Sodium Acetate Anhydrous

Sodium acetate generally exists in the form of sodium acetate trihydrate with three crystalline waters. Sodium acetate trihydrate is colorless transparent or white grain crystal, can be weathered in the air, flammable. Soluble in water, slightly soluble in ethanol, insoluble in ether. Crystalline water is lost at 123℃. But usually it tastes of acetic acid. Hydrolysis occurs in water.

 

Application

Industrial uses

Sodium acetate is used in the textile industry to neutralize sulfuric acid waste streams and also as a photoresist while using aniline dyes. It is also a pickling agent in chrome tanning and helps to impede vulcanization of chloroprene in synthetic rubber production. In processing cotton for disposable cotton pads, sodium acetate is used to eliminate the build-up of static electricity.

Concrete longevity

Sodium Ethanoate or sodium acetate is used to mitigate water damage to concrete by acting as a concrete sealant, while also being environmentally benign and cheaper than the commonly used epoxy alternative for sealing concrete against water permeation.

Food Industry

Sodium acetate may be added to food as a seasoning, sometimes in the form of sodium di acetate, a one-to-one complex of sodium acetate and acetic acid, given the E-number E262. It is often used to give potato chips a salt and vinegar flavour.

Buffer solution

As the conjugate base of acetic acid, a solution of sodium acetate and acetic acid can act as a buffer to keep a relatively constant pH level. This is useful especially in biochemical applications where reactions are pH-dependent in a mildly acidic range (pH 4-6)