Strontium sulfate
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Description
White crystals that occur in nature as the mineral celestite. Strontium sulfate was used occasionally as a white artist pigment in England in the early 19th century. It was soon replaced by barium sulfate. Currently strontium sulfate is used as a red colorant in pyrotechnics, ceramics, and glass.
Synonyms and Related Terms
strontium white; strontium sulphate (Br.); sulfato de estroncio (Esp.); sulfate de strontium (Fr.); sulfato de estrôncio (Port.); celestite
Other Properties
Slightly soluble in concentrated acids and water. Insoluble in ethanol and dilute sulfuric acid.
| Composition | SrSO4 |
|---|---|
| CAS | 7759-02-6 |
| Melting Point | 1605 |
| Density | 3.71-3.97 |
| Molecular Weight | mol. wt. = 183.68 |
Sources Checked for Data in Record
- 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
- The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 9013
- Wikipedia, the free encyclopedia, at http://www.wikipedia.com Comment: http://en.wikipedia.org/wiki/Strontium_sulfate (Accessed Nov. 9, 2005)