Table of Contents
What is Lactic Acid?
Lactic Acid – Chemical Formula: Lactic acid is a chemical compound that is produced by the body during exercise. It is a natural by-product of the breakdown of carbohydrates and glycogen in the muscles. Lactic acid is responsible for the burning sensation that is felt in the muscles during exercise.
Structure of Lactic Acid
Lactic acid is a 3-carbon monocarboxylic acid molecule. It is a white, odorless, and hygroscopic crystalline solid that is soluble in water. Lactic acid is produced as a result of the fermentation of glucose by lactic acid bacteria. The structure of lactic acid is shown below.
Properties of Lactic Acid
- Lactic acid is a colorless, odorless, and slightly acidic organic compound. It is a carboxylic acid that is made by the fermentation of sugar. Lactic acid is used in food production, as a preservative, and in the production of plastics.
- Lactic acid is a weak acid. Its pKa is 3.86. This means that lactic acid is about 86% dissociated in water. Lactic acid is soluble in water and ethanol. It is not soluble in ether.
- Lactic acid has a sour taste. It is used as a food additive to give a sour taste to food. It is also used as a preservative to prevent the growth of bacteria. Lactic acid is also used in the production of plastics.
Uses of Lactic Acid
- There are a number of uses for lactic acid.
- It can be used as a food additive to improve the flavor of food and as a preservative.
- It can also be used as a cleaning agent or a disinfectant. Lactic acid can also be used in the production of biodegradable plastics.
Formula of lactic acid
Lactic acid is a carboxylic acid with the formula CH3CH(OH)COOH. It is a white crystalline solid that is produced by the fermentation of sugar. Lactic acid is used in the food industry, for example as a preservative, and in the production of plastics and polymers.
