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Hypophosphorous Acid ( Phosphinic acid Phosphonous ) HPA Solution in Water 50% - 500ml
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 HPA Solution in Water 50% - 500ml "Pin It")
Description
Hypophosphorous Acid (H₃PO₂) 50% Aq.
CAS Number: 6303-21-5
Description:
Hypophosphorous acid is a colorless or slightly yellow liquid with a faint odor. It is a strong reducing agent and is commonly used in industrial and laboratory applications. Its primary uses include metal surface treatments, electroless plating (especially for nickel), and as a reducing agent in various chemical syntheses.
Chemical Properties of pure hypophosphorous acid:
- Molecular Formula: H₃PO₂
- Molar Mass: 66.00 g/mol
- Appearance: Colorless to slightly yellow liquid
- Solubility: Highly soluble in water and alcohol
- Melting Point: Approximately 26.5°C (freezes to form a solid)
- Boiling Point: Decomposes upon heating
- Density: 1.49 g/cm³
Applications:
- Electroless Plating: Widely used in nickel electroless plating to deposit nickel coatings without using an electric current.
- Reducing Agent: Employed as a strong reducing agent in organic and inorganic chemical reactions.
- Metal Treatment: Used for metal surface treatments, including cleaning and preparation for coating or plating.
- Chemical Synthesis: Involved in the production of phosphine derivatives and other specialized chemicals.
Safety and Handling:
Signal word Danger
Hazard statement(s) H314 Causes severe skin burns and eye damage.
Precautionary statement(s) P280 Wear protective gloves/ protective clothing/ eye protection/ face protection. P305 + P351 + P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P310 Immediately call a POISON CENTER/doctor. Supplemental Hazard Statements: none