Nomenclature
CAS number: 1317-38-0
Copper oxide (CuO); black copper oxide; C.I. 77403; C.I. Pigment Black 15; copper(II) oxide.
CuO; mol wt 79.55.
Cu 79.88%, O 20.11%.
Description and references
Occurs in nature as the mineral tenorite. Prepn: R. Ruer, J. Kuschmann, Z. Anorg. Allg. Chem. 154, 69 (1926); O. Glemser,
H. Sauer in Handbook of Preparative Inorganic
Chemistry vol. 2, G. Brauer, Ed. (Academic
Press, New York, 2nd ed., 1965) p 1012. Soly study: A. Hayward et al., Nature 215, 730 (1967). Bioavailability study: S. Aoyagi, D. H. Baker, Poult. Sci. 72, 1075 (1993).
Review of physical properties: E. Gmelin, Indian J. Pure Appl. Phys. 30, 596-608 (1992);
of use as a nutritional supplement: D. H. Baker, J. Nutr. 129, 2278-2279 (1999).
Properties
Pure CuO (tenorite) is a steel-grey to black p-type semiconductor, mp 1330°. d 6.4. Insol in water. Slightly sol in alkalis; sol in acids and
ammonia. Heat of formation (25°): -37.1 kcal/mol.Use
As pigment in glass, ceramics, enamels, porcelain
glazes, artificial gems; in mfr of rayon, other Cu compds; in sweetening
petr gases; in galvanic electrodes; as flux in metallurgy; in correcting
Cu deficiencies in soil; as optical-glass polishing agent; in antifouling
paints, pyrotechnic compositions; as exciter in phosphor mixtures;
as catalyst for organic reactions; in high temp superconductors; as
source of oxygen; in determn of nitrogen.
Therapeutic Category
Copper supplement.
Therapeutic Category (Veterinary)
Copper supplement in ruminants.
Keywords
Replenishers/Supplements; Copper