Sodium citrate, also known as sodium citrate, is an organic compound with white to colorless crystals in appearance. We often see it in food additives, but in fact, its uses are far more than these. The sodium citrate produced by Desheng manufacturer is mainly used in blood collection tube additives, and we have also found traces of it in the virus preservation solution. Now Desheng takes you to learn more about the characteristics and uses of sodium citrate.
Characteristics of sodium citrate
Safe and non-toxic performance. Since the raw materials for the preparation of sodium citrate basically come from grain, it is absolutely safe and reliable, and will not cause harm to human health.
It is biodegradable. Citric acid is easily biodegraded in water by the action of oxygen, heat, light, bacteria and microorganisms.
It has the ability to complex metal ions. Sodium citrate has good complexing ability to Ca2+, Mg2+ and other metal ions, and it also has good complexing ability to other metal ions, such as Fe2+ ions.
Excellent solubility, and the solubility increases with the increase of water temperature.
It has good pH adjustment and buffering performance. Sodium citrate is a weak acid and strong base salt. It can be combined with citric acid to form a strong pH buffering agent, so it has important uses in some occasions that are not suitable for large-scale pH changes. In addition, it has excellent retarding performance and stability.
Application of sodium citrate
【Food Application】
Sodium citrate is non-toxic, has pH adjustment properties and good stability, so it can be used in the food industry. Sodium citrate is used as a food additive and has the greatest demand. It is mainly used as a flavoring agent, buffer, emulsifier, expansion agent, stabilizer and preservative, etc.; in addition, sodium citrate is compatible with citric acid for various jams, Gelling agent, nutritional supplement and flavoring agent for jelly, fruit juice, beverages, cold drinks, dairy products and cakes, etc.
【Pharmaceutical Application】
In medicine, sodium citrate is also widely used. Utilizing the properties of citrate and calcium ions to form soluble complexes, it can be used as an anticoagulant and blood transfusion agent to preserve and process blood products. Sodium citrate is used as a preservative and used to preserve syrups and other medicines.
【Chemical Application】
Sodium citrate has the characteristics of good water solubility, excellent chelating ability to Ca2+, Mg2+ and other metal ions in water, biodegradability, strong dispersion ability and anti-redeposition ability, so it is gradually becoming a substitute for sodium tripolyphosphate It is used to produce non-phosphorus washing powder, especially non-phosphorus liquid detergent. Adding a certain amount of sodium citrate to the detergent can significantly increase the decontamination ability of the detergent.
【Pandemic related】
In the fight against the new coronavirus epidemic, sodium citrate was used to prepare the virus preservation solution in the disposable virus sampling tube, and it was combined with guanidine hydrochloride, guanidine isothiocyanate, tris, Methylaminomethane hydrochloride, etc. are used in conjunction.
Desheng is a manufacturer with more than ten years of rich experience. It not only produces sodium citrate, an additive for blood collection tubes, but also develops and produces inactivated and non-inactivated virus preservation solutions during the epidemic, and they are in excellent quality conditions. The products are sold overseas.