Sodium tripolyphosphate (STPP) Introduction
Sodium tripolyphosphate (STPP) is an inorganic compound with the chemical formula Na₅P₃O₁₀. It is widely used in food, detergents, water treatment and other fields.
- Chemical properties：
- Molecular formula: Na₅P₃O₁₀
- Molecular weight: 367.86 g/mol
- Appearance: white powder or granules
- Solubility: easily soluble in water, aqueous solution is alkaline
- Main Application：
- Food industry: used as a moisture retainer and quality improver for meat, seafood and other products.
- Detergent: used as a water softener and decontamination aid to enhance the washing effect.
- Water treatment: used as a corrosion inhibitor and scale inhibitor to prevent scaling of pipes and equipment.
- Industrial application: used in ceramics, dyes, papermaking and other industries.
- Security：
- Food grade: safe to use in moderation, but excessive use may affect calcium absorption.
- Environmental impact: may cause eutrophication of water bodies, so use should be controlled.
- Storage and transportation：
- Storage: Keep in a dry, ventilated place, avoid moisture and high temperature.
- Transportation: Prevent packaging from being damaged and avoid mixing with acids.
Summary：
Sodium tripolyphosphate is widely used in many fields, but attention should be paid to its environmental impact and safe use.