Description
Chinese name: citric acid/citric acid monohydrate/citric acid anhydrous
Generic name of drug: citric acid
English name: citric acid
Chemical name: 2-Hydroxy-m-propanetricarboxylic acid
English name 2: 2-hydroxy-1,2,3-propanetricarboxylic acid
CAS No.: 77-92-9
EINECS No.: 201-069-1
Molecular formula: C6H8O7
Molecular weight: 192.14
Appearance and Properties: White crystalline powder, odorless.
Melting point (°C): 153°C
Boiling point (°C): 175°C
Relative density (water=1): 1.6650
Flash point (ºC): 100
Ignition temperature (ºC): 1010.87 (powder)
Explosion upper limit % (V/V): 8.01333...(65ºC)
Dissociation constant (25ºC): Ka1=7.4×10^-4, Ka2=1.7×10^-5, Ka3=4.0×10^-7
Solubility: soluble in water, ethanol, acetone, insoluble in ether, benzene, slightly soluble in chlorine solution. The aqueous solution is acidic.
Complaint
