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Phosphates
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  Product Detail  

 

Basic Product Information

Product Name: Sodium Tripolyphosphate
Abbreviation: STPP
CAS Number: 7758-29-4
E Number: E451(i)
Grade: Food Grade / Industrial Grade
Main contents Na5P3O10:  ≥95%
P2O5  : 56%-59%Certifications: ISO, HALAL, KOSHER, HACCP, REACH

Product Description:

Sodium tripolyphosphate (STPP), Cas No.: 7758-29-4,  is a versatile inorganic phosphate salt, renowned for its exceptional water-softening, chelating, dispersing, and water-retention capabilities. It is one of the most widely employed phosphate additives in both the detergent and food processing sectors.

Main Applications

1. Industrial Grade – Detergent & Cleaning Industry

STPP is a core raw material for synthetic detergents, laundry powder and industrial cleaning agents.

1.1 Effectively softens hard water by chelating calcium and magnesium ions

1.2 Eliminates soap scum and prevents dirt redeposition

1.3 Greatly improves cleaning efficiency and detergency performance

1.4 Widely used in daily chemical washing formulas and industrial cleaning production

2. Food Grade E451 – Food Processing Industry

As a legal food additive E451, STPP acts as a powerful water retention agent and quality improver.

2.1 Locks moisture in processed meat, poultry and seafood

2.2 Keeps meat tender, juicy and fresh after processing and freezing

2.3 Improves food texture, enhances product yield and taste

2.4 Stabilizes food system and extends shelf life

 
 

CERTIFICATE OF ANALYSIS

Sodium Tripolyphosphate (Food grade)

Cas.No.

7758-29-4

ITEMS

SPECIFICATIONS

RESULT

Appearance

White granular

Na5P3O10 %≥

85.0

95

P2O5     %≥

56.0-58.0

57.6

PH Value (1% solution)

9.1-10.1

9.5

Water Insoluble matter   ≤%

0.1

0.05

Arsenic     ≤%

0.0003

0.0001

Heavy Metals as Pb       ≤%

0.001

0.0008

Fluoride (as F) ≤%

0.002

0.0005

Lead       ≤%

0.0002

0.0001

Mercury       ≤%

/

0.0001

Chloride as CI   ≤%

/

0.0001

Cadmium   ≤%

/

0.0001

Bulk Density g/cm 3

0.4—0.95

0.82
Product Name: STPP CAS No.: 7758-24-9
Categories: Water Retention Agent