Potassium bromide
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Description
Colorless crystals or white powder. Potassium bromide is used in photography in gelatin bromide papers and in developing and intensifying baths. It is also used in process engraving and lithography. For infrared spectroscopy, potassium bromide is used to make IR transparent salt pellets.
Synonyms and Related Terms
tripotassium tribromide
Risks
- Toxic by ingestion or inhalation of large amounts.
- Skin contact may cause irritation.
- Fisher Scientific: MSDS
Physical and Chemical Properties
Soluble in water, glycerol. Slightly soluble in ethanol, ether.
| Composition | KBr |
|---|---|
| CAS | 7758-02-3 |
| Melting Point | 730 C |
| Density | 2.75 g/ml |
| Molecular Weight | mol. wt. = 119.0 |
| Boiling Point | 1435 C |
Resources and Citations
- 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 7780
- Michael McCann, Artist Beware, Watson-Guptill Publications, New York City, 1979
- Photographic chemicals: www.jetcity.com/~mrjones/chemdesc.htm