Sodium Phosphate

Definition - What does Sodium Phosphate mean?

Sodium Phosphate is a salt that contains several varieties of sodium and phosphate salts in hydrous or anhydrous form. In a general scenario, hydrous type sodium phosphate salts are more common when compared to anhydrous type sodium phosphate salts. The salts of Sodium will contain Na+ cations and phosphate salts consists of PO43- anions. These phosphate anions may include various phosphate salt families such as di, tri, tetra and polyphosphates.

Petropedia explains Sodium Phosphate

The salts of sodium phosphates are formed by neutralization of phosphoric acid with sodium hydroxide. This technique helps in forming three types of sodium phosphate salt solutions namely, monosodium phosphate (MSP); disodium phosphate (DSP); trisodium phosphate (TSP). The pH level for these three sodium phosphate solutions ranges from 4.6 to 12. Trisodium phosphate is considered to be an excellent degreaser and it helps in the precipitation of calcium ions.

Sodium phosphate salts are used in a large number of industries such as:

  • Food industry, where they are used as emulsifiers.
  • Water treatment.
  • Oilfield applications and other mechanical and chemical industries, where they are used as degreasers, clay deflocculants, cement contamination treatment, drilling mud thinners, etc.

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