Difference between revisions of "Sodium acid pyrophosphate"
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SAPP; disodium dihydrogen pyrophosphate; disodium pyrophosphate | SAPP; disodium dihydrogen pyrophosphate; disodium pyrophosphate | ||
| − | == | + | ==Risks== |
| + | |||
| + | * EChemi: [https://www.echemi.com/sds/sodium-acid-pyrophosphate-pd20150901030.html SDS] | ||
| + | |||
| + | ==Physical and Chemical Properties== | ||
Soluble in water. | Soluble in water. | ||
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|- | |- | ||
! scope="row"| Melting Point | ! scope="row"| Melting Point | ||
| − | | 220 (dec) | + | | 220 C (dec) |
|- | |- | ||
! scope="row"| Density | ! scope="row"| Density | ||
| − | | 1.862 | + | | 1.862 g/ml |
|} | |} | ||
| − | == | + | ==Resources and Citations== |
| − | M.Roberts, D.Etherington, ''Bookbinding and the Conservation of Books: a Dictionary of Descriptive Terminology'', U.S. Government Printing Office, Washington, DC, 1982. | + | * M.Roberts, D.Etherington, ''Bookbinding and the Conservation of Books: a Dictionary of Descriptive Terminology'', U.S. Government Printing Office, Washington, DC, 1982. |
[[Category:Materials database]] | [[Category:Materials database]] | ||
Latest revision as of 15:19, 31 May 2022
Description
White, crystalline powder. Sodium acid pyrophosphate, SAPP, is used as a mold inhibitor in paper (Roberts and Etherington 1982). It is also used as a buffer, and sequestrant. SAPP is used as an ingredient in baking powders and metal cleaners.
Synonyms and Related Terms
SAPP; disodium dihydrogen pyrophosphate; disodium pyrophosphate
Risks
- EChemi: SDS
Physical and Chemical Properties
Soluble in water.
| Composition | Na2H2P2O7 - 6H2O |
|---|---|
| Melting Point | 220 C (dec) |
| Density | 1.862 g/ml |
Resources and Citations
- M.Roberts, D.Etherington, Bookbinding and the Conservation of Books: a Dictionary of Descriptive Terminology, U.S. Government Printing Office, Washington, DC, 1982.