bids are invited for dextrose anhydrous - extra pure 5 kg pack, d + glucose , sodium chloride - 99.5 percent extra pure 5 kg pack common salt halite rock sal sodium chlorict table salt , potassium chloride - 99percent extra pure 5 kg pack , ferrous sulphate heptahydrate - 98.5percent extra pure 5 kg pack iron ii sulphate heptahydrate , ferric sulphate hydrate - extra pure 500g pack iron iii sulphate hydrate , manganese ii sulphate monohydrate - 98percent extra pure 5 kg pack manganous sulphate , calcium carbonate - 98percent extra pure 5 kg pack , ammonium sulphate - 98.5percent extra pure 5 kg pack diammonium sulphate mascagnite , sodium molybdate dihydrate - 98percent extra pure 1 kg pack molybdic acid sodium salt dehydrate , glycerine glycerol - purified extra pure 98percent 2 and half ltr pack 1 2 3 propanetriol glycerin , di potassium hydrogen ortho phosphate potassium phosphate dibasic anhydrous - extra pure purified 98percent 500gm pack , sucrose - extra pure purified 5 kg pack d + saccharose sugar , yeast extract powder - 60percent for bacteriology 500 gm pack water soluble fraction of yeast autolysate standard material for culture media rich in b vitamins and growth factors , magnesium sulphate heptahydrate - extra pure purified 99percent 500gm pack extra pure epsom salt , tri calcium phosphate calcium phosphate tribasic - extra pure or purified 5 kg pack , agar agar bacteriological grade - 500gm pack , buffer standard solution ph 4 - color coded red at 25degree celcius traceable to nist , buffer standard solution ph 7 - color coded yellow at 25degree celcius traceable to nist , buffer standard solution - ph 9.18 at 25degree celcius traceable to nist , buffer standard solution ph 10 - color coded-blue at 25 degree celcius traceable to nist , methanol - 99.5percent extra pure methyl alcohol , acetone - 99.5percent ar acs propanone dimethyl ketone , oxalic acid - 99.5percent ar acs ethanedioic acid , formaldehyde solution - 37percent ar acs formalin stabilize