1 Chemicals for General Industrial Use-Namely, Aluminum Fluoride, Sulphur Dioxide, Selenium, Selenium Compounds, Arsenic, Arsenic Compounds, Nickel Sulphate, Aluminum Sulphate, Sodium Phosphate, Sodium Sulphate, Calcium Phosphate, Fluosilicic Acid, Lead Oxide, Phosphoric Acid, Sulfuric Acid, Phosphoric Acid; Sodium Sulphate and Tripoly Phosphate for Detergents and Liquid Sulphur Dioxide Preparations; Arsenic Trioxide and Arsenic Salts for Herbicides and Insecticides; Arsenic Salts for Wood Preservatives and Lead Oxides; Sulphur, Pyrite Ore or Concentrate, and Metallic Arsenic