Sodium hypophosphite distributors, manufacturers, exporters, and suppliers in India
Vizag chemical is one of the Sodium hypophosphite distributors, manufacturers, exporters, and suppliers in Visakhapatnam, Mumbai, Surat, Chennai, Ahmedabad, Pune, and Kolkata India. We are supplied to various industrial markets including Household, Institutional Cleaning, Personal Care, and Industrial sectors including Oil fields, Agriculture, Lubricants, Marine Industry, Metal Working chemical industry, and Coatings markets.
Sodium hypophosphite (NaPO2H2, also known as sodium phosphinate) is the sodium salt of hypophosphorous acid and is often encountered as the monohydrate, NaPO2H2·H2O. It is a solid at room temperature, appearing as odorless white crystals. It is soluble in water and easily absorbs moisture from the air.
Sodium hypophosphite should be kept in a cool, dry place, isolated from oxidizing materials. It decomposes into phosphine which is irritating to the respiratory tract and disodium phosphate.
2 NaH2PO2 → PH3 + Na2HPO4
Uses
Like other hypophosphites, sodium hypophosphite can reduce metal ions back into the base metal. This forms the basis for electroless nickel plating (Ni-P), which is its main industrial application. With this method, a durable nickel-phosphorus film can coat objects with irregular surfaces, such as in avionics, aviation, and the petroleum field.
Sodium hypophosphite is capable of reducing nickel ions in solution to metallic nickel on metal substrates as well as on plastic substrates. The latter requires that the substrate is activated with fine particles of palladium. The resulting nickel deposit contains up to 15% phosphorus.
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