Introduction

Phosphate is a commonly used reagent for phosphorylation of polysaccharides because it is cheap and easy to obtain. There are mainly disodium hydrogen phosphate (Na2HPO4), sodium dihydrogen phosphate, sodium trimetaphosphate (STMP), sodium tripolyphosphate (STPP) or their mixed salt. Sodium dihydrogen phosphate and disodium hydrogen phosphate are commonly used salts. Zhang et al. mixed NaH2PO4 and Na2HPO4 in proportion and then reacted with Bletilla striata polysaccharide with urea as a catalyst. Disodium phosphate is a chemical added to foods, cosmetics, and other products. It’s useful as a preservative and a flavour enhancer, among other things.

Uses

Disodium phosphate is a widely used derivative product of phosphoric acid. Disodium phosphate is used directly in water treatment for corrosion control or blended with polyphosphates for corrosion control and scale inhibition. It is also used as an input in the manufacturing of sodium polyphosphates. Disodium

Phosphates are commonly used in dairy product processing and as a buffering agent in industrial processes such as textile manufacturing.

Use in Water Treatment

Disodium phosphate is used directly in corrosion control and blended with polyphosphates for corrosion control and scale inhibition.

Use as a Precursor to Other Water Treatment Chemicals

Disodium phosphate is used to manufacture sodium polyphosphates.

Other Applications

Disodium phosphate is widely used as an emulsifier, pH buffering agent, and stabilizer in food production, and as buffering agent in textile production. Cheese, whipped cream, milk, and other dairy products have unique textures and consistencies because of disodium phosphate. Disodium phosphate is also helpful in canning food since it prevents metal from rusting.

Other significant uses include formulation of cleaning agents, detergent products, as well as water treatment.

Primary Industrial Consumers

Significant uses of disodium phosphate include food production, pH buffering for industrial processes such as textile processing, the formulation of cleaning products, corrosion control, and anti-scaling applications in water treatment.