Difference between revisions of "Sodium pyrophosphate"
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LINK: [http://www.cdc.gov/niosh/ipcsneng/neng1140.html International Chemical Safety Card] | LINK: [http://www.cdc.gov/niosh/ipcsneng/neng1140.html International Chemical Safety Card] | ||
| − | == | + | == Sources Checked for Data in Record == |
* Richard S. Lewis, ''Hawley's Condensed Chemical Dictionary'', Van Nostrand Reinhold, New York, 10th ed., 1993 | * Richard S. Lewis, ''Hawley's Condensed Chemical Dictionary'', Van Nostrand Reinhold, New York, 10th ed., 1993 | ||
Revision as of 17:40, 1 May 2016
Description
White, crystalline powder that is used as a buffer, emulsifier, sequestrant, and water softener. Sodium pyrophosphate, or TSPP, is used in de-inking newsprint, removing rust stains, scouring wool, and dyeing textiles. TSPP is also included as an ingredient in many soaps, detergents, and cleansers.
Synonyms and Related Terms
TSPP; tetrasodium pyrophosphate
Other Properties
Soluble in water. Decomposes in ethanol.
| Composition | Na4P2O7 |
|---|---|
| CAS | 7722-88-5 |
| Melting Point | 880 |
| Density | 2.45 |
| Molecular Weight | mol. wt. = 266 |
Hazards and Safety
Toxic by inhalation. Contact may cause irritation.
LINK: International Chemical Safety Card
Sources Checked for Data in Record
- 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 9377