The main differences between citric acid and sodium citrate include:

1. Different appearance: sodium citrate is a white cubic crystal or granular powder, while citric acid is colorless Translucent crystals are either white particles or white crystalline powder.

2. Different tastes: sodium citrate has the salty taste of salt and a bit of spiciness, while citric acid only has a sour taste.

3. Different uses: Sodium citrate is used as flavoring agent, buffering agent, gelling agent, and toner, while citric acid is used in cosmetics, jams, refreshing drinks, etc.

4. Different properties: citric acid is an important organic acid, and its calcium salt is easier to dissolve in cold water than hot water; while sodium lemon is mainly produced from starch substances through fermentation to produce citric acid, which has Lots of unique good features.

5. Different physical and chemical properties: citric acid can exist in the form of anhydrous or monohydrate, and will decompose into anhydrous when heated to a certain extent; while sodium citrate is relatively stable in the air , which has neither melting point nor boiling point.

Function of citric acid:

Citric acid is mainly used as sour agent, antioxidant, deodorant, flavor enhancer, solubilizer, buffer, gelling agent, etc. Use of toners, etc. Citric acid has the functions of inhibiting bacteria, protecting color, improving flavor, and promoting the conversion of sucrose. Citric acid can be used in the food industry. Citric acid has a mild and refreshing sour taste. It is usually used in the manufacture of various carbonated drinks, soda drinks, wine, biscuits, candies, snacks, cans, juices, dairy products and other foods.

Sodium citrate:

Sodium citrate, also known as sodium citrate, has a chemical formula of C6H5Na3O7 and a molecular weight of 258.07. It is an organic compound in the form of colorless rhombic columnar crystals. , stable in air, soluble in water and glycerin, slightly soluble in ethanol.