Hypophosphorous Acid

H3PO2

General information

Hypophosphorous Acid (Phosphinic Acid) is a water soluble, clear colorless liquid known for its strong reducing properties. Hypophosphorous Acid is widely used across the pharmaceutical, polymer, chemical and surface treatment industry. 

Packing Size: 50kg carboys, 250kg drums, 1000kg IBC

Hypophosphorous Acid H3PO2

Product Details

Chemical Name:

Hypophosphorous Acid

Molecular Weight:

66 g/mol

Molecular Formula:

H3PO2

CAS number:

6303-21-5

Concentration:

30% , 50% , or 80% (w/w)

SMILES:

O[PH2]=O

Synonyms:

Phosphinic Acid

Pubchem ID:

6326996

HS code:

28111920

Packaging

Specifications

Test

Result

Description

Clear Colorless liquid

Arsenic

<1 ppm

Lead

< 1ppm

Sulphate

< 10 ppm

Iron

< 30 ppm

Phosphorous Acid

< 0.5%

Calcium

< 50 ppm

Oxalate

< 5 ppm

Chloride

< 500 ppm

Applications

Chemical Synthesis

Widely used a reducing agent in various organic and inorganic chemical reactions. It is used in the manufacturing of phosphinate esters, reduction of arenediazonium salts and other organophosphorous compounds.

Polymer and Resin catalyst

Acts as a polymerization initiator in certain polymerization and polycondensation reactions.

Antioxidant and color stabilization

Acts as a color stabilizer in high temperature polymerization reactions. Serves as an antioxidant in synthetic resin preventing coloration and degradation during processing and storage. Helps prevent yellowing of resin due to UV induced degradation

Pharmaceutical Manufacturing

Used as a reducing agent in manufacturing of pharmaceutical intermediates, especially where selective reduction is required. Also stabilizes the compound and prevents oxidation in certain formulations.

Water Treatment and Metal Recovery

Used for reducing metal ions in industrial water treatment plants. It is used to recover precious metals from chemical solutions in selective extraction processes.

Agriculture

Used as a reaction intermediate for making herbicides and as a Phosphorous source in fertilizers.

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the Safety Data Sheet

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the Safety Data Sheet

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