Calcium peroxide is a pale yellow, granular or powdered solid oxidizer. Exposure to calcium peroxide can cause irritation to the skin, eyes, and respiratory tract. Ingestion should be avoided at all concentrations. Calcium peroxide is not persistent in the environment and slowly decomposes to form calcium hydroxide and oxygen. It is the peroxide (O22−) salt of Ca2+. Commercial samples can be yellowish, but the pure compound is white.
Active Oxygen, %
Active Component (CaO2), %
Bulk Density, g/L
Calcium peroxide is used in limited quantities as a hardening accelerator for sulfide rubber, as dough conditioner in the baking industry, and as a nontoxic disinfectant for seed and grain.
Proper Shipping Name: Calcium Peroxide
UN Number: 1457
EMS: F-A, S-Q
Packing: 25 woven polypropylene bags with inner polyethylene liner (UN approved), or 25 fiberboard drums.