... #: 69-72-7 Industrial grade& Medical grade Good quality priceSalicylic acid ( Technical Grade and medical grade)Chemical name: Benzoic acid,- ... and carbon dioxide when heated atmospherically,and its aqueous solution appears acid reaction,becomes purple with FeCl3.Slightly ... and ventilated place. We also have Salicylic acid medical grade, Sublimed Salicylic acid, Methyl Salicylate,Acetyl Salicylic acid, ...