... metallurgy industry. 2. Used to produce Tetracycline, Oxytetracycline, Phenobarbital, and Borneol, etc. in pharmaceutical industry.3. Used to polish marble, remove ... reducing agent, bleaching agent, coloring agent etc. in dyeing and printing industry.5. Used to produce resin, Urea-formaldehyde ... bag, 23 mts/1×20containerStorage:Sealed, stored in ventilating and dry place, away from heat, fire, alkali ...