hydrophobic area and a phenyl ring with a chlorine or a bromine atom.
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Allenes are prepared by the removal of bromine and hydrogen bromide from 1,2, 3 tribromopropane and its derivatives under the action of potassium hydroxide, zinc, and ethanol.
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Since we had found previously that by adding bromine to the golden (SN) x material, we could increase its conductivity tenfold, we thought that perhaps the impurity in the polyacetylene was acting as a dopant and was actually increasing the conductivity of the polyacetylene, rather than decreasing it.
Alan G. MacDiarmid - Autobiography
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Recent experiments have begun identifying oxidizing gases, such as ozone and molecules containing the halogens bromine and chlorine, as triggers for that mercury fallout.
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Soc. _, 1899, 1084-1089) drew attention to bromine absorption methods and tried to rewaken interest in them.
The Handbook of Soap Manufacture
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It is often listed as mercuric oxide, phenyl mercuric acetate, benzoate, bromine, chloride or borate.
Deirdre Imus: Kiss My "Green" Lips
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Chocolate is also a source of several mood-elevating constituents, including tryptophan (precursor to serotonin), anandamide (a natural brain chemical very similar to the cannabinoids in marijuana), theobromine (far milder cousin to caffeine), phenylethylamine and magnesium.
Dr. Nicholas Perricone: How Sweet It Is: Good News About Chocolate and Cocoa
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Organohalogens are organic compounds that contain one or more halogen atoms (fluorine, chlorine, bromine or iodine).
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As its position in the periodic table would suggest, it is less active than the three halogens above - fluorine, chlorine, and bromine.
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The ingredient discovered by the scientists is called theobromine, a derivative found in cocoa.
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The Michigan-based environmental group Ecology Center has released the results of its analysis of more than 60 different car seat models, testing for chemicals such as bromine, chlorine, and lead.
The FREAKest Links - Freakonomics Blog - NYTimes.com
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While chlorine and bromine chemicals cause the ozone hole, extremely cold temperatures, especially near the edge of Antarctica, are also key factors in ozone loss.
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Currently, the largest volume organic bromine product is methyl bromide, a fumigant.
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It was shown that the merest trace of soluble haloid would reverse an image by the extraction of bromine from it, and the fact that the most refrangible part of the spectrum was principally efficacious in completing this action showed how necessary it was to avoid falling into error when analyzing photographic action by the spectroscope.
Scientific American Supplement, No. 392, July 7, 1883
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About the same time, Mr. John Goddard, of London (who was associated with myself), discovered a rather valuable combination of chemicals, consisting of a mixture of iodine, bromine, iodus, and iodic acid, and
American Hand Book of the Daguerreotype
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Three very similar compounds - all in this same group of alkaloids - are present in common beverages, namely caffeine, theophylline, and theobromine.
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The two main ingredients are reactive halogen gases such as chlorine or bromine and sunlight.
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Iodine, bromine, creosote soap, and others containing very volatile substances, are best prepared cold by shaving up the curd soap in a mortar, and mixing the medicant with it by long beating.
The Art of Perfumery And Methods of Obtaining the Odors of Plants
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Bromine and iodine react in a remarkable manner with free hydroxylamine.
Scientific American Supplement, No. 841, February 13, 1892
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The most important use of bromine today is in making flame retardant materials.
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Along with carbon, they include elements such as hydrogen, oxygen, fluorine, chlorine, bromine, sulphur or nitrogen.
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Alkaloids have been described as components of plant defence responses and the two main alkaloids found in cocoa are caffeine and theobromine.
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A similar reaction occurs with bromine but not with iodine or fluorine.
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For instance, electronegativities in the halide sequence fluorine, chlorine, bromine, and iodine decrease from fluorine through iodine.
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Recent experiments have begun identifying oxidizing gases, such as ozone and molecules containing the halogens bromine and chlorine, as triggers for that mercury fallout.
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The elements hydrogen, nitrogen, oxygen, fluorine, chlorine, bromine and iodine consist of diatomic molecules.
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The name bromine, for example, is derived from a Greek word meaning a stench, referring to the extremely unpleasant odor of the substance.
An Elementary Study of Chemistry
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Measure 3 ml of a 3% aqueous solution of bromine into each of three test tubes and add 1 ml portions of purified ligroin to two of the tubes and 1 ml of cyclohexene to the third.
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On the seashore, near the spa called ‘Sulfurea’, there is a swimming pool with sulphureous waters containing bromine, sodium chloride and sodium iodide: a pleasant immersion, together with some natural aesthetical treatments, can eliminate the tiredness accumulated during a year of work.
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However, with slightly higher vibrational excitation, a 23-quanta boost, the bromine anharmonicity led to sharing of the kinetic energy between the Ne atoms and a much more complicated dissociation mechanism.
PhysOrg.com - latest science and technology news stories
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Bromine even reacts with relatively inert elements such as platinum and palladium.
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Per Wikipedia: Mercury is a heavy, silvery d-block metal [that] is one of six elements that are liquid at or near room temperature and pressure, the others being caesium, francium, gallium, bromine, and rubidium.
