Description:
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Hypophosphorous acid (HPA), also known as phosphinic acid, is a phosphorus oxyacid and a strong reducing agent, with the molecular formula H₃PO₂.
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It is a colorless compound with a low melting point, available as deliquescent crystals or an oily liquid, and is soluble in water, dioxane, and alcohols.
- HPA has many applications:
– Reducing agent.
– Antioxidants.
– Catalysts.
– Color stabilizers.
– Surfactant.
Standards:
- Hypophosphorous acid concentration: 50 – 52%
- pH: 1.4
- Shelf-life: 3 years
Applications:
- HPA 50 % is used as a stabilizer system, buffer solution, pH regulator in pharmaceutical products, Calcium supplementation drinking products; and as antioxidants agent.
- Color stabilizers for chemicals and plastics.
- Used in production of Hypophosphite Salts (Calcium, Magnesium, Manganese, Potassium, Iron, and Ammonium) which are used in synthetic fibers as wetting dispersing, emulsifying, and anti-static agents.
- Chemical intermediate: used in organic synthesis and phosphinic acid production.
- Catalyst, neutralizing agent, antioxidants.
- Wetting agent, dispersing agent, emulsifiers in electroplating.





