bids are invited for chemical ammonium acetate , ammonium iron ii sulfate hexahydrate , acetic acid glacial , azomethine h , ammonia solution , bromocresol green indicator solution , barium chloride dihydrate , calcium chloride dihydrate , hydrochloric acid , 2- propanol , methyl red indicator solution , potassium chloride , paraffin liquid light , phenolphthalein indicator solution , sulfuric acid , sodium acetate anhydrous , sodium hydrogen carbonate , ph buffer solution 4.01 , ph buffer solution 7.00 , ph buffer solution 9.00 , tri sodium citrate dihydrate , triethanolamine , ammonium chloride , potassium dichromate , potassium permanganate , magnesium oxide light , oxalic acid dihydrate total quantity : 227