Sodium acid pyrophosphate
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
Soluble in water.
|Composition||Na2H2P2O7 - 6H2O|
|Melting Point||220 (dec)|
M.Roberts, D.Etherington, Bookbinding and the Conservation of Books: a Dictionary of Descriptive Terminology, U.S. Government Printing Office, Washington, DC, 1982.