- CHEMICAL DANGERS:
- Chloropicrin decomposes explosively when heated above 234°F.
- Liquid chloropicrin (PS) is unstable with high temperatures or severe shock, particularly when involving containers of greater than 30 gallons capacity.
- Liquid chloropicrin (PS) will attack some forms of plastics, rubber, and coatings.
- Decomposition of chloropicrin (PS) may release toxic gases, such as nitrogen oxides, phosgene, nitrosyl chloride, chlorine, and carbon monoxide. See the emergency response cards for phosgene, nitrosyl chloride, chlorine, and carbon monoxide.
- Chloropicrin is relatively inert chemically and non-corrosive to copper, brass, and bronze; but it attacks iron, zinc, and other light metals.
- Contact with metals may evolve flammable hydrogen gas.
- Chloropicrin reacts violently with aniline, sodium methoxide, and propargyl bromide. It also reacts with 2-bromopropyne and strong oxidants.
- EXPLOSION HAZARDS:
- Contact with strong oxidants may cause fires or explosions.
- Chloropicrin (PS) may explode when it is heated under confinement.
- Containers may explode when heated.
- Upper and lower explosive (flammable) limits in air are not available for chloropicrin (PS).
- FIRE FIGHTING INFORMATION:
- Chloropicrin (PS) is non-combustible.
- The agent itself does not burn, but it may decompose upon heating to produce corrosive and/or toxic fumes.
- Explosive decomposition may occur under fire conditions.
- Fire may produce irritating, corrosive, and/or toxic gases.
- The agent may be an oxidant, and it may ignite combustibles (wood, paper, oil, clothing, etc.).
- For small fires, use dry chemical, carbon dioxide, or water spray.
- For large fires, use dry chemical, carbon dioxide, alcohol-resistant foam, or water spray. Move containers from the fire area if it is possible to do so without risk to personnel. Dike fire control water for later disposal; do not scatter the material.
- For fire involving tanks or car/trailer loads, fight the fire from maximum distance or use unmanned hose holders or monitor nozzles. Do not get water inside containers. Cool containers with flooding quantities of water until well after the fire is out. Withdraw immediately in case of rising sound from venting safety devices or discoloration of tanks. Always stay away from tanks engulfed in fire.
- Run-off from fire control or dilution water may be corrosive and/or toxic, and it may cause pollution.
- If the situation allows, control and properly dispose of run-off (effluent).
- INITIAL ISOLATION AND PROTECTIVE ACTION DISTANCES:
- If a tank, rail car, or tank truck is involved in a fire, isolate it for 0.5 mi (800 m) in all directions; also consider initial evacuation for 0.5 mi (800 m) in all directions.
- Small spills (involving the release of approximately 52.83 gallons (200 liters) or less)
- First isolate in all directions: 200 ft (60 m).
- Then protect persons downwind during the day: 0.3 mi (0.4 km).
- Then protect persons downwind during the night: 0.5 mi (0.8 km).
- Large spills (involving quantities greater than 52.83 gallons (200 liters))
- First isolate in all directions: 700 ft (210 m).
- Then protect persons downwind during the day: 1.2 mi (1.9 km).
- Then protect persons downwind during the night: 2.2 mi (3.6 km).
- PHYSICAL DANGERS:
- Vapors are heavier than air. They will spread along the ground and collect and stay in poorly-ventilated, low-lying, or confined areas (e.g., sewers, basements, and tanks).
- Hazardous concentrations may develop quickly in enclosed, poorly-ventilated, or low-lying areas. Keep out of these areas. Stay upwind.
- Large volumes of this chemical may be shock sensitive.
- NFPA 704 Signal:
- Health: 4
- Flammability: 0
- Reactivity: 3
- Special:
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- SAMPLING AND ANALYSIS:
- OSHA: Not established/determined
- NIOSH: Not established/determined
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