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Sodium tripolyphosphate

Sodium tripolyphosphate
Product Description

Sodium tripolyphosphate (STPP)

Typical specification

Item

Standard

Appearance

White powder or granular

 Na5P3O10, %  

94min

P2O5, %

57min

Water insoluble matter, %  

0.1max

Iron (Fe), %  

0.015max

PH value (1% water solution)

8-10

Whiteness, %  

90min

Phase I

10-30

Bulk Density, g/cm3

0.55-0.75

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