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CHEMICAL MANURE, FERTILIZERS, PLANT GROWTH REGULATORS, SYNTHETIC RESINS AND PLASTIC MATERIALS WHICH ARE IN POWDER, GRANULAR OR LIQUID FORM; INDUSTRIAL CHEMICALS-NAMELY, ALKALI (CAUSTIC SODA); ANHYDRIDES AND INORGANIC AND INORGANIC ACIDS (ARSENIC, HYDROCHLORIC ACID, SULPHURIC ACID, CHLOROSULPHURIC ACID, OLEUM); CITRIC ACID; ORGANIC CHLORINATED COMPOUNDS (CHLORAL MONOCHLORO-BENZENE, DDT, CARBON TETRACHLORENE); ACRYLONITRILE, ACETONITRILE; CHLORINE, SODIUM HYPOCHLORIDE, AMMONIA, SODIUM SULPHATE, CARBON DISULFIDE; AND BLEACHING EARTHS VIRGIN CRACKING DERIVATIVES (ETHYLENE, PROPYLENE, C4 STREAM OR CUT, HYDROGENATED PYROLITIC GASOLINE)