International Chemical Safety Cards

METHYL BROMIDE ICSC: 0109
World Health Organization (WHO) International Labour Organization (ILO) United Nations Environmental Programme (UNEP) European Commission National Institute for Occupational Safety and Health (NIOSH)
Bromomethane
Monobromomethane
CH3Br
Molecular mass: 94.9
(cylinder)
2 Poison Gas placard ICSC #    0109
CAS #     74-83-9
RTECS # PA4900000
UN #        1062
EC #         602-002-00-2
November 25, 2009 Validated
Fi, review at IHE: 10/09/89
TYPES OF HAZARD/ EXPOSURE ACUTE HAZARDS/ SYMPTOMS PREVENTION FIRST AID/
FIRE FIGHTING
FIRE Combustible under specific conditions. Gives off irritating or toxic fumes (or gases) in a fire.
NO open flames. NO contact with aluminium, zinc, magnesium or pure oxygen.
Shut off supply; if not possible and no risk to surroundings, let the fire burn itself out; in other cases extinguish with appropriate extinguishing agent .
EXPLOSION Risk of fire and explosion on contact with aluminium, zinc, magnesium or oxygen.

In case of fire: keep cylinder cool by spraying with water.
EXPOSURE
STRICT HYGIENE!
IN ALL CASES CONSULT A DOCTOR! FIRST AID: USE PERSONAL PROTECTION
 •INHALATION Cough. Sore throat. Dizziness. Headache. Abdominal pain. Vomiting. Weakness. Shortness of breath. Confusion. Hallucinations. Loss of speech. Incoordination. Convulsions. Symptoms may be delayed (see Notes).
Ventilation, local exhaust, or breathing protection.
Fresh air, rest. Half-upright position. Artificial respiration may be needed. Refer immediately for medical attention.
 •SKIN MAY BE ABSORBED! Tingling. Itching. Burning sensation. Redness. Blisters. Pain. ON CONTACT WITH LIQUID: FROSTBITE. (Further see Inhalation).
Cold-insulating gloves. Protective clothing.
Rinse skin with plenty of water or shower. ON FROSTBITE: rinse with plenty of water, do NOT remove clothes. Refer immediately for medical attention.
 •EYES Redness. Pain. Blurred vision. Temporary loss of vision.
Safety goggles , face shield or eye protection in combination with breathing protection.
Rinse with plenty of water (remove contact lenses if easily possible). Refer immediately for medical attention.
 •INGESTION


SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING
Evacuate danger area! Consult an expert! Personal protection: complete protective clothing including self-contained breathing apparatus. Ventilation. NEVER direct water jet on liquid.
Fireproof if in building. Separated from strong oxidants, aluminium and cylinders containing oxygen. Cool. Ventilation along the floor.

T symbol
N symbol
R: 23/25-36/37/38-48/20-68-50-59
S: 1/2-15-27-36/39-38-45-59-61
UN Hazard Class: 2.3
Signal: Danger
Cylinder-Skull-Health haz
Contains gas under pressure; may explode if heated
Toxic if inhaled (gas)
Causes skin irritation
Causes eye irritation
Causes damage to lungs, kidneys and central nervous system if inhaled
Causes damage to liver, kidneys and central nervous system through prolonged or repeated exposure if inhaled
Harms public health and the environment by destroying ozone in the upper atmosphere
SEE IMPORTANT INFORMATION ON BACK
ICSC: 0109 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.

International Chemical Safety Cards

METHYL BROMIDE ICSC: 0109
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PHYSICAL STATE; APPEARANCE:
ODOURLESS AND COLOURLESS COMPRESSED LIQUEFIED GAS.

PHYSICAL DANGERS:
The gas is heavier than air and may accumulate in lowered spaces causing a deficiency of oxygen.

CHEMICAL DANGERS:
The substance decomposes on heating producing <313353290\toxic and corrosive fumes \including hydrogen bromide, bromine and carbon oxybromide. Reacts with strong oxidants. Attacks many metals in presence of water. Attacks aluminium, zinc and magnesium with formation of pyrophoric compounds, causing fire and explosion hazard.

OCCUPATIONAL EXPOSURE LIMITS:
TLV: 1 ppm as TWA; (skin); A4 (not classifiable as a human carcinogen); (ACGIH 2009).
MAK: skin absorption (H);
Carcinogen category: 3B; BLW issued
(DFG 2009).
OSHA PEL: C 20 ppm (80 mg/m3) skin
NIOSH REL: Ca See Appendix A
NIOSH IDLH: Ca 250 ppm See: 74839


ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation and through the skin , also as a vapour!

INHALATION RISK:
On loss of containment, a harmful concentration of this gas in the air will be reached very quickly.

EFFECTS OF SHORT-TERM EXPOSURE:
The substance, as a liquid, is severely irritating to the skin and is irritating to the eyes and the respiratory tract. Inhalation may cause lung oedema (see Notes). Rapid evaporation of the liquid may cause frostbite. The substance may cause effects on the central nervous system , and kidneys. The effects may be delayed up to 48 hours. Exposure at high levels may result in death. Medical observation is indicated.

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
The substance may have effects on the central nervous system, Animal tests show that this substance possibly causes toxicity to human reproduction or development.
PHYSICAL
PROPERTIES
Boiling point: 4°C
Melting point: -94°C
Relative density (water = 1): 1.7 at 0 C
Solubility in water, g/100 ml at 20°C: 1.5
instead of Solubility in water, ml/100 ml at 20°C: 1.5 sister PI suggestion
Vapour pressure, kPa at 20°C: 1893
Relative vapour density (air = 1): 3.3
Flash point: 194°C
Auto-ignition temperature: 537°C
Explosive limits, vol% in air: 10-16
Octanol/water partition coefficient as log Pow: 1.19
ENVIRONMENTAL
DATA
Environmental Hazard placard The substance is toxic to aquatic organisms. This substance may be hazardous in the environment; special attention should be given to its impact on the ozone layer. This substance does enter the environment under normal use. Great care, however, should be given to avoid any additional release, e.g. through inappropriate disposal.
N O T E S
Depending on the degree of exposure, periodic medical examination is suggested. 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. Toxic effects on the nervous system may be delayed for several hours Immediate administration of an appropriate inhalation therapy by a doctor or a person authorized by him/her, should be considered. Turn leaking cylinder with the leak up to prevent escape of gas in liquid state. by IPCS Dec 09 - since inhal symptoms mentions delayed effects and these are not just pulmonary
NFPA Code: H 3; F 1; R 0;
ADDITIONAL INFORMATION


ICSC: 0109 METHYL BROMIDE
(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.