Buy Disodium Phosphate; Price, Uses, and Analysis

Description

Disodium Phosphate is a chemical compound with the formula Na₂HPO₄.xH₂O. It is a salt of disodium phosphoric acid that is used as a food additive, protein stabilizer, buffer, suspender, and accelerator. Disodium phosphate and trisodium phosphate are phosphate salts that are used to regulate the pH, absorb water in food products such as cheeses, condense milk, and in the production of pasta. The main industries consuming this chemical include detergent factories, water purification industries, food industries, ceramics industries, mining industries, paper production industries, and petrochemical industries. Shanghai Chemex is one of the most reputable suppliers of this chemical in the world.

Physical and Chemical Properties:

This product is a non-flammable compound that is easily soluble in water but does not dissolve in organic solutions. Disodium Phosphate can be produced in two forms: aqueous (12 water) in the form of white crystal and dry form (2 water) in the form of white powder.

The most important physical and chemical properties of this compound can be summarized in the following table:

Chemical formula	Na2HPO4
Molecular Weight(g/mol)	141.96 (anhydrous), 177.99 (dihydrate), 268.07 (heptahydrate)
Appearance	White crystalline solid
odor	odorless
Taste	Saline taste
PH (1 % solution)	Between 8,4 and 9,6
Density (g/cm³)	1.7
Melting point (° C)	250 (482 °F; 523 K)
Water Solubility	Freely soluble in water
Solubility	insoluble in alcohol
Other names	Disodium hydrogen phosphate, Disodium hydrogen orthophosphate, Sodium phosphate dibasic
color	Colorless, translucent, or white
form	Crystals or powder
Chemical Structure Depiction

The Production Process of Disodium Phosphate:

Disodium Phosphate is made by a simple chemical reaction between phosphoric acid (H3PO4) and sodium hydroxide. Phosphoric acid is a mineral acid. It is neutralized by sodium hydroxide, which acts as an alkaline substance during the reaction. Sodium atoms replace two atoms of the three hydrogens in phosphoric acid and disodium phosphate.

H₃PO₄ + 2 NaOH → HNa₂PO₄ + 2 H₂O

The compound is industrially produced in a two-step process using dicalcium phosphate with sodium bisulfate, which precipitates calcium sulfate.

CaHPO₄ + NaHSO₄ → NaH₂PO₄ + CaSO₄

In the second step, the monosodium phosphate solution is partially neutralized:

NaH₂PO4 + NaOH → HNa₂PO₄ + H₂O

Disodium Phosphate Uses:

To improve food properties such as nutritional value and improve cooking
Decreased high blood calcium levels or increased low blood phosphate levels
In some detergents and cleaners
In the production of some glass glazed ceramics, and also in leather tanning, textile industries, printing
In cosmetics and personal care products, sodium phosphate compounds are used in the formulation of bath products, colognes, cleansers, mouthwashes, hair conditioners, hair dyes, shampoos, and skincare products.

What is the use of Disodium Phosphate in Food?

Phosphate-containing compounds such as oral sodium phosphate are used to improve food properties such as nutritional value and improve cooking. This phosphate compound is used in packaged foods such as pasta. It is also used as an emulsifier in some cheeses, in addition to traces of this product can be found in meat products, jellies, dry milk, sauces, and so on. In fish and seafood, disodium hydrogen phosphate is sometimes used to retain moisture.