Difference between revisions of "Alizarin yellow"
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== Description == | == Description == | ||
| − | Alizarin yellow crystallizes as orange-brown needles from a dilute glacial [http://cameo.mfa.org/materials/fullrecord.asp?name=acetic | + | Alizarin yellow crystallizes as orange-brown needles from a dilute glacial [http://cameo.mfa.org/materials/fullrecord.asp?name=acetic%20acid acetic acid] solution. Developed in 1887 by R. Nietzki, it became the first azo [http://cameo.mfa.org/materials/fullrecord.asp?name=mordant%20dye mordant dye]. Alizarin yellow produces a dull yellow-brown, transparent pigment when precipitated on an inert base that has poorer color stability than [http://cameo.mfa.org/materials/fullrecord.asp?name=alizarin%2C%20synthetic alizarin]. The sodium salt of alizarin yellow is used as an aqueous acid-base indicator. It changes from yellow at pH 10.2 to red at pH 12.0. |
== Synonyms and Related Terms == | == Synonyms and Related Terms == | ||
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== Other Properties == | == Other Properties == | ||
| − | Soluble in water and ethanol. Slightly soluble in acetone and | + | Soluble in water and ethanol. Slightly soluble in acetone and Cellosolve®. Insoluble in other organic solvents. |
{| class="wikitable" | {| class="wikitable" | ||
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== Authority == | == Authority == | ||
| − | * | + | * Ralph Mayer, ''A Dictionary of Art Terms and Techniques'', Harper and Row Publishers, New York, 1969 (also 1945 printing) |
| − | * | + | * A.Scharff, 'Synthetic dyestuffs for textiles and their fastness to washing', ''ICOM-CC Preprints'' Lyon, Getty Conservation Institute, Los Angeles, 1999 Comment: p.654-660 |
* Colour Index International online at www.colour-index.org Comment: developer, date, CAS#=584-42-9, structure verified | * Colour Index International online at www.colour-index.org Comment: developer, date, CAS#=584-42-9, structure verified | ||
| Line 39: | Line 39: | ||
* Sigma Dyes, Stains and Natural Pigments, Infrared Library, Nicolet, 1991-1995 Comment: CAS#=2243-76-7 | * Sigma Dyes, Stains and Natural Pigments, Infrared Library, Nicolet, 1991-1995 Comment: CAS#=2243-76-7 | ||
| − | * | + | * Website address 1 Comment: www.straw.com/sig/dyehist |
* Art and Architecture Thesaurus Online, http://www.getty.edu/research/tools/vocabulary/aat/, J. Paul Getty Trust, Los Angeles, 2000 | * Art and Architecture Thesaurus Online, http://www.getty.edu/research/tools/vocabulary/aat/, J. Paul Getty Trust, Los Angeles, 2000 | ||
Revision as of 06:49, 24 July 2013
Description
Alizarin yellow crystallizes as orange-brown needles from a dilute glacial acetic acid solution. Developed in 1887 by R. Nietzki, it became the first azo mordant dye. Alizarin yellow produces a dull yellow-brown, transparent pigment when precipitated on an inert base that has poorer color stability than alizarin. The sodium salt of alizarin yellow is used as an aqueous acid-base indicator. It changes from yellow at pH 10.2 to red at pH 12.0.
Synonyms and Related Terms
Mordant Yellow 1; CI 14030; alizarine yellow R; p-nitrophenylazosalicylate acid; 2-hydroxy-5-[(4-nitrophenyl)azo]benzoic acid; amarilo de alizarina (Esp.); jaune d'alizarine (Fr.); giallo d'alizarina (It.); amarelo de alizarina (Port.)
Other Properties
Soluble in water and ethanol. Slightly soluble in acetone and Cellosolve®. Insoluble in other organic solvents.
| Composition | C13H9N3O5 |
|---|---|
| CAS | 584-42-9 |
| Molecular Weight | mol. wt. = 309.20 |
Hazards and Safety
Fisher Scientific: MSDS
Authority
- Ralph Mayer, A Dictionary of Art Terms and Techniques, Harper and Row Publishers, New York, 1969 (also 1945 printing)
- A.Scharff, 'Synthetic dyestuffs for textiles and their fastness to washing', ICOM-CC Preprints Lyon, Getty Conservation Institute, Los Angeles, 1999 Comment: p.654-660
- Colour Index International online at www.colour-index.org Comment: developer, date, CAS#=584-42-9, structure verified
- Sigma Dyes, Stains and Natural Pigments, Infrared Library, Nicolet, 1991-1995 Comment: CAS#=2243-76-7
- Website address 1 Comment: www.straw.com/sig/dyehist
- Art and Architecture Thesaurus Online, http://www.getty.edu/research/tools/vocabulary/aat/, J. Paul Getty Trust, Los Angeles, 2000