Trifluoromethane

CAS RN:75-46-7

DOT Emergency Guidelines

Go to Guide 120
Go to Guide 126

GUIDE 120
GASES - INERT (Including Refrigerated Liquids)
POTENTIAL HAZARDS
HEALTH
· Vapors may cause dizziness or asphyxiation without warning.
· Vapors from liquefied gas are initially heavier than air and spread along ground.
· Contact with gas or liquefied gas may cause burns, severe injury and/or frostbite.
FIRE OR EXPLOSION
· Non-flammable gases.
· Containers may explode when heated.
· Ruptured cylinders may rocket.
PUBLIC SAFETY
· CALL EMERGENCY RESPONSE Telephone Number on Shipping Paper first. If Shipping Paper not available or no answer, refer to appropriate telephone number listed on the inside back cover.
· As an immediate precautionary measure, isolate spill or leak area for at least 100 meters (330 feet) in all directions.
· Keep unauthorized personnel away.
· Stay upwind, uphill and/or upstream.
· Many gases are heavier than air and will spread along ground and collect in low or confined areas (sewers, basements, tanks).
· Ventilate closed spaces before entering.
PROTECTIVE CLOTHING
· Wear positive pressure self-contained breathing apparatus (SCBA).
· Structural firefighters' protective clothing will only provide limited protection.
· Always wear thermal protective clothing when handling refrigerated/cryogenic liquids or solids.
EVACUATION
Large Spill
· Consider initial downwind evacuation for at least 100 meters (330 feet).
Fire
· If tank, rail car or tank truck is involved in a fire, ISOLATE for 800 meters (1/2 mile) in all directions; also, consider initial evacuation for 800 meters (1/2 mile) in all directions.
EMERGENCY RESPONSE
FIRE
· Use extinguishing agent suitable for type of surrounding fire.
· Move containers from fire area if you can do it without risk.
· Damaged cylinders should be handled only by specialists.
Fire involving Tanks
· Fight fire from maximum distance or use unmanned hose holders or monitor nozzles.
· Cool containers with flooding quantities of water until well after fire is out.
· Do not direct water at source of leak or safety devices; icing may occur.
· Withdraw immediately in case of rising sound from venting safety devices or discoloration of tank.
· ALWAYS stay away from tanks engulfed in fire.
SPILL OR LEAK
· Do not touch or walk through spilled material.
· Stop leak if you can do it without risk.
· Use water spray to reduce vapors or divert vapor cloud drift. Avoid allowing water runoff to contact spilled material.
· Do not direct water at spill or source of leak.
· If possible, turn leaking containers so that gas escapes rather than liquid.
· Prevent entry into waterways, sewers, basements or confined areas.
· Allow substance to evaporate.
· Ventilate the area.
CAUTION: When in contact with refrigerated/cryogenic liquids, many materials become brittle and are likely to break without warning.
FIRST AID
· Ensure that medical personnel are aware of the material(s) involved and take precautions to protect themselves.
· Move victim to fresh air.
· Call 911 or emergency medical service.
· Give artificial respiration if victim is not breathing.
· Administer oxygen if breathing is difficult.
· Clothing frozen to the skin should be thawed before being removed.
· In case of contact with liquefied gas, thaw frosted parts with lukewarm water.
· Keep victim calm and warm.
ERG 2016

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GUIDE 126
GASES - COMPRESSED or LIQUEFIED (Including Refrigerant Gases)
POTENTIAL HAZARDS
FIRE OR EXPLOSION
· Some may burn but none ignite readily.
· Containers may explode when heated.
· Ruptured cylinders may rocket.
HEALTH
· Vapors may cause dizziness or asphyxiation without warning.
· Vapors from liquefied gas are initially heavier than air and spread along ground.
· Contact with gas or liquefied gas may cause burns, severe injury and/or frostbite.
· Fire may produce irritating, corrosive and/or toxic gases.
PUBLIC SAFETY
· CALL EMERGENCY RESPONSE Telephone Number on Shipping Paper first. If Shipping Paper not available or no answer, refer to appropriate telephone number listed on the inside back cover.
· As an immediate precautionary measure, isolate spill or leak area for at least 100 meters (330 feet) in all directions.
· Keep unauthorized personnel away.
· Stay upwind, uphill and/or upstream.
· Many gases are heavier than air and will spread along ground and collect in low or confined areas (sewers, basements, tanks).
· Ventilate closed spaces before entering.
PROTECTIVE CLOTHING
· Wear positive pressure self-contained breathing apparatus (SCBA).
· Wear chemical protective clothing that is specifically recommended by the manufacturer. It may provide little or no thermal protection.
· Structural firefighters' protective clothing will only provide limited protection.
EVACUATION
Large Spill
· Consider initial downwind evacuation for at least 500 meters (1/3 mile).
Fire
· If tank, rail car or tank truck is involved in a fire, ISOLATE for 800 meters (1/2 mile) in all directions; also, consider initial evacuation for 800 meters (1/2 mile) in all directions.
EMERGENCY RESPONSE
FIRE
· Use extinguishing agent suitable for type of surrounding fire.
Small Fire
· Dry chemical or CO2.
Large Fire
· Water spray, fog or regular foam.
· Move containers from fire area if you can do it without risk.
· Damaged cylinders should be handled only by specialists.
Fire involving Tanks
· Fight fire from maximum distance or use unmanned hose holders or monitor nozzles.
· Cool containers with flooding quantities of water until well after fire is out.
· Do not direct water at source of leak or safety devices; icing may occur.
· Withdraw immediately in case of rising sound from venting safety devices or discoloration of tank.
· ALWAYS stay away from tanks engulfed in fire.
· Some of these materials, if spilled, may evaporate leaving a flammable residue.
SPILL OR LEAK
· Do not touch or walk through spilled material.
· Stop leak if you can do it without risk.
· Do not direct water at spill or source of leak.
· Use water spray to reduce vapors or divert vapor cloud drift. Avoid allowing water runoff to contact spilled material.
· If possible, turn leaking containers so that gas escapes rather than liquid.
· Prevent entry into waterways, sewers, basements or confined areas.
· Allow substance to evaporate.
· Ventilate the area.
FIRST AID
· Ensure that medical personnel are aware of the material(s) involved and take precautions to protect themselves.
· Move victim to fresh air.
· Call 911 or emergency medical service.
· Give artificial respiration if victim is not breathing.
· Administer oxygen if breathing is difficult.
· Remove and isolate contaminated clothing and shoes.
· In case of contact with liquefied gas, thaw frosted parts with lukewarm water.
· Keep victim calm and warm.
ERG 2016

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Find more information on this substance at: Hazardous Substances Data Bank , TOXMAP , TOXNET , PubMed