Sodium Tripolyphosphate (STPP)

Type: Food Additives
Origin: China
CAS No.: 7758-29-4
AUCO No.: 369
Packing: 25kg bag


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Product Description

Sodium Tripolyphosphate (STPP)

Sodium tripolyphosphate (STPP), CAS NO. is: 7758-29-4. It is white powder, easily soluble in water and the aqueous solution is alkaline. Sodium tripolyphosphate has two grades: Technical grade and Food Grade. AUCO are exporting STPP 94% regualrly per month worldwidely.

Applications:

STPP tech grade has the functions of chelating, suspending, dispersing, peptizing, emulsifying, and pH buffering. STPP 94% can be used as the main additive of synthetic detergents, industrial water softeners, leather pretanning agents, dyeing auxiliaries and organic synthesis catalysts.

Sodium tripolyphosphate (STPP) food grade can be used in food industry as a preservative, moisture retaining agent and quality improver in meat products, fish products, dairy products and baked goods.

Specification：

Items	Standard
Appearance	White powder
Assay	≥85%
P₂O₅	56~59%
Loss on drying	≤0.7%
Water Insoluble	≤0.1%
Higher polyphosphates	≤1%
pH of 1% solution	9.1~10.2
As	≤1ppm
Pb	≤1ppm
Cd	≤1ppm
Hg	≤1ppm
Fluoride as F	≤10ppm