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Sodium Tripolyphosphate (STPP)

Molecular formula: Na5P3O10

Molecular weight: 367.88

Properties: White gloss micro-granular powder.

Uses:used as ingredient of detergent, food additive, moisture keeping agent of food, liquating dispersant of cheese.

Packing:Industrial grade is 25/50kg in plastic bag lined plastic woven bag, Food grade is in food grade PE plastic bag lined

woven bag,

Technical index

NO.

Index name

Industrial grade

1

Main content (as P2O5 ) % =

57.0

2

Sodium Tripolyphosphate Na5P3O10 % =

90

3

Fe % =

0.015

4

Water insoluble matter % =

0.10

5

Chloride (as CI ) % =

 

6

Heavy metals (as Pb ) % =

 

7

As % =

 

8

PH value of 1% solution

9.2-10.0