Product name:3-Nitrobenzoic acid
CAS:121-92-6
Molecular Formula:C7H5NO4
Formula Weight:167.12
Specification:25g
Description:
3-Nitrobenzoic acid is whiteish yellowish monoclinic leaf crystal. The temperature of 142 ° C, the relative density of 1.494 (20 / 4 ° C). Soluble in acetone, chloroform, ethanol and ether, slightly soluble in benzene, water, carbon disulfide and petroleum ether, mostly soluble in hot water. There is almond smell.
3-Nitrobenzoic acid production method: industrially using benzoic acid as raw material, and nitrating with sodium nitrate in the presence of sulfuric acid, the yield can reach 60%. If benzoyl is esterified to methyl benzoate with methanol in the presence of sulfuric acid, then nitrated with a mixed acid, and then hydrolyzed, production by this method is somewhat troublesome, but the yield can be as close as 70%. It can also be obtained by direct nitration of mixed acid. The yield is about 60%.
3-Nitrobenzoic acid is an intermediate for photosensitive materials, functional pigments, and pharmaceuticals. Used in the pharmaceutical industry to produce biliary acid, vinegar, and the like.