chemical products used in industry and science; acids; sulfuric acid; hydrochloric acid; hydrofluoric acid; alkalis; caustic alkali; caustic soda for industrial use; volatile alkali for industrial purposes; sodium; sodium salts [chemical compounds]; calcium; calcium salts; organic acid salts; flame retardants; water-purifying chemicals; water treatment chemicals; chemicals for industrial purposes; industrial chemicals; industrial organic chemicals; industrial silicon; fertilizer; soil amendments; chemicals for industrial use; fertilizers; chemical fertilizers; chemical additives for pesticides; additives, chemical, to insecticides; chemical additives for insecticides; chemical additives to insecticides; photographic chemicals; superphosphates [fertilizers]; superphosphate fertilizers; plant growth regulators; plant growth regulators for agricultural purposes; plant growth regulators for agricultural use; artificial sweeteners [chemical preparations]; artificial sweeteners for industrial purposes; artificial sweeteners for the food industry; fireproofing products; fireproofing chemicals; fire-extinguishing compositions; flocculants; flocculating agents; organosilanes; phosphoric acid; organophosphorus compounds; dimethyl sulfate; phosphorus; potassium; phosphates; phosphates [fertilizers]; inorganic chemical compounds; inorganic acids; inorganic fertilizers; inorganic fertilisers; plastics, unprocessed; tanning substances; industrial adhesives; adhesives used in industry; biochemical catalysts; enzymes for industrial use; enzymes for industrial purposes; antioxidants comprising enzymes for industrial purposes