Quick Details

Classification: Phosphate Type: Sodium Tripolyphosphate CAS No.: 7758-29-4

Other Names: Sodium triphosphate; STPP MF: Na5P3O10 EINECS No.: 231-838-7

Place of Origin: Zhejiang China (Mainland) Grade Standard: Food Grade, Industrial Grade Purity: 94%min

Specifications

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2,Free sample

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Product Description
Product: Sodium Tripolyphosphate (STPP)
CAS No.: 7758-29-4
Molecular Formula: Na5P3O10 Molecular weight: 367.86

1, Properties:

White microdot powder with luster, melting point at 622 o C, easily soluble in water, with remarkable chelating ability to some metal ions such as Ca 2+, Mg 2+, can soften hard water, change suspension into solution, slightly alkaline, without causticity.

2, 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, foodstuff industry, and poultry process.

3, Specifications:

1. Industrial grade

Main content, %; 94.0

P2O5%≥ 57.0

Water insoluble %; 0.1

Iron, as Fe %; 0.015

pH of 1% water solution 9.2-10.0

2. Cersmic Grade

Chemical Property

STPP Content 94%MIN
 

P205 Content 57%MIN

Water insoluble 0.1%MAX

Moisture (%) at 150C 1.0%MAX

PH: 9.2-10

Iron as Fe 0.015%

Phase 2 23-26

Partickle size 95% PASSED VI



A 100MESH