TSPP·10H2O

Appearance

White Powder

Crystal Particle

Sodium Pyrophosphate Na4P2O7

%(w/w)

96.5-100.5

min. 98.0

Water Insoluble

%(w/w)

max.  0.20

max.  0.10

pH (1% aqueous solution)

9.9 -10.7

9.9 -10.7

Arsenic (As)

mg/kg

max. 3

max. 3

Heavy Metal (as Pb)

mg/kg

max. 10

max. 10

Fluoride (as F)

mg/kg

max. 50

max. 50

Loss on lgnition

%(w/w)

max. 0.50

38.0-42.0

Orthophosphate

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