Chromium oxide hydrate
Revision as of 12:26, 27 April 2013 by (username removed)
Description
A transparent, green gelatinous mass. Chromium oxide hydrate, commonly called viridian, is used as a pigment, a tanning agent and as a mordant for textile dyeing.
Synonyms and Related Terms
viridian; transparent chrome oxide; Pigment Green 18; CI 77289; hidrxido de cromo (Esp.); hydroxyde de chrome (Fr.); idrossido di cromo (It.); hidrxido de crmio (Port.); chromic hydrate; chromic hydroxide; chromium hydroxide; chromium hydrate; Guignet's green; chromic oxide gel; hydrous chromic oxide
Other Properties
Soluble in acid and alkali. Insoluble in water. Decomposes to chromic oxide with heat.
| Composition | Cr(OH)3 |
|---|---|
| Molecular Weight | mol. wt. = 103.02 |
Hazards and Safety
Toxic by ingestion, inhalation and skin contact. Suspected carcinogen..
Authority
- Reed Kay, Reed Kay, The Painter's Guide To Studio Methods and Materials, Prentice-Hall, Inc., Englewood Cliffs, NJ, 1983
- Richard S. Lewis, Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
- Michael McCann, Michael McCann, Artist Beware, Watson-Guptill Publications, New York City, 1979
- The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 2281