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Sodium Tripolyphosphate STPP E451 - Moisture Retaining Agent, Water Softener, and pH Adjuster for Food and Industrial Applications

Brand Name:	Zorui
MOQ:	500g, 1kg or 25kg for sample, 1000kg for commercial order
Payment Terms:	T/T, LC, OA
Supply Ability:	3000 Tons/month

Detail Information

Product Description

Detail Information

Place of Origin:

Shanxi, China

Certification:

ISO, COA, MSDS, TDS, AAA

Name:

Sodium Tripolyphosphate (STPP)

Alias:

Pentasodium Tripolyphosphate, Sodium Triphosphate, Pentasodium Phosphate.

Chemical Formula:

Na5P3O10

Molecular Weight:

367.864

CAS No.:

7758-29-4

EINECS:

231-838-7

Melting Point:

622 ℃

Solubility:

Soluble In Water

Density:

2.52 G/cm³

Appearance:

White Crystalline Powder

Sample:

Available

Port:

Tianjin,Shanghai,Qingdao,Other Ports In China

Port:

Tianjin, Shanghai, Qingdao, Other Ports In China

Trade Term:

EXW, DAP, FOB, CFR, CIF, CPT, CIP

Shipping:

Sample By Express, 100kg+ By Air, 1000kg+ By Sea

Packaging Details:

Net Weight 25kg or 200kg/package

Highlight:

Moisture Retaining Agent Sodium Tripolyphosphate

Quality Improver STPP

Metal Chelating Agent E451

Product Description

Sodium Tripolyphosphate (STPP) E451 CAS 7758-29-4

Sodium Tripolyphosphate (STPP), an inorganic compound with the chemical formula Na₅P₃O₁₀, is an amorphous water-soluble linear polyphosphate. It is widely used in foodstuffs as a moisture retaining agent, quality improver, pH regulator, and metal chelating agent.

Key Benefits

Moisture Retaining Agent
Quality Improver
pH Regulator
Metal Chelating Agent

Target Industries: Food Industry
Typical Applications: Food processing and preservation

Technical Specifications

Name	Sodium tripolyphosphate (STPP)
Alias	Pentasodium Tripolyphosphate, Sodium Triphosphate, Pentasodium Phosphate
Chemical Formula	Na₅P₃O₁₀
Molecular Weight	367.864
CAS No.	7758-29-4
EINECS	231-838-7
Melting Point	622 ℃
Solubility	Soluble in water
Density	2.52 g/cm³
Appearance	White crystalline powder

Product Functions

Water Softener: Effectively binds calcium and magnesium ions, preventing hard water problems
Emulsifying Agent: Enhances texture and stability in food products
Preservative: Maintains freshness and quality by inhibiting microbial growth
pH Adjuster: Contributes to maintaining optimal pH levels in formulations

Application Areas

Food Industry: Used in meat, fish, and dairy products to improve texture, moisture retention, and shelf life
Detergents and Cleaning Products: Utilized for water softening and emulsifying properties
Cosmetics: Employed as stabilizer and emulsifier in personal care products
Agriculture: Enhances nutrient delivery and effectiveness in agricultural products

Manufacturing Process

Raw Material Sourcing: Produced from sodium phosphate and phosphoric acid reaction
Condensation Reaction: Phosphates condense to yield STPP in dry powder form
Purification: Removal of impurities to ensure high quality
Quality Control: Rigorous testing for safety, quality, and regulatory compliance

Why Choose Our STPP

High Quality: Manufactured under strict quality control for optimal efficacy and safety
Technical Expertise: Knowledgeable team providing formulation support and technical assistance
Competitive Pricing: Attractive pricing for both bulk orders and specialty formulations
Sustainability: Committed to responsible sourcing and environmentally friendly manufacturing

Frequently Asked Questions

What is Sodium Tripolyphosphate used for?

STPP is primarily used as a food additive, water softener, and emulsifier in various industrial and household products.

Is STPP safe for use in food products?

Yes, Sodium Tripolyphosphate is generally recognized as safe for use in food products within established guidelines.

How should STPP be stored?

Store in a cool, dry place away from moisture to maintain product quality.

What is the shelf life of Sodium Tripolyphosphate?

Typically, STPP has a shelf life of 2 to 3 years when stored properly.

Can I request samples for testing?

Yes, samples are available upon request. Please contact us for more information.

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