A white crystalline solid.
As regenerable drying agent for gases.
Registry Numbers and Inventories.
Japan ENCS (MITI)
Melting point, °C
Decomposition point, °C
Vapor density (air=1)
Solubility in water
Hazards and Protection.
Do not store near combustible materials. Store in a cool, dry, well-ventilated area away from incompatible substances.
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid contact with clothing and other combustible materials. Avoid ingestion and inhalation.
Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.
Sweep up or absorb material, then place into a suitable clean, dry, closed container for disposal.
Stable under normal temperatures and pressures.
Substance may form explosive compound with: strong mineral acids, ammonia, butyl fluoride, dimethyl sulfoxide, ethylene oxide, hydrocarbons, organic matter, phosphorus, and trimethyl phosphite. Reacts violently with ethanol forming ethyl perchlorate.
Hydrogen chloride, oxides of magnesium.
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Dusts at sufficient concentrations can form explosive mixtures with air. Combustion generates toxic fumes. Oxidizer. Greatly increases the burning rate of combustible materials. Extinguishing media: Use water only! Do NOT use carbon dioxide or dry chemical.
Powerful oxidizing material; mixtures with combustible organic or other easily oxidizable materials. Are ignited readily by friction or heat.
Can form explosive mixture with combustible material or finely powdered metals. Increases the intensity of fires.
Liberates toxic gases when involved in fire.
Blood pressure may be decreased. Pulse may be irregular. Lethargy, hyporeflexia, weakness, and subjective feeling of thirst and heat may occur. Excessive absorption of magnesium from cathartics may result in CNS depression and seizures, most notably in renal failure patients.
May cause irritation of the digestive tract. May cause methemoglobinemia, cyanosis, convulsions, and death. Methemoglobinemia is characterized by dizziness, drowsiness, headache, breath shortness, cyanosis with bluish skin, rapid heart rate and chocolate-brown colored blood. May cause central nervous system depression.
Dust is irritating to the respiratory tract. May cause effects similar to those described for ingestion.
Causes skin irritation.
Causes eye irritation.
If victim is conscious and alert, give 2-4 cupfuls of milk or water. Get medical aid immediately.
Get medical aid immediately. Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen.
Immediately flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Get medical aid if irritation develops or persists.
Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.
USCG CHRIS Code
Std. Transport #