PHOSPHORIC ACID PURIFICATION BY PRODUCTION OF 1:1 DIISOPROPYL ETHER PHOSPHORIC ACID COMPOUND

摘要

A novel solid anhydrone crystalline compound of phosphoric acid and diisopropyl ether of the formula: H3PO4 - ¢(CH3)2CH!2O is prepared from a mixture of the ether and phosphoric acid in a molar ratio (R:1) of 0.6:1 to 1.4:1 at a temperature at least as low as the crystalliration temperature (T.degree.C) governed by the realationship T = 25(1.2-R). Treatment of the compound with water or a base produces purified acid or a phosphate respectively.