INDUSTRIAL CHEMICALS ACTIVATED CARBON AQUA REGIA BORAX CAUSTIC SODA COAGULANTS COPPER SULPHATE FLOCCULANT HYDRAZINE HYDROCHLORIC ACID LIME NITRIC ACID SMBS SODA ASH SODIUM CYANIDE BRIQUETTES SULPHUR GRANULES SULPHURIC ACID XANTHATES ZINC DUST ZINC SULPHATE