Tender For supply of potassiumphosphatedibasic anhydrous lr , ammonium sulphate ar 500gm , potassium nitrate ar 500gm , dimethyl sulphoxide specially dried ar 500ml , potassiumdihydrogen orthophosphate ar 500gm , molyclean ma 05 neutral phosphate free equivalent to labolene , formaldehyde solution 37-41 percentage w v , potassium permanganate 99 percentage ar