Trisodium Phosphate

1. Product Overview & Chemical Specifications

Product Name: Trisodium Phosphate (TSP)

Molecular Formula: Available in three mainstream forms, including anhydrous Na₃PO₄, monohydrate Na₃PO₄·H₂O, and dodecahydrate Na₃PO₄·12H₂O

Molecular Weight: Anhydrous type: 163.94; Monohydrate type: 181.96; Dodecahydrate type: 380.18

CAS Registry Number: Anhydrous Trisodium Phosphate: 7601-54-9; Dodecahydrate Trisodium Phosphate: 10101-89-0

2. Physical & Chemical Properties

Trisodium Phosphate is a premium inorganic phosphate compound presented in colorless transparent crystals, white fine powder or crystalline granular form. The product features excellent water solubility, which can be fully dissolved in water to form a uniform alkaline aqueous solution, while it is completely insoluble in conventional organic solvents.

The dodecahydrate variant has stable crystal water structure at room temperature. When the ambient temperature reaches 212℃, it will completely lose all crystal water and convert into pure anhydrous trisodium phosphate. Its aqueous solution shows weak alkalinity and has slight irritant and corrosive effects on human skin, which requires standard operating protection during use.

3. Core Applications & Industry Uses

As a multi-functional food additive and industrial chemical, food-grade Trisodium Phosphate is widely applied in the global food processing industry with diverse functional characteristics. It serves as a high-efficiency buffering agent to stabilize food pH value, an excellent emulsifier to improve food texture and uniformity, and a professional anti-caking agent to prevent raw material agglomeration.

In addition, it can be used as an antioxidant additive to extend the shelf life of food products, a nutritional supplement to replenish mineral elements, and a metal chelating agent to eliminate metal ion impurities in food systems, effectively improving food quality, stability and safety.

4. Standard Packaging Specification

We adopt international standard double-layer packaging for Trisodium Phosphate to ensure product safety and stability during long-distance international transportation. The inner layer is a food-grade thick polyethylene sealing bag for moisture-proof and dust-proof protection, and the outer layer is a durable compound plastic woven bag with high tensile strength and wear resistance.

The standard net weight of each packaged bag is 25KG, which meets the unified packaging standard of international chemical and food additive trade, convenient for container loading, storage and inventory management.

5. Professional Storage & Transportation Guidelines

For optimal product preservation, Trisodium Phosphate should be stored in a dry, clean, ventilated and constant-temperature warehouse environment, avoiding long-term exposure to high temperature, humidity and direct sunlight. During international transportation, heat sources, humid environments and rainwater soaking must be strictly avoided.

All handling and loading & unloading operations need to be carried out gently to prevent packaging damage, leakage and product contamination. Meanwhile, the product must be stored and transported separately from toxic, harmful and polluting substances to ensure product purity and compliance with food-grade safety standards.