Sodium Tripolyphosphate (STPP) CAS 7758-29-4

Sodium Tripolyphosphate (STPP) CAS 7758-29-4

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Product Details

 

Product name: 
Sodium Tripolyphosphate
Molecular Formula:  
Na5P3O10
Molecular Weight:
367.86
CAS No.: 
7758-29-4


Description

Sodium Tripolyphosphate occurs as white, slightly hygroscopic granules, or as a powder. It is anhydrous or contains six molecules of water of hydration. It is freely soluble in water, but insoluble in alcohol. The pH of a 1:100 aqueous solution is about 9.5.

 

Applications

In the food industry, sodium tripolyphosphate can be used as a moisture retaining agent, a quality improver, a pH adjuster, and a metal chelating agent.

 

Specification

Appearance 
White crystals or crystalline powder
Assay of Na5P3O10
≥ 85.0%
Arsenic
≤3ppm
Fluoride
≤0.005%
Lead
≤2ppm
In-soluble substances
≤0.1%


Packing  

25kg/ bag or as per requirement.

 

Storage

Store in a cool dry place.

 

Minimum Order

1000kgs

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