purchase of chemicals chemicals for analytical purpose , chemicals , 2, 7 dichloro fluorescene ( 25g ) ar , abietic acid ( 100g ) ar , acetic anhydride ( 500g ) ar , alpha naphtyl amine hydrochloride ( 50g ) ar , ammoniacum resin ( 250g ) ar , ammonium cholride ( 500g ) ar , ammonium oxalate ( 500g ) ar , ammonium thiocyanate ( 500g ) ar , anhydrous sodium sulphate ( 500g ) ar , arsenous acid ( 500g ) ar , azo methane-h-sodium salt ( c17h22nnao3s2 ) ( 100g ) ar , barium chloridear ( 500g ) , boric acid ( 500g ) ar , bht, butylatedhydroxy toluene-reagent grade ( 100g / minimum pack size ) ar , calcium carbonate ( 500g ) ar , calcium chloride ( 500g ) ar , calcium chloride fused ( 500g ) , calcium hydroxide ( 500g ) ar , charcoal ( 500g ) ar , colophony resin ( 500g ) ar , chromium trioxide ( 500g ) ar , chromotropic acid ( 250g ) ar , chromotropic acid ( 25g ) ar , cobnaltous chloride ( cocl3-6h2o ) ( equivalent to 250mg metallic cobalt ) ( 100g ) ar , copper sulphate ( 500g ) ar , dextrose ( 500g ) ar , diammonium hydrogen phosphate ( 500g ) ar , diphenyl carbazide ( 100g ) ar , disodium para nitrophenyl phosphate ( 500g ) ar , dodecyl benzene sulphonic acid methyl ester ( tetra propylene type standard ) 100gar , edta ( 500g ) ar , edta ( 250g ) arar , ferric alum ( 500g ) ar , ferric alum ( 50g ) ar , ferric ammonium sulphate ( 500g ) ar , ferric chloride 500g ar , ferrous ammonium sulphate ( 500g ) ar , fluroglucinol ( 25g ) ar , formaldehyde ( 500ml ) ar , furfural ( 500g ) ar , galbalum resin ( 250g ) ar , graphited carbon black -acs ( 25g ) ar , hexa methylene tetramine ( 100g ) ar , heavy magnesium oxide ( 500g ) ar , hydrazine sulphate ( ( nh2 ) 2h2so4 ) ( 100g ) ar , hydrogen peroxide ( 500ml ) ar , hydrogen peroxide ( 1 l ) ar , iodine sublimed ( 100g ) ar , l-ascorbic acid ( minimum pack size ) ar , magnesium chloride ( 100g ) ar , magnesium oxide ( 250g ) ar , magnesium sulphate ( 500g ) ar , magnesium sulphate anhydrous 99.5%-acs ( 500g ) ar , maltodextrin ( 500g ) ar , mercuric chloride ( 250g ) ar , mercuric oxide ( 250g ) ar , monosodium dihydrogen phosphate ( 500g ) ar , n, n-dimethyl phenylene diamine oxalate ( 100g ) ar , ortho tolidine ( 500ml ) ar , pancreatin ( cas no. 8049-47-6 ) ( 4 × usp specifications ) ( mininum pack size ) , para dimethyl amino benzaldehyde ( 500g ) ar , paraffin wax- soft ( 500g ) ar , pepsin>400 units / mg protein ( minimum pack size ) ar , phenol ( 50g ) ar , phenol ( 500g ) ar , potassium chloride ( 500g ) ar , potassium chloride ( 100g ) ar , potassium chloro platinate ( equivalent to 500mg metallic platinum ) ( 100g ) ar , potassium chromate ( 500g ) ar , potassium chromate ( 250g ) ar , potassium dichromate ( 250g ) ar , potassium ferrocyanide ( 500g ) ar , potassium ferrocyanide ( 250g ) ar , potassium hexacyano ferrate ( 100g ) ar , potassium hydroxide ( 500g ) ar , potassium iodate ( 250g ) ar , potassium iodide ( 50g ) ar , potassium iodide ( 100g ) ar , potassium nitrate ( 100g ) ar , potassium permanganate ( 500g ) ar , potassium sodium tartarate tetrahydrate ( 500g ) ar , potassium sulphate ( 500g ) ar , potassium thiocyanate ( 500g ) ar , primary secondary amine ( psa ) ( 100g ) ar , primary secondary amine ( psa ) ( 500g ) ar , ptad ( 4 phenyl 1, 2, 4-triazolin 3, 5 dione ) ar ( 100mg ) ar , pumic stone granular ( 500g ) ar , pyrogallol ( 100g / minimum pack size ) ar , pyrogallic acid-crystals ( 100g / minimum pack size ) ar , quechers exraction kit aoac 2007.01 with centrifuge tubes ( 500 pouches / packet ) ar , quechers clean-up kit aoac 2007.01 2ml tube ( 500 pouches / packet ) ar , resorcinol ( 250g ) ar , rosalic acid ar 25g ar , silica gel ( powder ) ( 500g ) ar , silver nitrate ( 25g ) ar , sodium acetate anhydrous ( 500g ) ar , sodium acetate trihydrate ( reagent grade ) ( 500g ) ar , sodium arsenite ( 10g ) ar , sodium bicarbonate ( 500g ) ar , sodium carbonate ( 500g ) ar , sodium chloride ( 500g ) ar , sodium fluoride ( 100g ) ar , sodium hydroxide pellets ( 500g ) ar , sodium hydroxideflakes ( 500g ) ar , sodium hydroxideflakes ( 1kg ) ar , sodium hypo bromate ( 500g ) ar , sodium hypo bromite ( 500g ) ar , sodium hypochlorite ( 500ml ) ar , sodium metabisulphate ( 500ml ) ar , sodium nitrate ( 500g ) ar , sodium nitrite ( 100g ) ar , sodium phosphate monobasic ( 500g ) ar , sodium phosphate dibasic heptahydrate ( na2hpo4·7h2o ) ( 500g ) ar , sodium sulphate ( 100g ) ar , sodium thiosulphate ( 500g ) ar , sodium thiosulphate ( 100g ) ar , sodium tungstate ( 100g ) ar , starch soluble ( 500g ) ar , sulphanilamide ( 250g ) ar , sulphanilic acid ( 500g ) ar , takka diatase from aspergillus oryze- approx 1.5 units / mg ( alpha amylase ) ( minimum pack size ) ar , tetrahydrofuran ( 500ml ) ar , tfa ( trifluro acetic acid ( 500ml ) ar , thio glycolic acid ( 100g ) ar , tri sodium citrate ( 500g ) ar , tween 20 ( 500ml ) ar , tween 20 ( 100ml ) ar , white petroleum jelly ( 50g ) ar , zinc acetate ( 500g ) ar , zirconyl chloride octa hydrate ( 100g ) ar