The difference between tripotassium phosphate and anhydrous tripotassium phosphate

There are differences between tripotassium phosphate and anhydrous tripotassium phosphate in hydration state, moisture absorption and solubility. The specific analysis is as follows:

Hydrated state

Tripotassium phosphate: Usually refers to the hydrate form containing one or more water molecules, such as heptahydrate and ninahydrate.

Anhydrous tripotassium phosphate: pure dry product without water molecules, also known as anhydrous substance.

hygroscopicity

Tripotassium phosphate: It has delixibility and can easily absorb water in the air and become hydrate.

Anhydrous tripotassium phosphate: Because it does not contain water molecules, it is not easy to absorb moisture and has good stability.

solubility

Tripotassium phosphate: soluble in water, insoluble in ethanol. Its 1% aqueous solution has a pH of about 11.5.

Anhydrous tripotassium phosphate: Equally soluble in water, but insoluble in ethanol. The solubility is slightly higher than tripotassium phosphate because it does not contain bound water molecules.

use

Tripotassium phosphate: widely used in the food industry as emulsifier, fortifying agent, flavoring agent and meat binder. It is also used to make liquid soap, high-quality paper and refined gasoline.

Anhydrous tripotassium phosphate: It is mainly used in industrial processes that require strict control of moisture content, such as chemical analysis and certain specific chemical reactions.

Overall, tripotassium phosphate and anhydrous tripotassium phosphate differ significantly in several ways, and the choice of which form of tripotassium phosphate to use depends on the specific application needs. If you need to control the moisture content of the product or use in a high humidity environment, anhydrous tripotassium phosphate is a better choice; Under normal conditions, conventional tripotassium phosphate can meet most of the needs.