Methyl bromide
Properties
of methyl bromide is described
below
PHYSICAL
STATE; APPEARANCE:
ODOURLESS AND COLOURLESS COMPRESSED LIQUEFIED GAS.
PHYSICAL DANGERS:
The gas is heavier than air.
CHEMICAL DANGERS:
The substance decomposes on heating and on burning producing 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: 5 ppm; 20 mg/m3 (ACGIH 1993-1994).
OSHA PEL: C 20 ppm (80 mg/m3) skin
NIOSH REL: Ca
NIOSH IDLH: Potential occupational carcinogen 250 ppm
ROUTES OF EXPOSURE:
The substance can be
absorbed into the body by inhalation and through the skin , also as a
vapour!
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 irritates the eyes, the skin and the respiratory
tract. Inhalation of the substance may cause lung oedema (see Notes).
Rapid evaporation of the liquid may cause frostbite. The substance may
cause effects on the central nervous system, kidneys and lungs. Exposure
to high concentrations may result in death. The effects may be delayed.
EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
The substance may have effects on the nervous system, kidneys,
heart, liver and lungs.
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units
For more information see website:
http://www.cdc.gov/niosh/ipcsneng/neng0109.html
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