Difference between revisions of "Munjistin"
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H.Schweppe, J.Winter, "Madder and Alizarin", ''Artists Pigments'', Volume 3, E. West FitzHugh (ed.), Oxford University Press: Oxford, 1997. | H.Schweppe, J.Winter, "Madder and Alizarin", ''Artists Pigments'', Volume 3, E. West FitzHugh (ed.), Oxford University Press: Oxford, 1997. | ||
| − | == | + | == Sources Checked for Data in Record == |
* ''Artists' Pigments: A Handbook of their History and Characteristics'', Elisabeth West FitzHugh, Oxford University Press, Oxford, Vol. 3, 1997 Comment: H.Schweppe, J.Winter, "Madder and Alizarin" | * ''Artists' Pigments: A Handbook of their History and Characteristics'', Elisabeth West FitzHugh, Oxford University Press, Oxford, Vol. 3, 1997 Comment: H.Schweppe, J.Winter, "Madder and Alizarin" | ||
Revision as of 14:04, 1 May 2016
Description
Orange leaflet crystals. Munjistin is one of the natural colorants extracted from madder and munjeet roots. It dissolves in alkalis to give a red solution and turns yellow in acids. Munjistin precipitates with alum to give a bright orange color. It has been used with an alum mordant to dye wool orange.
Synonyms and Related Terms
1,3-dihydroxyanthraquinone-2-carboxylic acid; CI 75370; munjistina (Esp., Port.)
Other Properties
Soluble in boiling water, ether, benzene, hot glacial acetic acid. Slightly soluble in cold water.
| Melting Point | 232-233 |
|---|
Additional Information
H.Schweppe, J.Winter, "Madder and Alizarin", Artists Pigments, Volume 3, E. West FitzHugh (ed.), Oxford University Press: Oxford, 1997.
Sources Checked for Data in Record
- Artists' Pigments: A Handbook of their History and Characteristics, Elisabeth West FitzHugh, Oxford University Press, Oxford, Vol. 3, 1997 Comment: H.Schweppe, J.Winter, "Madder and Alizarin"