Hydrogen bromide

English Synonyms: Acide bromhydrique; acidebromhydrique; acidebromhydrique (french); Acido bromidrico; acidobromhidrico; acidobromidrico; Anhydrous hydrobromic acid; anhydroushydrobromicacid

CAS number: 10035-10-6

Molecular formula: BrH

Molecular weight: 80.91

EINECS number: 233-113-0

Related Categories: Inorganics; Biochemistry; Reagents for Oligosaccharide Synthesis; ACS Grade Chemical Synthesis; Analytical Reagents for General Use; EL, Puriss pa ACS; Puriss pa ACS; Halogenated Solutions Chemical Synthesis; Acid Solutions Tration; Inorganic Acids; Synthetic Reagents; Titration; Volumetric Solutions; TraceSelect Ultraatomic Absorption Spectroscopy (AAS); Acids & Bases; Digestion Reagents; Essential Chemicals; Ultrapure Reagents for Wet Digestion (Trace SELECT Ultra); Chemical Synthesis; Cc Bromine Compounds; Inorganic Chemicals; Inorganic Salts; Synthetic Reagents; Organic Solvents; General Reagents; Inorganic Acids; Heterocycles; Other Biochemical Reagents; Gas Organic Solvents; Liqiud crystal intermediates; Acids; Standards and Reference Materials; Microorganisms; Organic Salts; Strong Acids; Organic Materials; Organic Chemicals

Mol file: 10035-10-6.mol

Hydrobromic acid

Hydrobromic acid properties

Melting point -87 ° C (lit.)

Boiling point -67 ° C (lit.)

Density 1.49 g / mL at 25 ° C (lit.)

Vapor density 2.8 (vs air)

Vapor Pressure 334.7 psi (21 ° C)

Refractive index n20 / D 1.438

Flash point 40 ° C

Storage conditions

Solubility soluble

Acidity coefficient (pKa) -9 (at 25 ° C)

Form Solution

Color Light yellow, brown

Water-soluble soluble

Sensitivity Hygroscopic

Merck 14,4778

Stable. Incompatible with strong bases, strong oxidizing agents, ammonia, ozone, fluorine, water, metals. Air and light sensitive.

CAS Database 10035-10-6 (CAS DataBase Reference)

NIST chemical information Hydrogen bromide (10035-10-6)

EPA chemical information Hydrobromic acid (10035-10-6)

Hydrobromic acid use and synthesis methods

High toxicity. Gas or vapor are pungent odor, can stimulate the eyes and respiratory system. Patients with inhaled gases should be removed from the contaminated area and placed in rest and kept warm. If eyes are contaminated with plenty of water, severe cases should be treated for medical treatment. Wash the skin with plenty of water when it is contaminated. In severe cases, seek medical attention.

Chemical properties Colorless or light yellow liquid, slightly smoke. Soluble in chlorobenzene, diethoxy methane and other organic solvents. With water, alcohol, acetic acid immiscibility.

Use is to create a variety of inorganic bromide such as sodium bromide, potassium bromide, lithium bromide and calcium bromide, and some alkyl bromides such as methyl bromide, ethyl bromide and other basic raw materials. Medicine for the synthesis of sedatives and anesthetics. It is also a good solvent for some metal minerals for refining high purity metals. The petroleum industry is used as a separating agent for alkoxy and phenoxy compounds, alicyclic hydrocarbons and catalysts for the oxidation of chain hydrocarbons to ketones, acids or peroxides. Also used in the synthesis of dyes and spices.

Use For the manufacture of inorganic and organic bromides; Also used in the synthesis of spices, dyes and so on.

Use For high-purity refining and bromide synthesis, also used as analytical reagents

Use Determination of sulfur, selenium, bismuth, zinc and iron. Separation of tin from arsenic and antimony. Alkylation catalyst. reducing agent. Organic Synthesis. Preparation of organic and inorganic bromides. High-purity metal refining.

Use is to create a variety of inorganic bromide such as sodium bromide, potassium bromide, lithium bromide and calcium bromide, and some alkyl bromides such as methyl bromide, ethyl bromide and other basic raw materials. Medicine for the synthesis of sedatives and anesthetics. It is also a good solvent for some metal minerals for refining high purity metals. The petroleum industry is used as a separating agent for alkoxy and phenoxy compounds, alicyclic hydrocarbons and catalysts for the oxidation of chain hydrocarbons to ketones, acids or peroxides. Also used in the synthesis of dyes and spices. For the manufacture of various bromine compounds, but also can be used for pharmaceutical, dyes, spices and other industries for high-purity refining and bromide synthesis, also used as analytical reagents for the production of inorganic and organic bromides; Also used in synthetic spices , Dyes and so on.

Use as analytical reagent. Determination of sulfur and selenium, separation of tin from arsenic and antimony, determination of bismuth, zinc and iron, alkylation catalyst

Production Methods Bromine and hydrogen are directly synthesized from hydrogen bromide in the presence of an activated carbon catalyst. Then distillation, purification, hydrogen bromide. its

Br2 + H2 → 2HBr

Production methods Red phosphorus first red chlorate into the water reactor, slowly added by stirring bromine, the reaction of hydrobromic acid and phosphorous acid, by settling, filtration, distillation obtained hydrobromide products. its

P4 + 6Br2 + 12H2O → 12HBr + 4H3PO3

Sulfur dioxide through the sulfur dioxide into the reactor with bromine and crushed ice, keep the temperature below 20 ℃ reaction until the solution is yellow. The mixed solution was distilled, the solution was distilled off into barium hydroxide solution and the reaction of sulfuric acid generated barium sulfate precipitation. After standing, filtration, remove the precipitate, and then distilled to obtain hydrobromide products. its

Br2 + SO2 + 2H2O → 2HBr + HzSO4

Category harmful gases

Toxicity grade poisoning

Acute Toxicity Inhalation - Rat LC50: 2858 PPM / 1 hour; Inhalation - Mouse LC50: 814 PPM / 1 hour

Explosive hazardous characteristics and air mixture can burst

Flammability Hazard characteristics in case of hair hole agent flammable; case of cyanide poisonous hydrogen cyanide gas; thermal decomposition of toxic bromide gas

Storage and transportation warehouse ventilation cold dry; and cyanide, H hair hole agent, alkali storage.

Extinguishing agent water

Professional Standard TWA 3 PPM (10 mg / m3)