Annotations for Trinity issue #51 | Robot 6 @ Comic Book Resources – Covering Comic Book News and Entertainment
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The chocolate loved by humans is made from cocoa beans and contains a chemical called theobromine which, in high concentrations, can affect a dog's heart, lungs and central nervous system.
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Oxygen, the next most electronegative element, is also a powerful oxidant, as are chlorine and bromine.
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It is imperative that the bromine used should be pure, as crude bromine frequently contains bromoform.
Nitro-Explosives: A Practical Treatise
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The halogens are a group of chemical elements that includes fluorine, chlorine, bromine, iodine, and astatine.
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The word bromine comes from the Greek word bromos, meaning 'horrible smell'.
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The thinning of the ozone is caused by the presence of ozone destructing gases in the atmosphere such as chlorine and bromine, originating from man-made products like chlorofluorocarbons (CFCs), which have still not vanished from the air but are on the decline as they are banned under the Montreal Protocol, which was signed on 16 September 1987.
2007 Ozone Hole Smaller than Usual | Impact Lab
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As a stimulant, chocolate's theobromine, historically used as an aphrodisiac, is a vasodilator, meaning it widens blood vessels, and is used to lower blood pressure.
Alex Jamieson: Healing Hearts With Chia and Chocolate
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The halides are a group of minerals whose principle chemical constituents are fluorine, chlorine, iodine, and bromine.
Composition of rocks
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A team led by Hans-Joerg Deiseroth in Siegen, Germany, reported in the journal Angewandte Chemie that the characterisation of the most conductive representative of the man-made argyrodite minerals was made of lithium, phosphorus, sulphur and bromine atoms.
Batteries that never needs recharging
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That its medicinal properties are appreciated is shown by its price: during 1918 the retail price was about 8 shillings an ounce, from which we can calculate that every pound of cocoa contained nearly two shillingsworth of theobromine.
Cocoa and Chocolate Their History from Plantation to Consumer
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Commercial bromine is rarely pure, the chief impurities present in it being chlorine, hydrobromic acid, and bromoform
Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 "Brescia" to "Bulgaria"
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We get bromine from pesticides, dough conditioners, and from disinfectants for water in hot tubs and commercial spas.
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Using a machine called a mass spectrometer, Hurst identified the compound theobromine in some of that residue.
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For antiseptic purposes it has been prepared as "bromum solidificatum," which consists of kieselguhr or similar substance impregnated with about 75\% of its weight of bromine.
Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 "Brescia" to "Bulgaria"
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I have found it to yield more satisfactory results than bromine, which is much more expensive.
Scientific American Supplement, No. 324, March 18, 1882
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As we know that chocolate contains bromine, which is extremely deadly to dogs.
MyLinkVault Newest Links
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So, in the Lounge, we are reminded that computers, TVs, and radios contain such deadly things as cadmium, arsenic, bromine, and lead mercury.
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For that matter, it would have been too late even when the discovery was made and action taken, if the industry had used primarily bromine, rather than chlorine, to halogenate fluorocarbon compounds for market purposes.
RealClimate
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No oxides of bromine have as yet been isolated, but three oxy-acids are known, namely hypobromous acid, HBrO, bromous acid, HBrO_2, and bromic acid, HBrO_3.
Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 "Brescia" to "Bulgaria"
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Per Wikipedia: Mercury is a heavy, silvery d-block metal [that] is one of six elements that are liquid at or near room temperature and pressure, the others being caesium, francium, gallium, bromine, and rubidium.
Annotations for Trinity issue #51 | Robot 6 @ Comic Book Resources – Covering Comic Book News and Entertainment
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On the seashore, near the spa called ‘Sulfurea’, there is a swimming pool with sulphureous waters containing bromine, sodium chloride and sodium iodide: a pleasant immersion, together with some natural aesthetical treatments, can eliminate the tiredness accumulated during a year of work.
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The halogens are a group of chemical elements that includes fluorine, chlorine, bromine, iodine, and astatine.
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In the stratosphere, the source gases are converted through photolysis and reaction with the hydroxyl radical to inorganic species of bromine, chlorine, and fluorine.
Factors affecting arctic ozone variability in the Arctic
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Elemental bromine is made by oxidation, removal of electrons from bromide ions in brine.
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Bromine became the next big thing in 1857, followed by barbital, the first of the barbiturates.
The Chemistry of Calm
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The ozone depleting compounds contain combinations of the elements chlorine, fluorine, bromine, carbon and hydrogen.
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A team led by Hans-Joerg Deiseroth in Siegen, Germany, reported in the journal Angewandte Chemie that the characterisation of the most conductive representative of the man-made argyrodite minerals was made of lithium, phosphorus, sulphur and bromine atoms.
Batteries that never needs recharging
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The halogens are a group of chemical elements that includes fluorine, chlorine, bromine, iodine, and astatine.
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The main components of this tea are natural xanthines such as caffeine, theobromine, theophylline and tanni.
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The group lithium - sodium - potassium has a valency of one, as does the group chlorine - bromine - iodine.
