- Calcium dioxide
A grayish white granular material.
Stabilizer for rubber, antiseptic.
Registry Numbers and Inventories.
Swiss Giftliste 1
Japan ENCS (MITI)
Melting point, °C
Odor Threshold Odor threshold Odorless
2.919 - 2.921 g/cm3 (25 C)
Solubility in water
Hazards and Protection.
Keep well closed.
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.
Usbm-approved toxic dust respirator; general-purpose gloves; chemical safety goggles; full cover clothing.
Wear positive pressure self-contained breathing apparatus (SCBA).
Keep sparks, flames, and other sources of ignition away. Keep material out of water sources and sewers.
Decomposes in moist air.
If mixed with finely divided organic matter Mixtures with polysulfide polymers may ignite Reacts with water to produce calcium hydroxide (slaked lime).
Heat, shock or catalysts can cause violent decomp. Peroxides, inorganic.
Flood with water. Cool all affected containers with flooding quantities of water. Apply water from as far a distance as possible.
Moderate fire hazard, if hot and mixed with finely divided combustible material. Strong oxidizing agent; dangerous fire risk in contact with organic materials can increase severity of fire. Containers may explode.
Can increase severity of fire. Containers may explode.
Fire may produce irritating, corrosive and/or toxic gases.
Chronic ingestion of calcium carbonate may cause irritability, lethargy, stupor, and coma, depending on the amount and duration of ingestion. These symptoms are secondary to hypercalcemia, alkalosis, and renal impairment. Chronic ingestion of calcium carbonate in doses 4 to 60 g/day for 2 to 30 days has resulted in these symptoms; however, at doses less than 10 g/day, pre-existing factors such as renal dysfunction, concurrent thiazide therapy, volume depletion, or hyperparathyroidism were usually present in patients developing these sequelae.
Calcium chloride is more irritating than other calcium salts.
Vapors may cause injury, burns, death.
Calcium chloride may cause skin irritation or burns. Extravasation of iv infusions of calcium salts may cause cellulitis-type lesions.
Seek medical assistance.
Remove to fresh air.
Remove and isolate contaminated clothing and shoes. In case of contact with substance, immediately flush with running water for at least 20 minutes.
Flush with water for 15 min. and consult physician.
USCG CHRIS Code
Std. Transport #