Magnesium nitrate hexahydrate
White crystalline powder
Registry Numbers and Inventories.
S 17 24/25
Japan ENCS (MITI)
MgN2O6 . 6H2O
Melting point, °C
Vapor density (air=1)
Odor Threshold Odor threshold Odorless
1.464 g/cm3 (60 C)
Solubility in water
Heat of fusion
Hazards and Protection.
Do not store near combustible materials. Store in a cool, dry, well-ventilated area away from incompatible substances. Keep containers tightly closed.
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid contact with clothing and other combustible materials. Avoid ingestion and inhalation.
Wear appropriate protective gloves, clothing and goggles.
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.
Clean up spills immediately, using the appropriate protective equipment. Sweep up or absorb material, then place into a suitable clean, dry, closed container for disposal. Avoid generating dusty conditions. Provide ventilation.
Stable under normal temperatures and pressures.
Strong oxidizers and reducing agents. Substance undergoes violent decomposition when in contact with dimethyl formamide.
Nitrogen oxides, oxides of magnesium.
Small Fires: Use water. Do not use dry chemicals or foams. carbon dioxide or Halon may provide limited control. Large Fires: Flood fire area with water from a distance.
These substances will accelerate burning when involved in a fire.
May explode from heat or contamination. May react explosively with hydrocarbons (fuels). May ignite combustibles.
Fire may produce irritating, corrosive and/or toxic gases.
Repeated exposure may cause kidney damage and digestive tract abnormalities.
May cause gastrointestinal irritation with nausea, vomiting and diarrhea. May cause methemoglobinemia, cyanosis, convulsions, and death. Excessive amounts of magnesium may cause central nervous system depression, respiratory paralysis, and cardiac arrest.
Dust is irritating to the respiratory tract. May cause methemoglobinemia, cyanosis, convulsions, tachycardia, dyspnea, and death. May cause effects similar to those described for ingestion.
May cause moderate skin irritation.
May cause moderate eye irritation.
If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. 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. Wash clothing before reuse.
In case of contact with substance, immediately flush with running water for at least 20 minutes.
USCG CHRIS Code
2834 29 80