Difference between revisions of "Sodium pyrophosphate"
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== Description == | == Description == | ||
| − | White, crystalline powder that is used as a [ | + | White, crystalline powder that is used as a [[buffer|buffer]], [[emulsifier|emulsifier]], [[sequestrant|sequestrant]], and [[water%20softener|water softener]]. Sodium pyrophosphate, or TSPP, is used in de-inking newsprint, removing [[iron%20stain|rust stains]], scouring [[wool|wool]], and dyeing [[textile|textiles]]. TSPP is also included as an ingredient in many [[soap|soaps]], [[detergent|detergents]], and [[cleanser|cleansers]]. |
== Synonyms and Related Terms == | == Synonyms and Related Terms == | ||
Revision as of 11:19, 10 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