Appearance (Colour)
White
Appearance (Form)
Crystalline powder
Solubility (Turbidity) 10% aq. solution
Clear
Solubility (Colour) 10% aq. solution
Colourless
Assay (HCl titration)
min. 98%
pH (5% aq. solution)
9.5 - 10.5
Sulphate (SO4)
max. 0.01%
Notes
Sodium pyrophosphate is used as a buffering agent, an emulsifier, a dispersing agent, and a thickening agent, and is often used as a food additive.