Product Name: Tetrasodium pyrophosphate (TSPP)
CAS No.: 7722-88-5 (Anhydrous); 13472-36-1 (Decahydrate)
Molecular Formula: Na4P2O7; Na4P2O7·10H2O
Standarad: GB 25557-2010; HG/T2968-2009
Package: 25Kg, 50Kg plastic bag lined woven bag, 1000Kg bag or according to customers’ demand.
Application:
Tech grade: Mainly used as detergent, decolourant auiliary, water treatment agent, electroplaing auxiliary agent and so on.
Food grade: As emulsifier, acidity-adjuster, expanding, complexing and water retaining agent
Specification (Food grade)
|
Item |
Specification | |
|
Appearance |
White powder or crystal | |
|
Main content (Na4P2O7·10H2O) ≥% |
85 | |
|
Main content (Na4P2O7) ≥% |
96.5~100.5 | |
|
Ortho phophates |
Pass | |
|
Water insoluble ≤% |
0.2 | |
|
PH value(10g/L solution) |
9.9-10.7 | |
|
As mg/kg ≤ |
3 | |
|
Heavy metals (as Pb) mg/kg≤ |
10 | |
|
Fluoride (F) mg/kg≤ |
50 | |
|
Lead (as Pb) mg/kg≤ |
4 | |
|
Loss of ignition |
Na4P2O7·10H2O, w/% |
38.0~42.0 |
|
Na4P2O7 w/% ≤ |
0.5 | |
Specification (Industrial grade)
|
Item |
Specification | |
|
|
Na4P2O7 |
Na4P2O7·10H2O |
|
Appearance |
White powder or crystal |
White powder or crystal |
|
Main content w/% |
≥96.5% |
≥98.0% |
|
Ortho phophates |
Pass |
Pass |
|
Water insoluble w/% |
≤0.15 |
≤0.10 |
|
PH value(10g/L solution) |
9.9-10.7 |
9.9-10.7 |