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Bromine is another halogen particularly effective at destroying ozone, and its overall levels may increase or remain high because of shorter-lived substances, such as bromoform [25].
Future changes in ozone in the Arctic
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Cocoa contains theobromine, an alkaloid that penetrates the skin to the subcutaneous fat layer and may help stimulate the release of stored fat.
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This invention provides concentrated aqueous biocidal solutions formed from bromine chloride, sodium hydroxide, and sulfamic acid.
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The elements that appear enriched from measurements that Spirit took with her alpha particle x-ray spectrometer are potassium, phosphorous, sulfur, chlorine, bromine.
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There is no caffeine in chocolate, though a related compound, theobromine, is present.
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Along with untold cubic feet of natural gas and other assorted chemicals like bromine and iodine.
DESTROY THE KENTUCKY
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In a haloform reaction with iodine, bromine, or chlorine, methyl ketones are converted into the corresponding carboxylic acid and haloform.
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‘While chlorine and bromine chemicals cause the ozone hole, temperature is also a key factor in ozone loss,’ Newman said.
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Mercury is the only liquid metal and the only liquid element except for bromine.
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In addition to its direct toxicity there are serious concerns that Deca breaks down in the environment to form PBDEs with fewer bromines, which are more persistent and bioaccumulative in people.
Enviroblog: Extinguishing Deca: A toxic flame retardant may flicker out Archives
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Dry chlorine, iodine, bromine and fluorine cause little or no corrosion of magnesium at room or slightly elevated temperature.
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Other nations have signed since then, and recent studies indicate that the levels of bromine, another ozone-destroying chemical, are actually dropping.
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The spa's thermal waters, which bubble out of the ground at 38 degrees centigrade, have a high incidence of sulphate sodium, bromine and iodine and are particularly beneficial for those with respiratory conditions.
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It was shown that the merest trace of soluble haloid would reverse an image by the extraction of bromine from it, and the fact that the most refrangible part of the spectrum was principally efficacious in completing this action showed how necessary it was to avoid falling into error when analyzing photographic action by the spectroscope.
Scientific American Supplement, No. 392, July 7, 1883
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-- Of all common photographic paper, the best, because the least troublesome in making, and the most satisfactory in result, is that which is termed bromine paper, and which is thus prepared: -- Dissolve one hundred grains of bromide of potassium in one ounce of distilled water, and soak the paper in this solution.
History and Practice of the Art of Photography
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Jacob Berzelius immediately denominated chlorine, bromine, and iodine as ‘halogens’ or elements that form salts.
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The unsaturated benzene ring readily reacts with halogens, rapidly discoloring bromine water.
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We get bromine from pesticides, dough conditioners, and from disinfectants for water in hot tubs and commercial spas.
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Other promising technologies not yet in widespread use for wastewater management include ozonation, the use of membranes, peracetic acid or bromine, and even a diamond electrode-based system .
Chlorine Treatment Seen as Risky
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There is another chemical on the market called bromine that comes in a cartridge format will self dispense itself into your hot tub for up to 60 days.
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Fluorine, chlorine, and bromine are all more chemically reactive than iodine; when in the body, they all tend to disrupt stable iodine molecules, displacing the iodine and causing its excretion.
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Then there was chlorine, bromine, and iodine: pungent, poisonous, and coloured gases.
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Along with carbon, they include elements such as hydrogen, oxygen, fluorine, chlorine, bromine, sulphur or nitrogen.
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The ozone depleting compounds contain combinations of the elements chlorine, fluorine, bromine, carbon and hydrogen.
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Especially the first stage of the electro-osmosis produces a cathodic migration of the phenols, which may then be detected at a cathode by means of the iron and bromine reactions.
Synthetic Tannins
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We use a kind of bromine tablet in our spa in the US and it works great.
No such thing as city water?
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And similarly, we recognize quite simply bromine in chloroform.
Jean Baptiste Perrin - Nobel Lecture
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These elements include mercury, bromine, cadmium, indium, thallium, lead, and bismuth.
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It should also be mentioned that other chemical substances have attacked the ozone layer including nitrous oxides from fertilisers, chlorine, carbon dioxide and bromine halocarbons.
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Bromine-sensitized and Mercury-developed daguerreotypes have relatively compared to Becquerel-processed dags fast exposure times; the sitting might be anywhere from 10-60 seconds depending on the lighting conditions.
Antique photograph of the week: Smiling baby « knitnut.net
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Along with carbon, they include elements such as hydrogen, oxygen, fluorine, chlorine, bromine, sulphur or nitrogen.
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Chemical-products maker Gulf Resources rose 42 cents, or 6.3%, to 7.10 after the China-based company boosted its outlook for the year for the second time since April on continued price increases in bromine, which is used in fire retardants and fine chemicals.
Health Care Leads Gains,
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Phosphorus reacts with bromine to give phosphorus tribromide, and in the first step this converts the carboxylic acid into an acyl bromide.
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Caffeine and theobromine are two naturally occurring alkaloids that are present in plants used to brew beverages in many cultures.
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The halogens are a group of chemical elements that includes fluorine, chlorine, bromine, iodine, and astatine.
