purchase of chemicals purchase of chemicals , chemicals , aluminium sulphate ( 500gm ) , ammonia buffer solution ( 500ml ) , ammoniumchloride ( 500gm ) , barium chloride ( 500gm ) , borax powder ( 500gm ) , buffer tablet 4.0 ( 10 tablets ) , buffer tablet 7.0 ( 10 tablets ) , buffer tablet 9.2 ( 10 tablets ) , cadmium sulphide ( 500gm ) , chlorotex reagent ( 100ml ) , chromium ( iii ) oxide ( 500gm ) , concentrated hydrochloric acid ( 5ltrs ) , concentrated sulphuric acid ( 5 ltrs ) , di potassium hydrogen phosphate ( 500 gm ) , edta di sodium salt ( 100 gm ) , erichrome black t ( 25 gm ) , ethanol ( lab use ) ( 500ml ) , ferric chloride ( 500gm ) , ferroin indicator ( 100ml ) , ferrous ammonium sulphate ( 500gm ) , filter paper , first aid dettol , hexamine pure ( 500 gm ) , hydrazinium sulfate ( 100 gm ) , iron oxide ( 500gm ) , laboratory cleaning detergent ( 500gm ) , laboratory glass beads for cod test ( 500 gm ) , laboratory glass wares cleaning liquid ( 500 ml ) , magnesium sulphate ( 500 gm ) , manganous dioxide ( 500gm ) , manganous sulphate ( 500gm ) , mercuric sulphate ( 25 gm ) , methyl orange indicator ( 125ml ) , methyl orange ( 25gm ) , methyl red indicator ( 125ml ) , nickel ( ii ) chloride ( 500gm ) , phenolphthalein ( 100gm ) , phenolphthalein indicator ( 125ml ) , potassium chromate ( 500gm ) , potassium di hydrogen phosphate ( 500gm ) , potassium dichromate ( 500gm ) , potassium hydroxide pellets ( 500 gm ) , potassium iodide ( 500gm ) , silver nitrate ( 25gm ) , silver sulphate ( 25gm ) , sodium azide ( 25gm ) , sodium chloride ( 500gm ) , sodium hydrogen phosphate ( 500 gm ) , sodium hydroxide pellets ( 5kg ) , sodium iodide ( 25gm ) , sodium silicate ( 25ltrs ) , sodium sulphate ( 500gm ) , sodium thio sulphate ( 500gm ) , starch ( 500gm ) , tannic acid ( 500gm ) , tannic acid ( 500ml ) , tissue paper roll , zinc sulphate ( 500gm )