Sulfanilic acid (4-aminobenzenesulfonic acid ) is an off-white crystalline solid which finds application in quantitative analysis of nitrate and nitrite ions. The solid acid exists as a zwitterion, and has an unusually high melting point. ==Synthesis== Sulfanilic acid can be produced by sulfonation of aniline: ==Applications== As the compound read...
C6H7NO3S Molar mass: 173.18968
[n] - a crystalline acid made from aniline and used as a dye
sulphanilic acid noun a crystalline acid made from aniline and used as a dye
a grayish-white, crystalline, slightly water-soluble solid, the para form of CHNOS, used chiefly as an intermediate in the manufacture of dyes.