The chemical formula of sodium acetate is NaC2H3O2.

1. The composition of sodium acetate

Sodium acetate is a salt compound composed of acetate ions (C2H3O2-) and sodium ions (Na). Among them, acetate ion consists of an acetate group and a negative charge, which is slightly acidic.

2. Preparation method of sodium acetate

Sodium acetate can be obtained by the reaction of acetic acid and sodium hydroxide. The specific steps are as follows: First dissolve an appropriate amount of sodium hydroxide in water, and then slowly add acetic acid. During the reaction, a white precipitate, sodium acetate, will be produced. The reaction equation is: CH3COOH NaOH→CH3COONa H2O.

3. Properties of sodium acetate

Sodium acetate is a white crystalline powder that is alkaline. It is easily soluble in water and insoluble in organic solvents such as ethanol and ether. In an acidic environment, sodium acetate releases acetic acid, so it can be used in the food industry as a sour agent, flavoring agent and preservative.

4. Uses of sodium acetate

Sodium acetate is a widely used chemical and has important uses in medicine, food, dyes, leather and other fields. For example, it can be used for the preparation of oral liquids and injections, the preparation of dyes, the nitration treatment of leather, fixed development, etc. In addition, sodium acetate is an excellent cleaning agent that can remove various stains.

In short, sodium acetate is an important salt compound with many uses and good properties.