TYPES OF HAZARD
|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.||Use 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 sensation. 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.||Wear 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.|
|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.||
Symbol: T, N; 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
Contains gas under pressure; may explode if heated
Toxic if inhaled
Causes skin irritation
Causes eye irritation
Causes damage to lungs, kidneys and central nervous system if inhaled
Causes damage to the liver, the kidneys and the central nervous system through prolonged or repeated exposure if inhaled
Harms public health and the environment by destroying ozone in the upper atmosphere
|EMERGENCY RESPONSE||SAFE STORAGE|
|NFPA Code: H3; F1; R0.||Fireproof if in building. Separated from strong oxidants, aluminium and cylinders containing oxygen. Cool. Ventilation along the floor.|
Physical State; Appearance
ODOURLESS COLOURLESS COMPRESSED LIQUEFIED GAS.
Occupational exposure limits
Routes of exposure
The substance can be absorbed into the body by inhalation and through the skin also as a vapour.
Effects of short-term exposure
Effects of long-term or repeated exposure
|PHYSICAL PROPERTIES||ENVIRONMENTAL DATA|
Boiling point: 4°C
Melting point: -94°C
Relative density (water = 1): 1.7 (liquid, 0°C)
Solubility in water, g/100ml at 20°C: 1.5
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
|The substance is toxic to aquatic organisms. This substance may be hazardous to 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 taken to avoid any additional release, for example through inappropriate disposal.|
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 by an authorized person, should be considered.
Turn leaking cylinder with the leak up to prevent escape of gas in liquid state.
See Also: Toxicological Abbreviations Methyl Bromide (EHC 166, 1995) Methyl bromide (PIM 340) Methyl bromide (FAO Meeting Report PL/1965/10/2) Methyl bromide (FAO/PL:CP/15) Methyl bromide (FAO/PL:1967/M/11/1) Methyl bromide (FAO/PL:1968/M/9/1) Methyl bromide (WHO Pesticide Residues Series 1) Methyl bromide (SIDS) Methyl Bromide (IARC Summary & Evaluation, Volume 71, 1999)