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10035-10-6

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Identification

Name
Hydrogen bromide
CAS
10035-10-6
Synonyms
HBR
HBR/ACOH
HYDROBROMIC ACID
HYDROGEN BROMIDE
HYDROGEN BROMIDE-ACETIC ACID
HYDROGEN BROMIDE, ETHANOL REAGENT 20
HYDROGEN BROMIDE, METHANOL REAGENT 5
REFINED HYDROBROMIC ACID
Acide bromhydrique
acidebromhydrique
acidebromhydrique(french)
Acido bromidrico
acidobromhidrico
acidobromidrico
Anhydrous hydrobromic acid
anhydroushydrobromicacid
Bromowodor
bromowodor(polish)
bromured’hydrogene
bromured’hydrogeneanhydre(french)
EINECS(EC#)
233-113-0
Molecular Formula
BrH
MDL Number
MFCD00011323
Molecular Weight
80.91
MOL File
10035-10-6.mol

Chemical Properties

Definition
Hydrogen bromide in aqueous solution.
Appearance
colourless liquid with a strong irritating odour
mp 
−87 °C(lit.)

bp 
−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

Fp 
40°C
storage temp. 
Refrigerator
solubility 
soluble
Stability:
Stable. Incompatible with strong bases, strong oxidizing agents, ammonia, ozone, fluorine, water, metals. Air and light sensitive.
Water Solubility 
soluble
Sensitive 
Hygroscopic
Merck 
14,4778
CAS DataBase Reference
10035-10-6(CAS DataBase Reference)
NIST Chemistry Reference
Hydrogen bromide(10035-10-6)
EPA Substance Registry System
10035-10-6(EPA Substance)

Safety Data

Hazard Codes 
C,Xi
Risk Statements 
R35:Causes severe burns.
R37:Irritating to the respiratory system.
R34:Causes burns.
R10:Flammable.
R36/37/38:Irritating to eyes, respiratory system and skin .
Safety Statements 
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
S7/9:Keep container tightly closed and in a well-ventilated place .
RIDADR 
UN 3265 8/PG 2

WGK Germany 
1

RTECS 
MW3850000

HazardClass 
8
PackingGroup 
II
HS Code 
28111990
Hazardous Substances Data
10035-10-6(Hazardous Substances Data)

Raw materials And Preparation Products

Material Safety Data Sheet(MSDS)

Hazard Information

Reactivity Profile
HYDROGEN BROMIDE is an anhydrous (no water) strong acid. Reacts rapidly and exothermically with bases of all kinds (including amines and amides). Reacts exothermically with carbonates (including limestone and building materials containing limestone) and hydrogen carbonates to generate carbon dioxide. Reacts with sulfides, carbides, borides, and phosphides to generate toxic or flammable gases. Reacts with many metals (including aluminum, zinc, calcium, magnesium, iron, tin and all of the alkali metals) to generate flammable hydrogen gas. Reacts violently with acetic anhydride, 2-aminoethanol, ammonium hydroxide, calcium phosphide, chlorosulfonic acid, 1,1-difluoroethylene, ethylenediamine, ethyleneimine, oleum, perchloric acid, b-propiolactone, propylene oxide, silver perchlorate/carbon tetrachloride mixture, sodium hydroxide, uranium(IV) phosphide, vinyl acetate, calcium carbide, rubidium carbide, cesium acetylide, rubidium acetylide, magnesium boride, mercury(II) sulfate, calcium phosphide, calcium carbide.
Air & Water Reactions
Acrid odor, fumes in moist air forming clouds containing hydrobromic acid. Heat of solution large, [Merck, 11th ed., 1989].
Hazard
Toxic by inhalation, strong irritant to eyes and skin.
Health Hazard
Inhalation causes severe irritation of nose and upper respiratory tract, lung injury. Ingestion causes burns of mouth and stomach. Contact with eyes causes severe irritation and burns. Contact with skin causes irritation and burns.
Fire Hazard
Behavior in Fire: Pressurized container may explode and release toxic, irritating vapor.

Questions And Answer

Chemical properties
Colorless or light yellow liquid, slightly smoke. Soluble in chlorobenzene, diethoxymethane and other organic solvents. Can be miscibled with water, alcohol, acetic acid.
Uses
(1) Hydrogen bromide is the basic raw material for the manufacture of a variety of inorganic bromide (Such as sodium bromide, potassium bromide, lithium bromide and calcium bromide and so on) and some alkyl bromide (Such as methyl bromide, bromoethane and so on). It is used in medicine to synthesize the synthesis of sedatives and anesthetics, etc. and also is a good solvent for some metal minerals, used in the refinement of high purity metals. In the petroleum industry, it is used as the separation of alkoxy and phenoxy compounds, and a catalyst for the oxidation of cyclic hydrocarbons and chain hydrocarbons to ketones, acid or peroxide. Also used in synthetic dyes and spices.
(2) For the manufacture of inorganic and organic bromide; also used for synthetic perfumes, dyes and so on.
(3) For the refinement of high purity and bromide synthesis, also used as analytical reagents
(4) 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.
(5) It is the basic raw material for the manufacture of a variety of inorganic bromide (Such as sodium bromide, potassium bromide, lithium bromide and calcium bromide and so on ) and some alkyl bromide (Such as methyl bromide, bromoethane and so on). It is used in medicine to synthesize the synthesis of sedatives and anesthetics, etc. and also is a good solvent for some metal minerals, used in the refinement of high purity metals. In the petroleum industry, it is used as the separation of alkoxy and phenoxy compounds, and a catalyst for the oxidation of cyclic hydrocarbons and chain hydrocarbons to ketones, acid or peroxide. Also used in synthetic dyes and spices. It is used in the manufacture of various bromine compounds, can also be used for medicine, dyes, spices and other industries. For the purification of high purity and synthesis of bromide, and also for analysis reagents. For the manufacture of inorganic and organic bromide; also used for synthetic perfumes, dyes and so on.
(6) Used as analytical reagent. Determination of sulfur and selenium, separation of tin from arsenic and antimony, determination of bismuth, zinc and iron, alkylation catalyst.
production method
(1) Bromine and hydrogen reaction of hydrogen bromide in the Presence of Activated Carbon Catalyst. Followed by distillation and purification to obtain hydrogen bromide. Br2+H2→2HBr
(2) Red phosphorus method: First, the red phosphorus into the water reactor, slowly adding bromine under stirring, the reaction of hydrobromic acid and phosphoric acid, by sedimentation, filtration, distillation obtained hydrobromic acid. P4+6Br2+12H2O→12HBr+4H3PO3
Sulfur dioxide method: The sulfur dioxide is added into the reaction kettle with bromine and crushed ice, and the reaction is continued until the temperature is below 20 ℃ until the solution is yellow. The mixed solution is distilled, and the solution is added to the solution of barium hydroxide and sulfuric acid to produce barium sulfate precipitation. After standing, filtering, remove the precipitate, then distillation of the filtrate was hydrobromic acid products.
Hazards & Safety Information
Category: Harmful gas
Toxicity classification: Poisoning
Acute toxicity: Inhalation-Rats LC50: 2858 PPM/h; Inhalation-mice LC50: 814 PPM/h
Hazardous properties of explosives: Mixed with air explosion
Flammability hazard characteristics: It is combustible in case of H hair pore agent; Case of cyanide release of toxic hydrogen cyanide gas; Thermal decomposition of toxic bromide gas.
Storage and transportation characteristics: Low temperature and dry storage; and cyanide, Separate storage with cyanide, H hair pore agent, and alkali.
Fire extinguishing agent: water
Professional standards: TWA 3 PPM (10mg/m3)

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