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 == | ||
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[[[SliderGallery rightalign|aaiTSPP.jpg~FTIR]]] | [[[SliderGallery rightalign|aaiTSPP.jpg~FTIR]]] | ||
| − | == | + | == Risks == |
| + | |||
| + | * Toxic by inhalation. | ||
| + | * Contact may cause irritation. | ||
| + | * ThermoFisher: [https://www.fishersci.com/store/msds?partNumber=AC448065000&productDescription=SODIUM+PYROPHOSPHATE+DEC+500GR&vendorId=VN00032119&countryCode=US&language=en SDS] | ||
| + | |||
| + | == Physical and Chemical Properties == | ||
Soluble in water. Decomposes in ethanol. | Soluble in water. Decomposes in ethanol. | ||
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|- | |- | ||
! scope="row"| Melting Point | ! scope="row"| Melting Point | ||
| − | | 880 | + | | 880 C |
|- | |- | ||
! scope="row"| Density | ! scope="row"| Density | ||
| − | | 2.45 | + | | 2.45 g/ml |
|- | |- | ||
! scope="row"| Molecular Weight | ! scope="row"| Molecular Weight | ||
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| − | == | + | ==Resources and Citations== |
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* 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 | ||
Latest revision as of 10:19, 2 June 2022
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
Risks
- Toxic by inhalation.
- Contact may cause irritation.
- ThermoFisher: SDS
Physical and Chemical Properties
Soluble in water. Decomposes in ethanol.
| Composition | Na4P2O7 |
|---|---|
| CAS | 7722-88-5 |
| Melting Point | 880 C |
| Density | 2.45 g/ml |
| Molecular Weight | mol. wt. = 266 |
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 9377