It is used as experimental reagent, chromatographic analysis reagent and biochemical reagent, as well as buffer preparation. It is used in food industry, especially as acidifier, PH buffer, and other compounds as preservatives.
Multiple Names
2-Hydroxy-1,2,3-Propanetricarboxylic Acid;
Citric Acid, Anhydrous;
1,2,3-Propanetricarboxylic Acid, 2 Hydroxy-;
Citric Acid Anhydrous;
Citric Acid Anhydride;
2-Hydroxypropane-1,2,3-Tricarboxylate.
CAS No. 77-92-9
EC No. 201-069-1
MF No. C6H8O7
MW No. 192.122
Assay Item | Standard |
Form | grit |
Color | White |
Acidity Coefficient (pKa) | 3.14(at 20℃) |
Melting Point | 153-159 °C (lit.) |
Refractive Index | 1.493~1.509 |
density | 1.67 g/cm3 at 20 °C |
1. Citric acid is widely distributed in nature.
2. It is widely used in the food industry as an acid, solvent, buffer, antioxidant, deodorant, chelating agent, etc.
3. The stability of frozen food can be reliably guaranteed.
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