Sodium Tripolyphosphate STPP 94% for Washing Powder Use

• CAS No.: 7758-29-4
• Formula: Na5p3o10
• EINECS: 231-838-7
• Certification: CCIC, CIQ, RoHS, ISO
• Purity: 90%~99%
• Type: Sodium Tripolyphosphate
• Model NO.: 94%
• Grade Standard: Industrial Grade
• Molecular Formula: Na5p3o10
• Molecular Weight: 367.86
• Other Name: STPP
• Na5p3o10: 94min
• Insolubles in Water: 0.15max
• Fe: 0.007max
• pH: 9.2-10
• Heavy Metal: N
• Transport Package: 25kg/Bag
• Specification: 94%
• Trademark: Kelai
• Origin: China
• HS Code: 2835319000
• Production Capacity: 15000 Ton/Year

Product Description

Sodium Tripolyphosphate STPP 94% for Washing Powder Use
 

Molecular Formular: Na5P3O10

CAS No.: 7758-29-4

ISO,SGS, BV certificate

Prompt delivery&good service

Packing: 25kg pp or paper bag

Appearance: White powder or granular; Easily soluble in water


STPP is white powder, apparent density:0.35-0.90g/ml, melting point: 622°C, easily dissolving
in water; water solution is alkaline(PH value of 1% solution is 9.7); can hydrolyze into phosphate
in water, has good ability in complexing metal ions,; can be used to soften water; has some
surfactant properties.

Specifications

ITEM	Tech. Grade	Food Grade
Na5P3O10 (%):	94Min	94
P2O5 (%):	57Min	57
Insolubles in water (%):	0.15Max	0.05Max
Fe (%):	0.007Max	N
Ph (1% solution):	9.2-10	9.5-10
Heavy Metal (As Pb) (%):	N	0.01Max
Arsenic (As) (%):	N	0.0003Max
Fluoride(F) (%):	N	0.003Max
Whiteness(%):	90Min	90Min
Density (g/cm^3)	0.35-0.9	0.35-0.9
Itype content (%)	10-30	10-30

Product Picture



Packing and Delivery

Packing: 25kg/bag, 21 MT/20'GP

Delivery: 3-7 days from China main port



Application

1)In Detergents

The majority of STPP is consumed as a component of commercial detergents.

It serves as a "builder," industrial jargon for a water softener. In hard water 

(water that contains high concentrations of Mg2+ and Ca2+), detergents are 

deactivated. Being a highly chargedchelating agent, TPP5- binds to dications 

tightly and prevents them from interfering with the sulfonate detergent.

2)Food Applications

STPP is a preservative for seafood, meats, poultry, and animal feeds.It is common 

in food production as E number E451. In foods, STPP is used as an emulsifier and 

to retain moisture. Many governments regulate the quantities allowed in foods, 

as it can substantially increase the sale weight of seafood in particular. The UnitedStates Food and Drug Administration lists STPP as "generally recognized as safe.".

3)Other Uses

Other uses (hundreds of thousands of tons/year) include "ceramics, leather 

tanning(as masking agent and synthetic tanning agent - SYNTAN), anticaking, 

setting retarders, flame retardants, paper, anticorrosion pigments, textiles, 

rubber manufacture, fermentation, antifreeze.

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