Difference between revisions of "Chromium oxide hydrate"

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== Description ==
 
== Description ==
  
A transparent, green gelatinous mass. Chromium oxide hydrate, commonly called [http://cameo.mfa.org/materials/fullrecord.asp?name=viridian viridian], is used as a pigment, a tanning agent and as a mordant for textile dyeing.
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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 ==
 
== 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
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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
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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]]]
  
[[[SliderGallery rightalign|ViridianUCL.jpg~Raman|viridian632.jpg~Raman|f412sem.jpg~SEM|f412edsbw.jpg~EDS]]]
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==Risks ==
  
== Other Properties ==
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* Toxic by ingestion, inhalation and skin contact.
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* Suspected carcinogen.
  
Soluble in acid and alkali. Insoluble in water. Decomposes to chromic oxide with heat.
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==Physical and Chemical Properties==
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* Soluble in acid and alkali. Insoluble in water.  
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* Decomposes to chromic oxide with heat.
  
 
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== Hazards and Safety ==
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==Resources and Citations==
 
 
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
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* 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
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* 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
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* 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
 
* ''The Merck Index'', Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983  Comment: entry 2281

Latest revision as of 14:27, 29 May 2022

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


Risks

  • Toxic by ingestion, inhalation and skin contact.
  • Suspected carcinogen.

Physical and Chemical 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

Resources and Citations

  • 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