High Purity pharmaceutical intermediates Low price Hypophosphorous acid CAS 6303-21-5

Product content

Melting point   -25 °C
Boiling point   108 °C (759.8513 mmHg)
density    1.206 g/mL at 20 °C(lit.)
vapor pressure    <17 mmHg ( 20 °C)
storage temp.  no restrictions.
pka pK1 1.1.
form hygroscopic crystals or colorless oily liquid
color Colorless
Water Solubility SOLUBLE

other

Hypophosphorous acid is a reducing agent. Strong monobasic acid. The aqueous solution is acidic and can gradually oxidize in air at room temperature. Contact with H pore forming agent can cause combustion. Burning due to intense reaction with oxidants. Phosphine gas, which is highly toxic due to high thermal decomposition, even explodes. Corrosive. Hypophosphorous acid is often added to cool drinks because it is not absorbed. So the danger is small, but the Hypophosphorous acid with a very strong concentration will harm the gastrointestinal tract. Heating the solid acid to 130-140 ℃ results in disproportionation and decomposition into PH3 and H3PO4.

Hypophosphorous acid, also known as "hypophosphite", colorless oily or deliquescent crystal, is an important product of fine chemical industry. It is mainly used as a reducing agent for electroless plating to prevent discoloration of phosphoric acid resin, as well as as a catalyst and refrigerant for esterification reaction, especially for the production of high-purity Sodium hypophosphite. There are many preparation methods, among which the common preparation methods in industry are ion exchange resin method and Electrodialysis method.

Uses

1. Hypophosphorous acid is used as reducing agent for electroless plating;
2. It can be used to prevent discoloration of phosphoric acid resin;
3. It is used as esterification catalyst, the refrigerant;
4. It is used to produce hypophosphite, sodium salts, manganese salts, iron salts are generally used as nourishing substances;
5. Hypophosphorous acid is used in medicine and as reducing agent, the determination of arsenic, tellurium and separation of tantalum, niobium and other reagents.
6. It is strong reducing agent, It can be used for the preparation of sodium hypophosphite, calcium phosphate and other hypophosphite.
7. It can be used for the plating bath. Pharmaceuticals. reducing agent. general reagents.
8. It is strong reducing agent, it can be used in making sodium hypophosphite, calcium phosphate and other hypophosphite.
9. This product is widely used as reducing agent, Ag, Cu, Ni, Hg and other metals are reduced to the corresponding metal, for the verification of As, Nb, Ta a