Stannous Pyrophosphate

Molecular Formula:Sn2P2O7 
Molecular Weight:411.36
Standard:ACTI2161-2002
Grade:Industrial Grade、Food Grade


Product Characteristics:
white powder with density of 4.009g/cm3. Insoluble in water with a very small dissociation constant Ksp: Sn2P2O7 → 2 Sn2+ + P2O74-. Soluble in hydrochloric acid, sulfuric acid, nitric acid, and other strong acids with less than 0.1% insoluble in acids. Soluble in potassium pyrophosphate solution to form a stable K6[Sn(P2O7)2] chelate complex.)

Application:It is used as a filling in toothpastes. The minor amount of Sn2+ ions dissociated from Sn2P2O7 plays a certain role in preventing tooth diseases. It is also used as dying agent in paint and dye industry and used to fine treat pottery soil in pottery industry. In coating industry, adding a certain amount of stannous pyrophosphate can alleviate the precipitation of paint additives in paints so as to improve paint performance.)

Technical Specification
ACTI2160-2002(Specification):

Typical Value

Item

Standard

Appearance

White powder

White powder

Purity %

99.9min

99.91min

Fe %

0.005max

0.005max

Pb mg/kg

5 max

3 max

As mg/kg

3 max

2 max

Fluoride mg/kg

10 max

8 max

Package

10kg

10kg