- CHEMICAL DANGERS:
- Adamsite (DM) corrodes iron, bronze, and brass.
- Contact with metals may evolve flammable hydrogen gas.
- EXPLOSION HAZARDS:
- Containers may explode when heated.
- FIRE FIGHTING INFORMATION:
- Adamsite (DM) is non-combustible.
- The agent itself does not burn, but it may decompose upon heating to produce corrosive and/or toxic fumes.
- 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), when used as a weapon
- First isolate in all directions: 200 ft (60 m).
- Then protect persons downwind during the day: 0.2 mi (0.4 km).
- Then protect persons downwind during the night: 0.7 mi (1.2 km).
- Large spills (involving quantities greater than 52.83 gallons (200 liters)), when used as a weapon
- First isolate in all directions: 600 ft (180 m).
- Then protect persons downwind during the day: 1.4 mi (2.3 km).
- Then protect persons downwind during the night: 3.2 mi (5.2 km).
- PHYSICAL DANGERS:
- Aerosol may collect and stay in 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.
- NFPA 704 Signal:
- Health: 2
- Flammability: 1
- Reactivity: 0
- Special:
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- SAMPLING AND ANALYSIS:
- OSHA: Not established/determined
- NIOSH: Not established/determined
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