Arsenic disulfide
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- Soluble in acids and alkalis. Insoluble in water.
- Monoclinic crystals, irregular; isotropic; pleochroic with high birefringence and straight extinction.
| Composition | As2S2 |
|---|---|
| CAS | 56320-22-0 |
| Mohs Hardness | 1.5 |
| Melting Point | 307-320 C |
| Density | 3.56-3.59 g/ml |
| Molecular Weight | mol. wt. = 427.95 |
| Refractive Index | 2.538, 2.684, 2.704 |
| Boiling Point | 565 C |
Resources and Citations
- Nicholas Eastaugh, Valentine Walsh, Tracey Chaplin, Ruth Siddall, Pigment Compendium, Elsevier Butterworth-Heinemann, Oxford, 2004
- External source or communication Comment: Submitted information: Ashok Roy, November 2007
- R. J. Gettens, G.L. Stout, Painting Materials, A Short Encyclopaedia, Dover Publications, New York, 1966
- Ralph Mayer, A Dictionary of Art Terms and Techniques, Harper and Row Publishers, New York, 1969 (also 1945 printing)
- Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
- Susan E. Schur, Conservation Terminology: A review of Past & Current Nomenclature of Materials, Technology and Conservation, Spring (p.34-39); Summer (p.35-38); Fall (p.25-36), 1985
- Van Nostrand's Scientific Encyclopedia, Douglas M. Considine (ed.), Van Nostrand Reinhold, New York, 1976
- Random House, Webster's Encyclopedic Unabridged Dictionary of the English Language, Grammercy Book, New York, 1997
- The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 834
- Website address 1 Comment: pigments through the ages -http://webexhibits.org/pigments/indiv/technical/realgar.html
Record content reviewed by EU-Artech, November 2007.