Calcium peroxide

  • Calcium dioxide
Formula
CaO2
Structure
Description
A grayish white granular material.
Uses
Stabilizer for rubber, antiseptic.

Registry Numbers and Inventories.
CAS
1305-79-9
EC (EINECS/ELINCS)
215-139-4
RTECS
EW3865000
UN (DOT)
1457
Merck
12,1736
Beilstein/Gmelin
42333 (G)
Swiss Giftliste 1
G-8247
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
CaO2
Formula mass
72.07
Melting point, °C
692
Odor Threshold Odor threshold Odorless
Density
2.919 - 2.921 g/cm3 (25 C)
Solubility in water
Insoluble

Hazards and Protection.
Storage
Keep well closed.
Handling
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.
Protection
Usbm-approved toxic dust respirator; general-purpose gloves; chemical safety goggles; full cover clothing.
Respirators
Wear positive pressure self-contained breathing apparatus (SCBA).
Small spills/leaks
Keep sparks, flames, and other sources of ignition away. Keep material out of water sources and sewers.
Stability
Decomposes in moist air.
Incompatibilities
If mixed with finely divided organic matter Mixtures with polysulfide polymers may ignite Reacts with water to produce calcium hydroxide (slaked lime).
Decomposition
Heat, shock or catalysts can cause violent decomp. Peroxides, inorganic.

Fire.
Fire fighting
Flood with water. Cool all affected containers with flooding quantities of water. Apply water from as far a distance as possible.
Fire potential
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.
Hazards
Can increase severity of fire. Containers may explode.
Combustion products
Fire may produce irritating, corrosive and/or toxic gases.
 
Special
O

Health.
Poison_Class
3
Exposure effects
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.
   Ingestion
Calcium chloride is more irritating than other calcium salts.
   Inhalation
Vapors may cause injury, burns, death.
   Skin
Calcium chloride may cause skin irritation or burns. Extravasation of iv infusions of calcium salts may cause cellulitis-type lesions.
   Eyes
See Skin.

First aid
 
   Ingestion
Seek medical assistance.
   Inhalation
Remove to fresh air.
   Skin
Remove and isolate contaminated clothing and shoes. In case of contact with substance, immediately flush with running water for at least 20 minutes.
   Eyes
Flush with water for 15 min. and consult physician.

Transport.
UN number
1457
Response guide
Hazard class
5.1
Packing Group
II
 
USCG CHRIS Code
CCP
 
Std. Transport #
4918717