International Chemical Safety Cards

HYDROGEN BROMIDE ICSC: 0282
HYDROGEN BROMIDE
Hydrobromic acid
(cylinder)
HBr
Molecular mass: 80.9
CAS # 10035-10-6
RTECS # MW3850000
ICSC # 0282
UN # 1048 (anhydrous); 1788 (hydrobromic acid solution)
EC # 035-002-01-8
TYPES OF
HAZARD/
EXPOSURE 		ACUTE HAZARDS/
SYMPTOMS 		PREVENTION FIRST AID/
FIRE FIGHTING
FIRE Not combustible. Heating will cause rise in pressure with risk of bursting.

In case of fire in the surroundings: all extinguishing agents allowed. In case of fire in the surroundings: use water spray to knock down toxic vapour.
EXPLOSION Risk of fire and explosion on contact with metals as a result of hydrogen formation.

In case of fire: cool cylinder by spraying with water but avoid contact of the substance with water.
 
EXPOSURE
STRICT HYGIENE!
IN ALL CASES CONSULT A DOCTOR!
INHALATION Burning sensation. Cough. Sore throat.
Ventilation, local exhaust, or breathing protection.
Fresh air, rest. Half-upright position. Artificial respiration if indicated. Refer for medical attention.
SKIN Redness. Skin burns. Pain. Serious frostbite.
Protective gloves. Cold-insulating gloves.
First rinse with plenty of water, then remove contaminated clothes and rinse again. Refer for medical attention.
EYES Redness. Pain. Severe deep burns.
Eye protection in combination with breathing protection.
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
INGESTION
Do not eat, drink, or smoke during work.

SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING
Evacuate danger area! Consult an expert! Ventilation. NEVER direct water jet on liquid. Remove gas with fine water spray (extra personal protection: complete protective clothing including self-contained breathing apparatus).
Separated from incompatible materials (see Chemical Dangers). Cool. Dry. Ventilation along the floor.

C symbol
R: 35-37
S: (1/2-)7/9-26-45
UN Hazard Class: 2.3
UN Subsidiary Risks: 8
SEE IMPORTANT INFORMATION ON BACK
ICSC: 0282 Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities © IPCS CEC 1993

International Chemical Safety Cards

HYDROGEN BROMIDE ICSC: 0282

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PHYSICAL STATE; APPEARANCE:
COLOURLESS COMPRESSED LIQUEFIED GAS , WITH PUNGENT ODOUR.

PHYSICAL DANGERS:
The gas is heavier than air.

CHEMICAL DANGERS:
The solution in water is a strong acid, it reacts violently with bases and is corrosive. Reacts violently with strong oxidants and many organic compounds causing fire and explosion hazard. Attacks many metals forming flammable hydrogen gas (see ICSC # 0001).

OCCUPATIONAL EXPOSURE LIMITS (OELs):
TLV: 3 ppm; 10 mg/m3 as CEILING (ACGIH 1992-1993).


ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation.

INHALATION RISK:
A harmful concentration of this gas in the air will be reached very quickly on loss of containment.

EFFECTS OF SHORT-TERM EXPOSURE:
The substance is corrosive to the eyes, the skin and the respiratory tract. Inhalation of the gas may cause lung oedema (see Notes). Rapid evaporation of the liquid may cause frostbite.

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
PHYSICAL
PROPERTIES
 Boiling point: -67°C
Melting point: -87°C
Relative density (water = 1): 1.8		 Solubility in water, g/100 ml at 20°C: 193
Vapour pressure, kPa at 15°C: 1830
Relative vapour density (air = 1): 2.71
ENVIRONMENTAL
DATA
N O T E S
The occupational exposure limit value should not be exceeded during any part of the working exposure. The symptoms of lung oedema often do not become manifest until a few hours have passed and they are aggravated by physical effort. Rest and medical observation are therefore essential. The odour warning when the exposure limit value is exceeded is insufficient. Do NOT take working clothes home. Do NOT spray water on leaking cylinder (to prevent corrosion of cylinder). Turn leaking cylinder with the leak up to prevent escape of gas in liquid state.
Transport Emergency Card: TEC (R)-668
NFPA Code: H 3; F 0; R 0;
ADDITIONAL INFORMATION


ICSC: 0282 HYDROGEN BROMIDE
© IPCS, CEC, 1993
IMPORTANT LEGAL NOTICE: Neither the CEC or the IPCS nor any person acting on behalf of the CEC or the IPCS is responsible for the use which might be made of this information. This card contains the collective views of the IPCS Peer Review Committee and may not reflect in all cases all the detailed requirements included in national legislation on the subject. The user should verify compliance of the cards with the relevant legislation in the country of use.