反应详情

Separately, a heteropoly acid solution of phosphomolybdic acid (PMA) is prepared by adding 47.5 parts of anhydrous sodium molybdate and 5 parts of anhydrous disodium phosphate to 2100 parts of water at 75° C., stirring to solution, and then adding 58 parts of 31.5% hydrochloric acid to a pH of about 1.8.