Technical Grade phosphoric acid may be used to produce variety of phosphates ,electrolyte treatment liquids or chemical treatment liquids ,refractory mortar with phosphoric acid and inorganic coheretant. It is also used as a catalyst ,eryingagent and cleaner .In coating industry it is used as a  rust -proof coating or metals ;As a acidity regulator and nutrition agent for yeast food grade phosphoric acid may be applied to flavors ,canned  food  and light drinks as well as used in wine brewery as a nutrients source for yeast to prevent the reproduction of useless bacteria.