chemical rate contract rate contract of chemical for tamil nadu pollution control board advanced environmental laboratories (aels) and district environmental laboratories (dels) , chemical list required , 1, 10_phenanthroline monohydrate , 4-aminoantipyrine , acetic acid (glacial) , acetic acid (glacial) , acetone - ar grade , aluminum potassium sulphate , aluminum ammonium sulphate , ammonia solution , ammonia solution , ammonium acetate , ammonium chloride , ammonium dihydrogen phosphate , ammonium ferrous sulphate , ammonium heptamolybdate , ammonium hydroxide , ascorbic acid , barbituric acid , barium chloride , barium perchlorate trihydrate , boric acid anhydrous , bromocresol blue indicator , bromocresol green indicator , bromothymol blue indicator , buffer capsules for ph 4 , buffer capsules for ph 7 , buffer capsules for ph 9.2 , calcium carbonate , calcium chloride dihydrate , carmine , charcoal activated powder , chloramine-t , chloroform , chloroform , copper sulphate , cresol red , curcumin , dextrose anhydrous , di chloro methane , di sodium tetra borate , dihydrogen potassium phosphate , diphenyl carbazide , dipotassium hydrogen ortho phosphate , disodium hydrogen ortho phosphate , dodecyl benzene sulphonic acid , edta (magnesium salt) , edta disodium salt , eriochrome black t , ethyl acetate , ethyl alcohol , ferric chloride (fecl3. 6h2o) , ferrous sulphate (iron ii sulphate) , formaldehyde , hexamethylenetetramine (ch2)6n4 - turbidity , hydrazine sulfate (nh2)2.h2so4 - turbidity , hydrochloric acid , hydrochloric acid, commercial , hydrogen peroxide, 30% , hydroxyl ammonium chloride , iodine resublimed , iso propyl alcohol , l - glutamic acid , magnesium chloride , magnesium sulphate , manganese chloride , manganese sulphate.2h2o , mercuric chloride , mercuric iodide , mercuric sulphate , methanol , methyl orange , methyl red , methylene blue , murexide (ammonium purpurate) , n-(1-naphthyl)-ethylenediamine dihydrochloride (neda) , n-hexane , nitric acid, conc , ortho phosphoric acid , oxalic acid , pararosaniline hydro chloride(imported) , perchloric acid 70% , petroleum ether 40 - 60oc , phenol , phenolphthalein indicator , phosphoric acid, 85% , potassium antimony tartrate , potassium bi-iodate , potassium bromate anhydrous , potassium chloride , potassium chromate , potassium cyanide , potassium dichromate , potassium dihydrogen ortho phosphate (kh2 po4) , potassium ferri cyanide , potassium hydrogen phosphate , potassium hydrogen phthalate , potassium hydroxide , potassium iodate , potassium iodide , potassium nitrate , potassium permanganate , potassium sulphate , pyridine , salicylic acid , silica gel (60-120 mesh) , silver nitrate , silver sulphate , sodium acetate trihydrate , sodium arsenite , sodium azide , sodium borohydride , sodium carbonate anhydrous , sodium chloride (nacl) , sodium dihydrogon ortho phosphate , sodium hydrogen carbonate , sodium hydroxide , sodium hypochlorite , sodium iodide , sodium metabisulphite , sodium nitrite , sodium nitroprusside , sodium oxalate , sodium phosphate monobasic monohydrate , sodium sulfide monohydrate , sodium sulphate anhydrous , sodium sulphide , sodium sulphite , sodium tetraborate , sodium thiosulphate , spadns [sodium 2-(parasulfophenylazo)-1,8-dihydroxy-3,6-naphthalene disulfonate] , stannous chloride , starch , sulphamic acid , sulphanilamide , sulphur trioxide , sulphuric acid concentrated , thorin (o-arsonophenylazo-6-disulfonic acid, disodium salt) , trisodium phosphate dodecahydrate , universal indicator solution , zinc acetate , zirconyl oxychloride , brilliant green bile broth , ec broth , macconkey broth , nutrient broth , azide dextrose broth modified , bile esulin azide agar (bea) , brain heart infusion broth/agar (bhi) , agar powder bacteriological grade