purchase of routine general chemicals- 1 acetic acid, glacial 2 acetone 3 ammonia liquid 4 ammonium acetate 5 ammonium chloride 6 ammoinum molybdate 7 barium chloride 8 calcium carbonate ( anhydrous ) 9 cobaltous chlroide 10 chloroform 11 di-sodium ethylenediamine tetra acetate ( edta ) 12 erichome black t 13 ferrion indicator 14 ferric chloride 15 glycerol 16 hydrochloric acid 17 hydroxylamine hydrochloride 18 iodine 19 ethyl alochol 20 methyl orange indicator 21 mercuric ioide 22 alpha- naphthylamine hydrochloride 23 ortho phospheric acid 24 oxalic acid 25 1-10 phenanthroline , monohydrate 26 petroleum ether 27 phenolphthalein indicator 28 potassium permanganate 29 potassium dichromate 30 potassium ioide 31 silver nitrate 32 sodium chloride 33 sodium acetate 34 starch 35 sodium hydroxide 36 zinc sulphate 37 sodium thio sulphate 38 sulphuric acid 39 potassium chromate 40 2 propanol 41 zinc acetate 42 potassium dihydrogen orthophosphate 43 silver sulphate 44 ferrous sulphate 45 mercuric sulphate 46 magnesium sulphate heptahydrate 47 pyrocatechol violet 48 hexamethylene tetramine 49 poatassium aluminium sulphate didecahydrate 50 sodium nitroprusside dihyadrated 51 sodium dichloroisocyanurate dihydrate 52 tri-sodium citrate dihydrate 53 sodium salicylate 54 1.5 - diphenyl carbazide 55 ethanol 96% 56 chloramine -t trihydrate 57 1, 3 -dimethyl barbituric acid 58 4-pyridine carboxylic acid 59 sodium acetate trihydrate 60 alizarin -3-methylemne n , n-di acetic acid dihydrate 61 cerium ( iii ) nitrate hexahydrate 62 copper ( ii ) sulphate pentahyrate 63 zinc sulphatehepthaydrate 64 hydrazinium sulphte 65 sulfanilamide 66 n- ( 1-naphthy ) ethylenediamine dihydrochloride 67 sodium pyrophospate decahdyrate 68 sodium nitrate