Sodium citrate dihydrate with chemical formula C6H5Na3O7.2H2O is a consolidated base of the weak acid. It is obtained from combining the two molecules of water with the sodium salt of citric acid. It is used as a biological buffering agent, as it is can withstand changes in pH during any chemical reaction. Sodium citrate dihydrate is also known as citric trisodium salt dihydrate and trisodium citrate dihydrate. Derived from citric acid, it is available in granular form and is odorless and tastes salty. It is highly soluble in water and partially in moist air, but insoluble in alcohol. Sodium citrate dihydrate is a non-toxic and neutral salt, which is very low reactive. If it is preserved in favorable conditions, it reflects chemical stability in a great way.
Preparation of Sodium Citrate Dihydrate
It is highly bio-degradable and can be disposed of with the normal sewage process. It is prepared by neutralizing the citric acid with the highly pure sodium carbonate or hydroxide, accompanied by crystallization. Sodium citrate dihydrate can be categorized into monosodium citrate, trisodium citrate, and disodium citrate.
Uses of Sodium Citrate Dihydrate
Sodium Citrate Dihydrate is used in food industry as a flavoring agent and preservative. The consumption of the compound is considered as safe when consumed in restricted quantities. The other uses of the compound are as follows:
- The pharmaceutical industry, in order to prevent changes in pH.
- Buffering agent.
- Emulsifying agent.
- Alkalizing agent.
- Sequestering agent.
- Flavor enhancer.
Applications of Sodium citrate dihydrate
- Sodium citrate dihydrate is used as an emulsifying salt in processed cheese items. It is amalgamated with citric acid in order to offer exact pH control that is required for the applications in food and beverage industry.
- Most of the citrus or lime soft drinks utilize citric acid as an enhancer of tangy and zesty flavor. It also helps in maintaining the acidity level of the fruit juices. However, when citric acid is conjugated with sodium citrate dihydrate, it is capable of maintaining the flavor of the soft drinks without increasing the tanginess.
- Sodium citrate dihydrate helps in adding a tangy flavor to the medicines, which diminishes the foul taste of the medicine.
- Sodium citrate dihydrate is the sequestering agent that helps in removing the hardness of water and increases the cleaning action of a surfactant.
- In order to make the urine less acidic in nature, sodium citrate dihydrate is consumed in the form of medicine. When the urine is less acidic in nature, the kidneys are able to discard amino acid from the body easily. This result in the prevention of gout, kidney stones, and a few diseases related to kidney malfunction.
Sodium citrate dihydrate is the finest compound that has numerous utilities. It is not a part of the main ingredient in any industry but helps in the successful completion of the reactions. Sodium citrate dihydrate is segregated according to the various manufacturing processes. Most of the countries promote the production of the chemical in huge quantity, in order to meet the increasing chemical demands in a cost-effective way.