Difference between revisions of "Gentian violet"
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== Description == | == Description == | ||
| − | A dark green, metallic powder that forms a deep violet aqueous solution. Gentian violet is a synthetic triphenylmethane dye. It used to color wood, [http://cameo.mfa.org/materials/fullrecord.asp?name=silk silk], [http://cameo.mfa.org/materials/fullrecord.asp?name=leather leather], and [http://cameo.mfa.org/materials/fullrecord.asp?name=paper paper]. Gentian violet is also used in [http://cameo.mfa.org/materials/fullrecord.asp?name=ballpoint | + | A dark green, metallic powder that forms a deep violet aqueous solution. Gentian violet is a synthetic triphenylmethane dye. It used to color wood, [http://cameo.mfa.org/materials/fullrecord.asp?name=silk silk], [http://cameo.mfa.org/materials/fullrecord.asp?name=leather leather], and [http://cameo.mfa.org/materials/fullrecord.asp?name=paper paper]. Gentian violet is also used in [http://cameo.mfa.org/materials/fullrecord.asp?name=ballpoint%20ink ballpoint inks], typewriter ribbons, [http://cameo.mfa.org/materials/fullrecord.asp?name=printing%20ink printing inks], and as a biological stain and acid-base indicator. |
[[File:Crystal.violet_H2O_abs.ems.jpg|thumb|Absorption spectrum]] | [[File:Crystal.violet_H2O_abs.ems.jpg|thumb|Absorption spectrum]] | ||
Revision as of 11:03, 13 June 2013
Description
A dark green, metallic powder that forms a deep violet aqueous solution. Gentian violet is a synthetic triphenylmethane dye. It used to color wood, silk, leather, and paper. Gentian violet is also used in ballpoint inks, typewriter ribbons, printing inks, and as a biological stain and acid-base indicator.
Synonyms and Related Terms
aniline violet; crystal violet; CI 42555; hexamethyl-p-rosaniline chloride; Basic Violet ; Solvent Violet 9; Pigment Violet 39 (phosphomolybdic salt); violeta genciana (Esp.); violeta de genciana (Port.)
Other Properties
Soluble in water, chloroform. Lightly soluble in ethanol, glycerol. Insoluble in ether.
| Composition | C25H30ClN3 |
|---|---|
| CAS | 548-62-9 |
| Melting Point | 215 |
| Molecular Weight | mol. wt. = 408 |
Hazards and Safety
Toxic by ingestion (1 ounce may be lethal). Inhalation and contact cause irritation.
Mallinckrodt Baker: MSDS
Authority
- Richard S. Lewis, Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
- The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 4401; CAS=8004-87-3
- Colour Index International online at www.colour-index.org Comment: CAS=548-62-9
- Sigma Dyes, Stains and Natural Pigments, Infrared Library, Nicolet, 1991-1995 Comment: OMNIC: formula= C25H30ClN3, CAS= 548-62-9