STPP - Sodium Tripolyphosphate

The STPP – Sodium Tripolyphosphate is a versatile phosphate salt supplied for food processing, animal feed, detergent, industrial cleaning, water treatment, and other industrial applications. Available as a white powder or granule, STPP offers water retention, chelation, emulsification, stabilization, and pH adjustment properties for different formulations.

Supplied by Wuhan Waking Lion Chemicals Co., Ltd., the product is available in food grade, feed grade, and industrial grade specifications. Buyers can select the appropriate grade according to the intended application, regulatory requirements, purity, and processing conditions.

Product Information

Product Name: Sodium Tripolyphosphate (STPP)
Molecular Formula: Na₅P₃O₁₀
Molecular Weight: 367.86
CAS No.: 7758-29-4
Appearance: White powder or granule
Available Grades: Food Grade / Feed Grade / Industrial Grade
Standard Packaging: 25 kg bags, 50 kg bags, 1,000 kg jumbo bags
Customized Packaging: Available

Main Product Advantages

Excellent Water Retention: STPP binds water molecules and helps improve moisture retention in suitable food processing applications.

Chelating Performance: It can sequester metal ions such as calcium and magnesium, supporting formulation stability and cleaning efficiency.

Emulsification and Stabilization: STPP can be used as an emulsifying and stabilizing ingredient in selected food and dairy applications.

pH Adjustment: Its alkaline properties allow it to function as an acidity or pH adjustment ingredient in suitable food and feed formulations.

Detergent Builder: Industrial grade STPP helps bind hardness ions, reduce scale formation, and improve surfactant performance in detergent formulations.

Multiple Grades: Food, feed, and industrial grades are available for different end-use requirements.

Flexible Supply: Standard bags, jumbo bags, bulk supply, and customized packaging options are available.

Food Grade STPP

Food grade STPP is suitable for approved food processing applications and can be supplied according to GB 1886.335-2021, FCC, Q/WL D06-2021, and E451(i) requirements.

Typical applications include meat and seafood processing, processed dairy products, and selected beverage formulations.

Feed Grade STPP

Feed grade STPP can be used as an acidity adjuster in livestock and poultry feed formulations. Its phosphate content also makes it suitable for applications where phosphate supplementation and mineral management are required.

The appropriate dosage should be determined according to the complete feed formula, animal species, processing conditions, and applicable regulations.

Food Grade / Feed Grade Specification

Item	Food Grade	Feed Grade
Sodium Tripolyphosphate, W/% ≥	85.0	85.0
Total Phosphates as P₂O₅, W/%	56.0–58.0	56.0–58.0
Water Insoluble, W/% ≤	0.1	0.1
pH (10g/L solution)	9.1–10.1	—
Moisture, W/% ≤	—	2
Fluoride, mg/kg ≤	20	100
Arsenic, mg/kg ≤	3	10
Lead, mg/kg ≤	2	10
Chromium, mg/kg ≤	—	10

Industrial Grade STPP

Industrial grade STPP is primarily used as a detergent builder and industrial cleaning ingredient. It can bind Ca²⁺ and Mg²⁺ ions in hard water, helping improve surfactant efficiency and reduce lime scale.

It is also used in petroleum, mining, metallurgy, water treatment, paper, textile, and other industrial processing applications.

Standard: GB/T 9983-2004.

Industrial Grade Specification

Item	Excellent	First Class	Qualified
Sodium Tripolyphosphate, W/% ≥	96	90	85
P₂O₅, W/% ≥	57.0	56.5	55.0
Water Insoluble, W/% ≤	0.10	0.10	0.15
Iron as Fe, W/% ≤	0.007	0.015	0.030
Whiteness, W/% ≥	90	85	80
pH (1% solution)	9.2–10.0	9.2–10.0	9.2–10.0
Particle Size ≥1.00mm	≥95%	≥95%	≥95%

Main Applications

Meat & Seafood Processing: STPP supports water retention and can help reduce cooking loss and drip loss. It is commonly used in processed meat and seafood products such as ham, sausage, surimi, and shrimp.

Dairy Products: It can function as an emulsifying salt and stabilizer in processed cheese and selected dairy formulations, helping support protein stability.

Beverages: STPP can be used in suitable beverage applications where metal ion chelation and formulation clarity are required.

Animal Feed: Feed grade STPP can serve as an acidity adjuster and phosphate ingredient in livestock and poultry feed formulations.

Detergents: Industrial STPP functions as a builder in synthetic detergents, helping control hardness ions and improve cleaning performance.

Industrial Cleaning: It can be used in heavy-duty cleaning formulations, hard-surface cleaning, and CIP systems.

Other Industries: Applications include water treatment, petroleum processing, mining, metallurgy, paper processing, and textile processing.

Packaging and Bulk Supply

STPP is available in 25 kg and 50 kg bags for conventional handling and distribution. For large-volume industrial purchasing, 1,000 kg jumbo bags and bulk packaging can also be arranged.

Customized packaging, pallet configuration, labeling, and documentation can be discussed according to customer requirements.

The typical MOQ is approximately one full container load, generally around 20–25 MT for 25 kg bags. Smaller quantities may be discussed for samples, testing, or new customer evaluation.

Quality and Documentation

For international B2B procurement, relevant product documentation can be provided according to grade and order requirements, including:

Technical Data Sheet (TDS)
Safety Data Sheet (SDS)
Certificate of Analysis (CoA)
Product specifications
Certification documents
Customs documentation

Food grade products are available according to applicable GB and FCC requirements, with E451(i) specifications supported for relevant applications.

Supply and Customization Support

Wuhan Waking Lion Chemicals Co., Ltd. has phosphate production experience dating back to 1952 and a reported phosphate production capacity of approximately 200,000 MT per year.

For distributors, food ingredient suppliers, detergent manufacturers, feed producers, and industrial chemical buyers, the supplier can support bulk orders and long-term supply arrangements.

Available services include:

Food, feed, and industrial grade selection
Bulk supply
Customized packaging
Pallet configuration
CoA and technical documentation
Sample support
Long-term supply contracts
Scheduled delivery arrangements

FAQ

Q: What is STPP used for?
A: STPP is used in food processing, animal feed, detergents, industrial cleaning, water treatment, and various industrial applications. Its functions include water retention, chelation, emulsification, stabilization, and detergent building.

Q: Can food grade STPP be used for industrial cleaning?
A: Grade selection should follow the intended application. Food grade is designed for approved food applications, while industrial grade is intended for industrial uses.

Q: Can you provide samples and documents?
A: Samples, TDS, SDS, CoA, and relevant product documentation can be provided according to project requirements.

Q: Can long-term supply contracts be arranged?
A: Yes. Long-term supply programs can be discussed based on annual demand, volume allocation, delivery schedule, and commercial requirements.

Request a Quote for STPP

For food processors, feed manufacturers, detergent producers, distributors, and industrial users looking for a reliable phosphate ingredient, the STPP – Sodium Tripolyphosphate offers multiple grades, specifications, packaging options, and bulk supply solutions.

Buyers can request pricing, samples, TDS, SDS, CoA, certification information, and customized packaging or long-term supply arrangements according to their procurement requirements.

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