industrial grade Appearance:White crystal Assayí¦99% Melting point:182-188ípC Ammonium salt as NH4CL í_0.5% Water insoluble matterí_0.15% Moistureí_0.3% Ashí_0.05% Water soluble test:OK Absorbency (UV280nm)í_0.02 Absorbency (UV260nmí_0.04 Qualified Grade,industrial grade Appearance:White crystal Assayí¦98% Melting point:178-182ípC Ammonium salt as NH4CL í_1.0% Water insoluble matterí_0.35% Moistureí_0.5% Ashí_0.15% Water soluble test:OK Absorbency (UV280nm)í_0.02 Absorbency (UV260nmí_0.04 Used as intermediate for medicine, pesticide, dyes and other organic composition, important material for producing sulfanilamides drugs and antistatic agent of synthetic fiber. 25KG/composite woven bag in 25KG/cardboard drum