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Bromyl Fluoride
Bromyl fluoride is an inorganic compound of bromine, fluorine, and oxygen with the chemical formula . Synthesis *A reaction of (potassium tetrafluorooxobromate(V)) with HF. *Also, reactions of with , , and produce . *Hydrolysis of bromine pentafluoride at low temperatures: :: Physical properties The compound forms a colorless volatile liquid that decomposes at temperatures above 10 °C. It is highly reactive and unstable, and corrodes glass at room temperature. Chemical properties *Decomposes when heated: :: *Reacts violently with water: :: *Reacts with alkali In chemistry, an alkali (; from the Arabic word , ) is a basic salt of an alkali metal or an alkaline earth metal. An alkali can also be defined as a base that dissolves in water. A solution of a soluble base has a pH greater than 7.0. The a ...s: :: References {{Fluorine compounds Oxyfluorides Bromine compounds ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chloryl Fluoride
Chloryl fluoride is the chemical compound with the formula . This compound is a gas boiling at −6 °C. It is commonly encountered as side-product in reactions of chlorine fluorides with oxygen sources. It is the acyl fluoride of chloric acid. Preparation was first reported by Schmitz and Schumacher in 1942, who prepared it by the fluorination of . The compound is more conveniently prepared by reaction of sodium chlorate Sodium chlorate is an inorganic compound with the chemical formula Na ClO3. It is a white crystalline powder that is readily soluble in water. It is hygroscopic. It decomposes above 300 °C to release oxygen and leaves sodium chloride. Sever ... and chlorine trifluoride and purified by vacuum fractionation, i.e. selectively condensing this species separately from other products. : Structure In contrast to , is a pyramidal molecule as predicted by VSEPR. The differing structures reflects the greater tendency of chlorine to exist in positive oxi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sodium Fluoride
Sodium fluoride (NaF) is an inorganic compound with the formula . It is a colorless or white solid that is readily soluble in water. It is used in trace amounts in the fluoridation of drinking water to prevent tooth decay, and in toothpastes and topical pharmaceuticals for the same purpose. In 2022, it was the 221st most commonly prescribed medication in the United States, with more than 1million prescriptions. It is also used in metallurgy and in medical imaging. Uses Dental caries Fluoride salts are often added to municipal drinking water (as well as to certain food products in some countries) for the purpose of maintaining dental health. The fluoride enhances the strength of teeth by the formation of fluorapatite, a naturally occurring component of tooth enamel. Although sodium fluoride is used to fluoridate water and is the standard by which other water-fluoridation compounds are gauged, hexafluorosilicic acid (H2SiF6) and its salt sodium hexafluorosilicate (Na2Si ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NaBrO3
Sodium bromate, the inorganic compound with the chemical formula of NaBrO3, is the sodium salt of bromic acid. It is a strong oxidant. Uses Sodium bromate is mainly used in continuous or batch dyeing processes involving sulfur or vat dyes and as a hair-permagent, chemical agent, or gold solvent in gold mines when used with sodium bromide. Production Sodium bromate can be produced from a solution of sodium carbonate and bromine using chlorine gas as the oxidising agent. : It may also be produced by the electrolytic oxidation of aqueous sodium bromide. Human health issues Bromate in drinking water is undesirable because it is a suspected human carcinogen. Its presence in Coca-Cola's Dasani Dasani () is a brand of bottled water created by the Coca-Cola Company, launched in 1999. It is one of many List of Coca-Cola brands, brands of Coca-Cola bottled water sold around the world. The product is filtered and bottled. Marketing Un ... bottled water forced a recall of that ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NaOH
Sodium hydroxide, also known as lye and caustic soda, is an inorganic compound with the formula . It is a white solid ionic compound consisting of sodium cations and hydroxide anions . Sodium hydroxide is a highly corrosive base and alkali that decomposes lipids and proteins at ambient temperatures and at high concentrations may cause severe chemical burns. It is highly soluble in water, and readily absorbs moisture and carbon dioxide from the air. It forms a series of hydrates . The monohydrate crystallizes from water solutions between 12.3 and 61.8 °C. The commercially available "sodium hydroxide" is often this monohydrate, and published data may refer to it instead of the anhydrous compound. As one of the simplest hydroxides, sodium hydroxide is frequently used alongside neutral water and acidic hydrochloric acid to demonstrate the pH scale to chemistry students. Sodium hydroxide is used in many industries: in the making of wood pulp and paper, textiles, drinking w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alkali
In chemistry, an alkali (; from the Arabic word , ) is a basic salt of an alkali metal or an alkaline earth metal. An alkali can also be defined as a base that dissolves in water. A solution of a soluble base has a pH greater than 7.0. The adjective alkaline, and less often, alkalescent, is commonly used in English as a synonym for basic, especially for bases soluble in water. This broad use of the term is likely to have come about because alkalis were the first bases known to obey the Arrhenius definition of a base, and they are still among the most common bases. Etymology The word ''alkali'' is derived from Arabic ''al qalīy'' (or ''alkali''), meaning (see calcination), referring to the original source of alkaline substances. A water-extract of burned plant ashes, called potash and composed mostly of potassium carbonate, was mildly basic. After heating this substance with calcium hydroxide (''slaked lime''), a far more strongly basic substance known as ''caustic potash ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HBrO3
