Copper (II) oxide is commonly used as a blue flame colorant, and has also been used in dragon’s eggs, and also ignition compositions with silicon and lead (IV) oxide.

Specifications

Purity: 98.5%
Particle size: ~300 mesh (<54µ)
Colour: Black
Odour: Odourless
Impurities: Fe (0.01%), Pb (0.05%), Zn (0.05%), Na (0.3%), SiO2 (0.3%), Moisture (0.2%), all maximums.

Safety

Warning
Harmful if swallowed.
General: Read label before use. Keep out of reach of children. If medical advice is needed, have product container or label at hand.
Prevention: Wash thoroughly after handling. Do no eat, drink or smoke when using this product.
Response: IF SWALLOWED: Call a POISON CENTER or doctor if you feel unwell. Rinse mouth.
Disposal: Dispose of contents/container in accordance with Environmental Protection and Hazardous Waste Regulations.