A process for preparing sodium hypophosphite, comprising treating an aqueous mixture of calcium hydroxide and sodium carbonate with free phosphorus, the reaction mixture being heated at a temperature between about 70 and 100 C. for a plurality of hours to form an aqueous solution of sodium hypophosphite.
How do you make a hypophosphorous acid?
Hypophosphoric acid can be prepared by the reaction of red phosphorus with sodium chlorite at room temperature. A mixture of hypophosphoric acid, phosphorous acid (H3PO3) and phosphoric acid (H3PO4) is produced when white phosphorus oxidises in air when partially immersed in water.
How do you make h3po2?
Free hypophosphorous acid, H3PO2, is prepared by acidifying aqueous solutions of hypophosphite ions, H2PO2−. For example, the solution remaining when phosphine is prepared from the reaction of white phosphorus and a base contains the H2PO2− ion.
