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Sodium tripolyphosphate/STPP
Sodium tripolyphosphate/STPP
Supplier Info
[China Supplier]
Contact Person : Mr. he Tomson
Tel : 86-0575-83373230
Fax : 86-0575-83371088
Product Detail
1.Used as main auxiliary of synthetic wash, soap synergistic agent, 2.also widely used in gum synthesis

 STPP 

     Chemical name:Sodium tripolyphosphate

     Chemical formula: Na5P3O10

     Molecular weight: 367.86

1.  Properties:

    White powder, surface density: 0.35-0.9g/cm3, melting point:622°C, free soluble in water, aqueous solution appears acid. It is a kind of inorganic surface active agent.

2. Specifications:

No.

Item

Top quality

First quality

1

Main content(base on Na5P3O10),%

94MIN

90

2

Phosphorus pentoxide,%

57MIN

56.5

3

Insoluble substance in water,%

0.04MAX

0.08

4

Iron content,%

0.006MAX

0.007

5

Whiteness,%

92MIN

90

6

Granularity 1mm test sieve,%

5

5

7

Drying loss,%

0.5MAX

0.5

8

PH value(1% aqueous solution)

9.2--10.0

9.2--10

3. Usage:       Used as main auxiliary of synthetic wash, soap synergistic agent, water softener, leather pre-tanning agent, dye auxiliary agent, and dispersant of suspension such as paint, kaolin, magnesium oxide, calcium carbonate drilling mud, preservative agent for paper making, organic synthesis catalyzer, and used in epuration of petroleum product, gum latex storage, as dispersant, solvent in metal industry and pharmaceutical industry, also widely used in gum synthesis, 

4. Packaging and transportation:

   25kg-50kg woven bag lined with plastic, stored in dry and draughty place

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