bids are invited for acetic acid glacial ar , ammonia solution - 25% , ammonium chloride , chlorofrom , edta solution - (n/50) , hydroxyl amine hydrochloride ar , methanol ar , petroleum ether - (40-60 dec c) , potassium dichromate ar , sodium acetate ar , sodium hydroxide - (pallets) , sodium sulphate - (anahydrous) , 1,10-phenanthroline , hexamine ar , hydrazine sulphate , sodium sulphite ar , pot. permanganate , sulphuric acid - ar , buffer capsules ph 4.0 - ph 4.0 , buffer capsules , ph 7.0 , buffer capsules , ph 9.2 , calcium chloride , iso octane spectroscopic grade , ph paper - (ph range 1 to 14 ) , xylene analar , methyl orange indicator , phenolphthalein indicator ar , edta disodium salt ar , sulphuric acid - (n/50) solution ar , ammonium ferrous sulphate , silica gel - (60-120) mesh , potassium chloride a.r. , silver nitrate - (solid) , acetone ar , potassium chromate , toluene ar , ethyl methyl ketone , hexamethylene tetra-amine , eriochrome black-t , calcium carbonate a.r grade , nitric acid ar , potassium thiocyanate ar , potassium hydroxide , n-heptane , barium chloride , hexane , iso propyl alcohol , silver nitrate solution - (0.02 n) , silicon grease , sodium chloride , sodium accetate trihydrate total quantity : 308007