Bromic acid, also known as hydrogen bromate, is an oxoacid with the molecular formula HBrO3. It only exists in aqueous solution.''The Merck Index: An Encyclopedia of Chemicals, Drugs, and Biologicals''. 14th Edition. 2006.''Van Nostrand's Scientific Encyclopedia''. Glenn D. Considine. Ninth Edition. Volume 1. p 554 It is a colorless solution that turns yellow at room temperature as it decomposes to bromine.Recipes for Belousov–Zhabotinsky reagents. ''J. Chem. Educ.'', 1991, 68 (4), 320. doi:10.1021/ed068p320 Bromic acid and bromates are powerful oxidizing agents and are common ingredients in Belousov–Zhabotinsky reactions.The Source of the Carbon Monoxide in the Classical Belousov–Zhabotinsky Reaction. ''J. Phys. Chem. A.'', 2007, 111 (32), 7805–12 doi:10.1021/jp073512+ Belousov-Zhabotinsky reactions are a classic example of non-equilibrium thermodynamics Non-equilibrium thermodynamics is a branch of thermodynamics that deals with physical systems that are not in therm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
BrF3
Bromine trifluoride is an interhalogen compound with the formula BrF3. At room temperature, it is a straw-coloured liquid with a pungent odor which decomposes violently on contact with water and organic compounds. It is a powerful fluorinating agent and an ionizing inorganic solvent. It is used to produce uranium hexafluoride (UF6) in the processing and reprocessing of nuclear fuel. Synthesis Bromine trifluoride was first described by Paul Lebeau in 1906, who obtained the material by the reaction of bromine with fluorine at 20 °C: : The disproportionation of bromine monofluoride also gives bromine trifluoride: : Structure Like ClF3 and IF3, the BrF3 molecule is T-shaped and planar. In the VSEPR formalism, the bromine center is assigned two electron lone pairs. The distance from the bromine atom to each axial fluorine atom is 1.81 Å and to the equatorial fluorine atom is 1.72 Å. The angle between an axial fluorine atom and the equatorial fluorine atom is slightly sma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Angewandte Chemie International Edition
''Angewandte Chemie'' (, meaning "Applied Chemistry") is a weekly peer-reviewed scientific journal that is published by Wiley-VCH on behalf of the German Chemical Society (Gesellschaft Deutscher Chemiker). Publishing formats include feature-length reviews, short highlights, research communications, minireviews, essays, book reviews, meeting reviews, correspondences, corrections, and obituaries. This journal contains review articles covering all aspects of chemistry. According to the ''Journal Citation Reports'', the journal had a 2023 impact factor of 16.1. Editions The journal appears in two editions with separate volume and page numbering: a German edition, ''Angewandte Chemie'', and a fully English-language edition, ''Angewandte Chemie International Edition''. The editions are identical in content with the exception of occasional reviews of German-language books or German translations of IUPAC recommendations. Publication history In 1887, Ferdinand Fischer established the '' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iodine Pentoxide
Iodine pentoxide is the chemical compound with the formula I2O5. This iodine oxide is the anhydride of iodic acid, and one of the few iodine oxides that is stable. It is produced by dehydrating iodic acid at 200 °C in a stream of dry air: :2HIO3 → I2O5 + H2O Structure I2O5 is bent with an I–O–I angle of 139.2°, but the molecule has no mirror plane so its symmetry is C2 rather than C2v. The terminal I–O distances are around 1.80 Å and the bridging I–O distances are around 1.95 Å. Reactions Iodine pentoxide easily oxidises carbon monoxide to carbon dioxide at room temperature: :5 CO + I2O5 → I2 + 5 CO2 This reaction can be used to analyze the concentration of CO in a gaseous sample. I2O5 forms iodyl salts, O2+ with SO3 and S2O6F2, but iodosyl salts, O+ with concentrated sulfuric acid Sulfuric acid (American spelling and the preferred IUPAC name) or sulphuric acid (English in the Commonwealth of Nations, Commonwealth spel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bromine Pentafluoride
Bromine pentafluoride, Br F5, is an interhalogen compound and a fluoride of bromine. It is a strong fluorinating agent. BrF5 finds use in oxygen isotope analysis. Laser ablation of solid silicates in the presence of BrF5 releases O2 for subsequent analysis. It has also been tested as an oxidizer in liquid rocket propellants and is used as a fluorinating agent in the processing of uranium. Preparation BrF5 was first prepared in 1931 by the direct reaction of bromine and fluorine. This reaction is suitable for the preparation of large quantities, and is carried out at temperatures over with an excess of fluorine: :Br2 + 5 F2 → 2 BrF5 For the preparation of smaller amounts, potassium bromide is used: :KBr + 3 F2 → KF + BrF5 This route yields BrF5 almost completely free of trifluorides and other impurities. Reactions BrF5 reacts with water to form bromic acid and hydrofluoric acid: :BrF5 + 3 H2O → HBrO3 + 5 HF It is an extremely effective fluorinating agent, bei ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iodyl Fluoride
Iodyl fluoride is an inorganic compound of iodine, fluorine, and oxygen with the chemical formula . It is in the form of colorless crystals. Iodyl fluoride features iodine in the oxidation state of +5. The compound was initially synthesized in 1951. Synthesis Iodyl fluoride can be decomposed by iodosyl trifluoride heated to in nitrogen. Since this reaction is reversible, the reaction requires constant removal of iodine pentafluoride. : It can also be obtained by dissolving iodine pentoxide, , in anhydrous hydrogen fluoride. : Physical properties Iodyl fluoride forms colorless crystals of orthorhombic system. Reacts with water. Chemical properties Iodyl fluoride is stable in dry air, but slowly hydrolyzes to iodic and hydrofluoric acids in moisture. : The compound reacts with strong fluorinating agents such as bromine trifluoride and selenium tetrafluoride to form iodine pentafluoride. Iodyl fluoride can be reduced to elemental iodine by pure hydrogen peroxide Hydrogen pe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
