Difference between revisions of "Chromium oxide hydrate"

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viridian; transparent chrome oxide; Pigment Green 18; CI 77289; hidróxido de cromo (Esp.); hydroxyde de chrome (Fr.); idrossido di cromo (It.); hidróxido de crómio (Port.); chromic hydrate; chromic hydroxide; chromium hydroxide; chromium hydrate; Guignet's green; chromic oxide gel; hydrous chromic oxide
 
viridian; transparent chrome oxide; Pigment Green 18; CI 77289; hidróxido de cromo (Esp.); hydroxyde de chrome (Fr.); idrossido di cromo (It.); hidróxido de crómio (Port.); chromic hydrate; chromic hydroxide; chromium hydroxide; chromium hydrate; Guignet's green; chromic oxide gel; hydrous chromic oxide
  
[[[SliderGallery rightalign|ViridianUCL.jpg~Raman|viridian632.jpg~Raman|f412sem.jpg~SEM|f412edsbw.jpg~EDS]]]
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[[[SliderGallery rightalign|Viridian, chromium oxide green (bottle 405).TIF~FTIR (MFA)|ViridianUCL.jpg~Raman|viridian632.jpg~Raman|f412sem.jpg~SEM|f412edsbw.jpg~EDS]]]
  
 
== Other Properties ==
 
== Other Properties ==

Latest revision as of 10:29, 1 October 2019

Viridian

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; hidróxido de cromo (Esp.); hydroxyde de chrome (Fr.); idrossido di cromo (It.); hidróxido de crómio (Port.); chromic hydrate; chromic hydroxide; chromium hydroxide; chromium hydrate; Guignet's green; chromic oxide gel; hydrous chromic oxide

FTIR (MFA)

Viridian, chromium oxide green (bottle 405).TIF

Raman

ViridianUCL.jpg

Raman

Viridian632.jpg

SEM

F412sem.jpg

EDS

F412edsbw.jpg


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..

Sources Checked for Data in Record

  • Reed Kay, The Painter's Guide To Studio Methods and Materials, Prentice-Hall, Inc., Englewood Cliffs, NJ, 1983
  • Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
  • 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