bids are invited for acetone - acetone , acetic acid glacial - acetic acid glacial , alcohol absolute (ethanol absolute 99.9%) - alcohol absolute (ethanol absolute 99.9%) , aluminium nitrate - aluminium nitrate , aluminum powder - aluminum powder , ammonia liquid (ammonia solution)(30%) - ammonia liquid (ammonia solution)(30%) , ammonium chloride - ammonium chloride , ammonium ferrous sulphate - ammonium ferrous sulphate , ammonium ferric sulphate - ammonium ferric sulphate , ammonium molybdate (ammonium heptamolybdate) - ammonium molybdate (ammonium heptamolybdate) , ammonium persulphate - ammonium persulphate , ammonium thiocyanate (ammonium sulphocyanate) - ammonium thiocyanate (ammonium sulphocyanate) , ammonium metavanadate - ammonium metavanadate , ammonium sulphate - ammonium sulphate , ammonium acetate - ammonium acetate , ammonium oxalate - ammonium oxalate , ammonium carbonate - ammonium carbonate , ammonium dihydrogen phosphate - ammonium dihydrogen phosphate , ammonium iodite - ammonium iodite , ammonium sulphide - ammonium sulphide , barium chloride - barium chloride , n-butyl acetate - n-butyl acetate , bromine - bromine , barium diphenylamine-4-sulphonate - barium diphenylamine-4-sulphonate , calcium oxide - calcium oxide , chloroform - chloroform , copper sulphate - copper sulphate , citric acid - citric acid , carbamate (disodium)/sodium diethyl dithiocarbamate - carbamate (disodium)/sodium diethyl dithiocarbamate , di sodium hydrogen phosphate - di sodium hydrogen phosphate , ethyl acetate - ethyl acetate , eriochrome black t - eriochrome black t , edta di sodium salt - edta di sodium salt , ferric chloride hexahydrated - ferric chloride hexahydrated , formaldehyde 37-41% w/v - formaldehyde 37-41% w/v , ferric nitrate - ferric nitrate , ferrous sulphate - ferrous sulphate , glass wool - glass wool , hydrochloric acid - hydrochloric acid , hydrogen peroxide 30% w/v (100 vol.) - hydrogen peroxide 30% w/v (100 vol.) , hydrofluoric acid 48% - hydrofluo