Difference between revisions of "Phosphorus acid"
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== Authority == | == Authority == | ||
| − | * | + | * 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 7502 | * ''The Merck Index'', Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 7502 | ||
| − | * | + | * 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 |
[[Category:Materials database]] | [[Category:Materials database]] | ||
Revision as of 07:31, 24 July 2013
Description
White hygroscopic crystals that is usually marketed as a 20% aqueous solution. Phosphorus acid is a good reducing agent and a stronger acid than phosphoric acid. Phosphorous acid is primarily used as a reagent and to make phosphate salts.
Synonyms and Related Terms
orthophosphorous acid; phosphonic acid; phosphorous phlogisticated
Other Properties
Soluble in water, ethanol.
| Composition | H3PO3 |
|---|---|
| CAS | 13598-36-2 |
| Melting Point | 73 |
| Density | 1.65 |
| Molecular Weight | mol. wt. = 82.0 |
| Boiling Point | 200 (dec) |
Hazards and Safety
Corrosive on contact. Causes burns.
Fisher Scientific: MSDS
Authority
- 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 7502
- 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