Difference between revisions of "Alizarin yellow"
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== Description == | == Description == | ||
| − | Alizarin yellow crystallizes as orange-brown needles from a dilute glacial [ | + | Alizarin yellow crystallizes as orange-brown needles from a dilute glacial [[acetic%20acid|acetic acid]] solution. Developed in 1887 by R. Nietzki, it became the first azo [[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 [[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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[[[SliderGallery rightalign|alizarin yellow.jpg~Chemical structure]]] | [[[SliderGallery rightalign|alizarin yellow.jpg~Chemical structure]]] | ||
| + | == Risks == | ||
| − | == | + | Fisher Scientific: [https://fscimage.fishersci.com/msds/83808.htm MSDS] |
| + | == Physical and Chemical Properties == | ||
Soluble in water and ethanol. Slightly soluble in acetone and Cellosolve®. Insoluble in other organic solvents. | Soluble in water and ethanol. Slightly soluble in acetone and Cellosolve®. Insoluble in other organic solvents. | ||
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| − | == | + | == Resources and Citations == |
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* Ralph Mayer, ''A Dictionary of Art Terms and Techniques'', Harper and Row Publishers, New York, 1969 (also 1945 printing) | * Ralph Mayer, ''A Dictionary of Art Terms and Techniques'', Harper and Row Publishers, New York, 1969 (also 1945 printing) | ||
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* 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 | + | * Website: 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 | ||
Latest revision as of 15:19, 30 October 2020
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.)
Risks
Fisher Scientific: MSDS
Physical and Chemical 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 |
Resources and Citations
- 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: 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