Product Name：Sodium Tripolyphosphate(STPP)Tech Grade for Detergent Uses

Cas No.:7758-29-4

Formula:Na5P3O10

EINECS:231-838-7

Production Capacity:25,000 mt per year

Introduction:

Sodium tripolyphosphate,chemical structure:this product is a kind of amorphous water-soluble linear polyphosphate,terminated with Na2PO4 at both ends,chemical formula Na5P3O10,relative molecular weight 367.86.It is often used in detergent,ceramic and water treatment industries as PH regulator and metal chelating agent.

As a trustworthy tech grade STPP supplier,we Shenlong STPP Factory have always been keeping in mind that quality is the lifeline of any manufacturer,therefore we are making unremitting efforts to ensure our customers get the highest quality service.Besides we take our customers’satisfaction as the very core of our work,and thus you can always make yourself assured when cooperating with us.

Fob Chongqing:845 USD

Payment Term:30%TT;70%CAD

Update Time:June 16th,2025

Sodium tripolyphosphate, chemical structure: this product is a kind of amorphous water-soluble linear polyphosphate, terminated with Na₂PO₄ at both ends, chemical formula Na₅P₃O₁₀, relative molecular weight 367.86. It is often used in detergent, ceramic and water treatment industries as PH regulator and metal chelating agent.

Certificate of Analysis

KEY ATTRIBUTES

Industry-specific attributes

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Supply Ability

Tech Grade STPP (Sodium Tripolyphosphate) is a high-purity inorganic compound widely used in industrial applications such as detergents, ceramics, and water treatment. With a chemical formula of Na5P3O10 and a molecular weight of 367.86, this product is an amorphous, water-soluble linear polyphosphate that acts as an excellent pH regulator and metal chelating agent. The tech grade STPP is known for its high purity (≥94%), strong sequestration performance, and stable physical properties, making it ideal for use in industrial formulations that demand consistency and quality.

The tech grade STPP effectively binds metal ions such as calcium and magnesium, preventing their interference in cleaning or processing systems. It also enhances the efficiency of detergents, improves ceramic processing performance, and maintains water clarity in treatment systems. Its white, free-flowing powder form ensures easy handling, uniform mixing, and reliable solubility during production processes.
Key advantages of tech grade STPP include high whiteness, low iron content, minimal water insolubles, and a stable alkaline pH range (9.2–10). These features ensure optimal compatibility with surfactants, dispersants, and other industrial additives. With its multifunctional properties, tech grade STPP serves as a critical ingredient in modern manufacturing sectors, offering superior performance, long shelf life, and cost-effective solutions for diverse industrial needs.