Copper(I) oxide or cuprous oxide is the inorganic compound with the formula Cu2O. It is one of the principal oxides of copper, the other being or copper (II) oxide or cupric oxide (CuO). This red-coloured solid is a component of some antifouling paints. The compound can appear either yellow or red, depending on the size of the particles. Copper(I) oxide is found as the reddish mineral cuprite.

As pigment
A fungicide
An antifouling agent for marine paints

Minimum Assay: >97.0%
Molecular Formula: Cu2O
Molecular Weight: 143.09
Melting Point: 1235°C
Boiling Point: 1800°C
Assay as Cu(Compexometric): >86.0%
Sieve Residue 325 mesh: <0.5%
Particle Size: 3-4 microns

Hazard Class: 9

Packing Group: 3

Hazard Phrases: Causes serious eye irritation. Very toxic to aquatic life with long lasting effects.

Prec Phrases: Avoid breathing dust/fume/gas/mist/vapours/spray. IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell. Rinse mouth. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.



Cas No: 1317-39-1
Einecs No: 215-270-7
UN3077