Sodium Acid Pyrophosphate
Structural Formula Vector Image
Title: Sodium Acid Pyrophosphate
CAS Registry Number: 7758-16-9
Additional Names: Disodium dihydrogen pyrophosphate
Molecular Formula: H2Na2O7P2
Molecular Weight: 221.94
Percent Composition: H 0.91%, Na 20.72%, O 50.46%, P 27.91%
Line Formula: Na2H2P2O7
Literature 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.
Density: d (hexahydrate) 1.86
Use: Chiefly in baking powders.

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