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BROMOCHLOROMETHANE

ICSC: 0392

Chlorobromomethane
Methylene chlorobromide
CH2BrCl
Molecular mass: 129.4
ICSC # 0392 		CAS # 74-97-5
RTECS # PA5250000
UN # 1887
October 23, 1995 Validated

TYPES OF HAZARD/ EXPOSURE

ACUTE HAZARDS/ SYMPTOMS

PREVENTION

FIRST AID/
FIRE FIGHTING

FIRE Not combustible.

In case of fire in the surroundings: use appropriate extinguishing media.
EXPLOSION


EXPOSURE
PREVENT GENERATION OF MISTS!

•INHALATION Dizziness. Drowsiness. Headache. Nausea. Unconsciousness.
Ventilation, local exhaust, or breathing protection.
Fresh air, rest. Half-upright position. Artificial respiration may be needed. Refer for medical attention.
•SKIN Dry skin. Redness.
Protective gloves.
Remove contaminated clothes. Rinse skin with plenty of water or shower.
•EYES Redness.
Safety spectacles or 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 (Further see Inhalation).
Do not eat, drink, or smoke during work.
Do NOT induce vomiting. Refer for medical attention.

SPILLAGE DISPOSAL

STORAGE

PACKAGING & LABELLING

Collect leaking liquid in sealable containers. Absorb remaining liquid in sand or inert absorbent and remove to safe place. Do NOT wash away into sewer, then remove to safe place. Personal protection: A filter respirator for organic gases and vapours.
Separated from food and feedstuffs . Dry. Ventilation along the floor.
Do not transport with food and feedstuffs.
UN Hazard Class: 6.1
UN Packing Group: III
ICSC: 0392 Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities (C) IPCS CEC 1994. No modifications to the International version have been made except to add the OSHA PELs, NIOSH RELs and NIOSH IDLH values.

BROMOCHLOROMETHANE

ICSC: 0392

I

M

P

O

R

T

A

N

T


D

A

T

A

PHYSICAL STATE; APPEARANCE:
COLOURLESS TO YELLOW LIQUID , WITH CHARACTERISTIC ODOUR.

PHYSICAL DANGERS:


CHEMICAL DANGERS:
The substance decomposes on heating producing toxic and corrosive fumes including hydrogen chloride , phosgene , hydrogen bromide . Attacks many metals including steel, aluminium, magnesium and zinc unless inhibited.

OCCUPATIONAL EXPOSURE LIMITS:
TLV: 200 ppm as TWA; (ACGIH 2004).
MAK: skin absorption (H);
Carcinogen category: 3B;
(DFG 2004).
OSHA PEL: TWA 200 ppm (1050 mg/m3)
NIOSH REL: TWA 200 ppm (1050 mg/m3)
NIOSH IDLH: 2000 ppm See: 74975


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

INHALATION RISK:
A harmful contamination of the air can be reached rather quickly on evaporation of this substance at 20°C.

EFFECTS OF SHORT-TERM EXPOSURE:
Inhalation of the substance may cause lung oedema (see Notes). The substance may cause effects on the central nervous system and blood , resulting in impaired functions and formation of carboxyhaemoglobin. Exposure may result in lowering of consciousness.

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
Repeated or prolonged contact with skin may cause dermatitis. Lungs may be affected by repeated or prolonged exposure. The substance may have effects on the kidneys and liver , resulting in impaired functions .

PHYSICAL
PROPERTIES

Boiling point: 68°C
Melting point: -88°C
Relative density (water = 1): 2.0
Solubility in water:
poor
Vapour pressure, kPa at 20°C: 15.6
Relative vapour density (air = 1): 4.5

ENVIRONMENTAL
DATA


N O T E S

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 is therefore essential. Immediate administration of an appropriate inhalation therapy by a doctor or a person authorized by him/her, should be considered. Halon 1011 is a trade name. Card has been partly updated in October 2005. See sections Occupational Exposure Limits, Emergency Response.
Transport Emergency Card: TEC (R)-61GT1-III

ADDITIONAL INFORMATION



ICSC: 0392 BROMOCHLOROMETHANE
(C) IPCS, CEC, 1994
IMPORTANT LEGAL NOTICE: Neither NIOSH, the CEC or the IPCS nor any person acting on behalf of NIOSH, 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. The only modifications made to produce the U.S. version is inclusion of the OSHA PELs, NIOSH RELs and NIOSH IDLH values.
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