Sodium citrate is also known as sodium citrate, sodium citrate. This product is white cubic crystal or granular powder, odorless, cool, salty and slightly spicy. It can dissolve 1g (25ºC) in 1.5mL water, insoluble in ethanol and stable in air. Na3C6H5O7·5H2O (pentahydrate) loses crystal water at 1450ºC and becomes anhydrous, which will be decomposed when heated. No melting point, no boiling point. Rats were intraperitoneally injected with LD501549mg/kg. Can be used as acidity regulator, buffer, emulsifier, stabilizer.

Sodium citrate is the most important citrate, which is mainly produced by fermentation of starch substances and then neutralized with alkali substances, and has a variety of unique excellent properties.

Safe non-toxic

Because the raw material of sodium citrate is basically from grain, it is absolutely safe and reliable, and will not cause harm to human health. The Food and Agriculture Organization of the United Nations and the World Health Organization do not limit the daily intake of this product and it may be considered drug-free. [6]

Biodegradability

After being diluted by a large amount of water in nature, part of sodium citrate becomes citric acid, and both coexist in the same system. Citric acid is easily biodegraded by oxygen, heat, light, bacteria and microorganisms in water. It is generally converted into carbon dioxide and water by aconitric acid, itaconic acid and likanganhydride.

Complexing ability of metal ions

Sodium citrate has good complexing ability to metal ions such as Ca2+ and Mg2+, and also has good complexing ability to other metal ions such as Fe2+ plasma.

Other performance

Sodium citrate has excellent solubility and its solubility increases with the increase of water temperature. Sodium citrate has good pH regulation and buffering properties. Sodium citrate is a kind of weak acid and strong base salt, which can be combined with citric acid to form a strong pH buffer, so it is of great use in some occasions when the pH is not suitable for a wide range of changes. In addition, sodium citrate has excellent retarder and stability.