Copper Oxide Red

Name:
Copper Oxide Red
Detailed information:

Chemistry name:	cuprous oxide; copper protoxide; copper hemioxide; copper suboxide
M Formula:	Cu2O
Properties:
Reddish-brown, octahedral crystals. D 5.75–6.09, mp 1235C, bp 1800C. Soluble in acids and ammonium hydroxide; insoluble in water.
Derivation:
(1) Oxidation of finely divided copper. (2) Addition of bases to cuprous chloride. (3) Action of glucose on cupric hydroxide.
Grade:
Technical, CP, 97% min (for pigments), also USN Type I (97%), USN Type II (90%).
Hazard:
Toxic by ingestion.
Use:
Copper salts, ceramics, porcelain red glaze, red glass, electroplating, antifouling paints, fungicide, catalyst, brazing preparations, photocells.