Contact between zinc oxide and chlorinated rubber, linseed oil, magnesium, hydrogen fluoride, aluminum + hexachloroethane, zinc chloride or phosphoric acid, and water should be avoided.
Hazardous decomposition products:
Toxic gases such as zinc oxide fumes may be released in a fire involving zinc oxide
Zinc oxide absorbs carbon dioxide from the air and forms zinc carbonate. Prolonged contact with water causes zinc oxide to slowly decompose.
Zinc oxide is not combustible.
The National Fire Protection Association has not assigned a flammability rating to zinc oxide.
1. Flash point: Not applicable
2. Auto Ignition temperature: Not applicable
3. Flammable limits: Not applicable