- Magnesium dioxide
A white powder.
Used in medicine, and as a bleaching agent.
Registry Numbers and Inventories.
Melting point, °C
222 - 225
~3.0 g/cm3 (20 C)
Solubility in water
Hazards and Protection.
Store in a cool, dry location in a tightly sealed container.
All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.
Wear protective gloves and clothing and safety 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.
Keep sparks, flames, and other sources of ignition away. Keep material out of water sources and sewers.
Flood with water. Cool all affected containers with flooding quantities of water. Apply water from as far a distance as possible.
Oxidizing material. Contact with combustible materials may cause fire.
These substances will accelerate burning when involved in a fire. Some may decompose explosively when heated or involved in a fire. May explode from heat or contamination. Some will react explosively with hydrocarbons (fuels). May ignite combustibles (wood, paper, oil, clothing, etc.). Containers may explode when heated. Runoff may create fire or explosion hazard.
Fire may produce irritating, corrosive and/or toxic gases.
May causes irritation. May be harmful if ingested.
May causes irritation. May be harmful if inhaled.
May causes irritation. May be harmful if absorbed.
May cause irritation.
Wash mouth out with water, provided that the person is concious. Seek medical attention.
Remove to fresh air. If no breathing, give artificial respiration. If breathing is difficult, give oxygen.
Immediately wash skin with soap and large amounts of water.
Flush eyes with copious amounts of water for at least 15 minutes. Seek medical attention.
Std. Transport #