Product Identification

Product Name

Hydrogen bromide

Synonyms

Hydrogen bromide, anhydrous

CAS

10035-10-6

Formula

BrH

Molecular Weight

80.91

EINECS

233-113-0

RTECS

MW3850000

RTECS Class

Other

Merck

13,4799

Beilstein/Gmelin

620 (G)

EC Index Number

035-002-00-0

EC Class

Corrosive; Irritant

Physical and Chemical Properties

Appearance

A colorless to yellow aqueous liquid with a pungent odor.

Solubility in water

Miscible

Melting Point

-86

Boiling Point

-66.7

Vapor Pressure

20 (25 C)

Density

1.49 g/cm3

pKa/pKb

-9(at 25℃) (pKa)

Heat Of Vaporization

17.15 kJ/mol

Usage

In analytical chemistry & organic preparations.

Vapor Density

2.8

Odor threshold

6.6667 mg/m3

Refractive Index

1.325 (10 C)

First Aid Measures

Ingestion

Do NOT induce vomiting. If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid.

Inhalation

Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.

Skin

Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes.

Eyes

Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.

Handling and Storage

Storage

Store in a cool, dry place. Keep container closed when not in use.

Handling

Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation.

Hazards Identification

Inhalation

May cause respiratory tract irritation. The toxicological properties of this substance have not been fully investigated.

Skin

May cause skin irritation.

Eyes

May cause eye irritation.

Ingestion

Ingestion of large amounts may cause gastrointestinal irritation. The toxicological properties of this substance have not been fully investigated.

Hazards

Pressurized container may explode and release toxic, irritating vapor.

EC Risk Phrase

R 34 37

EC Safety Phrase

S 7/9 26 45

UN (DOT)

1048

Exposure Controls/Personal Protection

Personal Protection

Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves and clothing to prevent skin exposure. Clothing: Wear appropriate protective clothing to minimize contact with skin.

Respirators

Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.

Exposure Effects

Fever may occur with chronic intoxication. Acute intoxication can result in CNS depression and coma. Bromides cross the placenta and may be detected in the milk of nursing mothers. Case reports suggest that prenatal exposure may cause growth retardation, craniofacial abnormalities and developmental delay.

Exposure limit(s)

NIOSH REL: C 3 ppm (10 mg/m3) OSHA PEL: TWA 3 ppm (10 mg/m3) IDLH 30 ppm

Poison Class

2

Fire Fighting Measures

Flash Point

40

Fire Fighting

Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. To extinguish fire, use water, dry chemical, chemical foam, or alcohol-resistant foam.

Fire Potential

Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes.

Accidental Release Measures

Small spills/leaks

Clean up spills immediately, using the appropriate protective equipment. Sweep up, then place into a suitable container for disposal.

Stability and Reactivity

Stability

Stable under normal temperatures and pressures.

Incompatibilities

Strong oxidants.

Decomposition

Nitrogen oxides, carbon monoxide, irritating and toxic fumes and gases, carbon dioxide, nitrogen.

Combustion Products

If involved in a fire decomposes to produce irritants and toxic gases.

Transport Information

UN Number

1048

Hazard Class

2.3