DESCRIPTION WHITE TO GRAY POWDER SOLUBILITY IN SODIUMC CARBONATE SOLUTION % OF FREE ANILINE CONTENT 0.50% MAXIMUM INSOLUBLES & CARBONS 0.5% MAXIMUM % OF CARBON CONT 0.5% MAXIMUM ASH CONTENT 0.5% MAXIMUM AMINE CONTENT BY TLC TEST ISOMERS BY TLC BY TLC TEST % SULPHANILIC ACID 98.0% To