bids are invited for activated charcoal , ammonium acetate ar grade - ammonium acetate a r grade , ammonium ferrous sulphate hexahydrate ar grade - ammonium ferrous sulphate hexahydrate a r grade , anhydrous sodium carbonate ar grade - anhydrous sodium carbonate a r grade , antimony potassium tartrate ar grade - antimony potassium tartrate a r grade , l- ascorbic acid ar grade - l- ascorbic acid a r grade , azomethine h reagent , barium chloride dihydrate a r grade , blotting paper , boric acid a r grade , buffer capsule ph 4 , buffer capsule ph 7 , buffer solution ph 4 , buffer solution ph 7 , calcium aas standard 1000 ppm a r grade , calcium chloride fused a r grade , calcium sulphate a r grade , conc sulphuric acid 98 percentage a r grade , conc hydrochloric acid a r grade 12 n , edta a r grade , ferroin indicator solution l r grade , hydrochloric acid 0.1 m a r grade , hydrogen peroxide , magnesium oxide a r grade , methylene blue indicator , paraffin wax , potassium aas standard 1000 ppm a r grade , potassium dichromate a r grade , potassium chloride a r grade , sodium acetate anhydrous a r grade , tri ethanol amine a r grade , methyl red indicator total quantity : 1064