The method of making hypophosphoric acid from phosphoric acid
If you want to get hypophosphoric acid (Hypophosphorous Acid) in phosphoric acid (Phosphoric Acid), when you understand the principles, follow the method.

Looking at the principles of chemistry, phosphoric acid, phosphorus-containing acid, has a specific structure and properties. To make hypophosphoric acid, you must adapt the method to change its structure and adjust the combination of its elements.

In the normal method, or use a certain agent to react with phosphoric acid. This agent can capture the number of oxygen in phosphoric acid, change the valence state of phosphorus, and cause phosphoric acid to form hypophosphoric acid. When reacting, observe the change in temperature and pressure. If the temperature is too high, it should be fast, but if it is too high, it may cause others to be mixed; if the pressure is also related to the direction and speed of the reaction, it must be carefully adjusted.

And in the reaction vessel, it is clean and suitable. The choice of material is related to the purity of the reaction. If the vessel is contaminated or impurities are introduced, the process will be chaotic, and the quality of hypophosphoric acid will be difficult to be good.

After the reaction is completed, the hypophosphoric acid should be obtained by fractionation. The method of distillation can be used to separate the hypophosphoric acid into the mixture according to the difference in boiling point. However, the temperature of distillation also needs to be carefully controlled to prevent the decomposition of hypophosphoric acid. Or by the method of extraction, with

When all these ends are made from hypophosphoric acid, it should be carefully reviewed and practiced.