Sodium citrate, also known as trisodium citrate, is an organic acid sodium salt. Its appearance is white to colorless crystals, has a cool salty taste, and is stable in the air. The chemical formula is C6H5Na3O7. It is soluble in water and difficult to dissolve in ethanol. The aqueous solution is slightly alkaline and is often used as a buffer, complexing agent, and used in food, beverages, electroplating, photography, etc.
At present, sodium bicarbonate is widely used in those products:
1. Food industry
Sodium citrate is mainly used as a food additive with the largest demand. It can also be used as a flavoring agent, swelling agent, stabilizer, buffer, and emulsifier. In addition, sodium citrate and citric acid can also be used as various Flavoring agents, gelling agents and nutritional supplements for pastries, cold drinks, juices, beverages, cold drinks, dairy
products and jams.
2. Construction industry
In the construction industry, sodium citrate can be added as a retardant when makingconcrete, which can improve the frost resistance, compression resistance and tensile resistance of cement products. Studies have shown that sodium citrate can also be used to remove sulfides in industrial exhaust gas.
3. Electroplating and manufacturing
Because sodium citrate has good complexing properties, it is also used in the electroplating industry. Neutral citrate nickel
plating has the advantages of environmental protection, pollution-free, easy maintenance, low corrosion, and excellent coating
performance.
4. Industrial cleaning
Due to the extensive use of sodium tripolyphosphate in the washing industry, washing wastewater contains a large amount of phosphate, causing red tides. Replacing sodium tripolyphosphate with sodium citrate can not only improve the decontamination effect, but also reduce environmental pollution. There are also special cleaning agents containing sodium citrate for cleaning vegetables and fruits.
Item Name |
Sodium citrate |
Description |
White or colorless crystalline granule or powder; odorless and taste salty. |
PH |
Meet the requirement |
Content (%) |
99.8 |
Light Transmittance (%) |
97.2 |
Moisture (%) |
12.2 |
Readily Carbonisablle Substance |
0.1 |
Sulphate (%) |
<0.01 |
Chloride (%) |
<0.005 |
Oxalate (%) |
<0.01 |
Calcium salt (%) |
<0.02 |
Iron salt (mg/kg) |
<5 |
Arsenic salt(mg/kg) |
<1 |
Lead (mg/kg) |
<2 |
Water Insoluble Substances |
Meet the requirement. |