Nomenclature
CAS number: 7758-16-9
Disodium dihydrogen pyrophosphate.
H
2Na
2O
7P
2; mol wt 221.94.
H 0.91%, Na 20.72%, O 50.46%, P 27.91%.
Na
2H
2P
2O
7.
Description and references
Prepn: Bell, Inorg.
Synth. 3, 98 (1950).
Properties
White, fused masses or powder. Dec at 220°. d (hexahydrate) 1.86.
Sol in water, the soln having an acid reaction.Use
Chiefly in baking powders.