Explore relationships

Citrate

Names IUPAC nameCitric acidPreferred IUPAC name2-Hydroxypropane-1,2,3-tricarboxylic acidIdentifiers CAS Number77-92-93D model (JSmol)Interactive imageChEBICHEBI:30769ChEMBLChEMBL1261ChemSpider305DrugBankDB04272ECHA InfoCard100.000.973EC Number201-069-1E numberE330 (antioxidants, ...)IUPHAR/BPS2478KEGGD00037PubChemCID31122230 (monohydrate)RTECS numberGE7350000UNIIXF417D3PSLCompTox Dashboard(EPA)DTXSID3020332InChIInChI=1S/C6H8O7/c7-3(8)1-6(13,5(11)12)2-4(9)10/h13H,1-2H2,(H,7,8)(H,9,10)(H,11,12)Key: KRKNYBCHXYNGOX-UHFFFAOYSA-NInChI=1/C6H8O7/c7-3(8)1-6(13,5(11)12)2-4(9)10/h13H,1-2H2,(H,7,8)(H,9,10)(H,11,12)Key: KRKNYBCHXYNGOX-UHFFFAOYAMSMILESOC(=O)CC(O)(C(=O)O)CC(=O)OProperties Chemical formulaC6H8O7Molar mass192.123g/mol (anhydrous), 210.14g/mol (monohydrate) Appearance white solid OdorOdorless Density1.665g/cm (anhydrous) 1.542g/cm (18°C, monohydrate) Melting point156 °C (313 °F; 429 K) Boiling point310 °C (590 °F; 583 K) decomposes from 175°C Solubility in water54%w/w (10°C) 59.2%w/w (20°C) 64.3%w/w (30°C) 68.6%w/w (40°C) 70.9%w/w (50°C) 73.5%w/w (60°C) 76.2%w/w (70°C) 78.8%w/w (80°C) 81.4%w/w (90°C) 84%w/w (100°C) SolubilitySoluble in acetone, alcohol, ether, ethyl acetate, DMSO Insoluble in benzene, CHCl3, CS2, tolueneSolubility in ethanol62g/100 g (25°C) Solubility in amyl acetate4.41g/100 g (25°C) Solubility in diethyl ether1.05g/100 g (25°C) Solubility in 1,4-dioxane35.9g/100 g (25°C) log P−1.64 Acidity (pKa) pKa1 = 3.13 pKa2 = 4.76 pKa3 = 6.39, 6.40pKa4 = 14.4 Refractive index (nD)1.493–1.509 (20°C) 1.46 (150°C) Viscosity6.5cP (50% aq.

Use + to expand a branch. Click a topic name to open its summary.