Acid Fuchsin, sodium salt
Description
A dark, green powder that forms a purplish-red solution in water. In very dilute solutions, Acid Fuchsin is used as a pH indicator, turning from red to colorless at pH 12-14. It is also used as a general, nonspecific stain for proteins.
Synonyms and Related Terms
Acid Violet 19; CI 42685; Natriumsalz der Fuchsinsure (Deut.); fuchsina cida (Esp.); fucsina acida (It.); sale di sodio (It.); acid magenta; acid rubin; acid roseine; fuchsin acid;
Other Properties
Soluble in water. Slightly soluble in ethanol.
Maximum absorption wavelength= 540-545 nm.
| Composition | C20H17N3Na2O9S3 |
|---|---|
| CAS | 3244-88-0 |
| Molecular Weight | mol. wt. = 585.55 |
Hazards and Safety
Irritating to skin.
Mallinckrodt Baker: MSDS
Additional Information
R.Wolbers, G.Landry, "The Use of Direct Reactive Fluorescent Dyes for the Characterization of Binding Media in Cross Sectional Examinations" in Preprints of the AIC Meeting in Vancouver, 1987. E.Martin, "Some Improvements in the Techniques of Analysis of Paint Media" Studies in Conservation, 22(17):63-67, 1977.
Authority
- The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 106
- J.Gordon Cook, J.Gordon Cook, Handbook of Textile Fibres:II Man-made Fibres, Merrow Publishing Co. , Durham, England
- Richard C. Wolbers, Nanette T. Sterman, Chris Stavroudis, Richard C. Wolbers, Nanette T. Sterman, Chris Stavroudis, Notes for Workshop on New Methods in the Cleaning of Paintings, J.Paul Getty Trust, Los Angeles, 1990
- Aldrich Chemical Catalog