ChEBI: A furoic acid having the carboxylic acid group located at position 2.
Crystallise the acid from hot water (charcoal), dry it at 120o for 2hours, then recrystallise it from CHCl3, and again dry it at 120o for 2hours. For use as a standard in volumetric analysis, good quality commercial acid should be crystallised from CHCl3 and dried as above or sublimed at 130-140o/50-60mm or less. [Beilstein 18 I 438, 18 II 265, 18 III/IV 3914, 18/6 V 102.]
white to light yellow crystal powde