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Sodium hypophosphite

Sodium hypophosphite structure

Sodium hypophosphite 

structure
  • CAS No:

    7681-53-0

  • Formula:

    H3O2P.Na

  • Chemical Name:

    Sodium hypophosphite

  • Synonyms:

    Phosphinic acid,sodium salt (1:1);Phosphinic acid,sodium salt;Sodium hypophosphite (NaH2PO2);Monosodium hypophosphite;Phosphinic acid monosodium salt;Sodium phosphinate;Hypophosphorous acid monosodium salt;Sodium hydrogen phosphite (NaH2PO2);Sodium hydrophosphite;Sodium phosphinate (NaH2PO2);Sodium hypophosphite;Sodium phosphate (NaH2PO2);Sodium phosphinite;Crosslink WC 205;14529-89-6;15883-32-6;174571-46-1;1007476-22-3

  • Categories:

    Cosmetic Ingredient  >  Antioxidant Ingredient

Description

white crystalline powder or colourless crystals

Sodium hypophosphite Basic Attributes

85.96

87.96900

231-669-9

2835100000

Characteristics

40.1

0.08820

odorless white crystals

1.388

Decomposes above 238 deg C (OECD Guideline 102)

Slightly soluble in ammonia and ammonium hydroxide

Keep well closed.

Though no interaction occurs in the cold, these powerful reducing and oxidizing agents violently explode on heating. /Perchloric acid & sodium phosphinate/

Bittersweet, saline taste

Safety Information

NONH for all modes of transport

2

17

WB5950000

Stable. Incompatible with strong oxidizing agents.

P264, P280, P302+P352, P305+P351+P338, P321, P332+P313, P337+P313, P362

H315

Sodium hypophosphite Use and Manufacturing

Methods of Manufacturing

Put the yellow phosphorus and slaked lime with a mass fraction ratio of 1:4 into the reactor in turn, add water to make a slurry, heat it up with stirring, until it reaches 90 ℃, keep it for a period of time, and stop the reaction when no gas is released. Remove unreacted solids. The filtrate is put into a stirred tank, and while stirring, carbon dioxide is bubbled into it, so that the calcium hydroxide dissolved in the filtrate generates calcium carbonate precipitation. Then add the sodium pudding aqueous solution to get the decomposition reaction, and take a sample to measure the end point (take the clear liquid and add the sodium carbonate solution, if there is no turbidity, it means the end point is reached). The material solution after the metathesis reaction is filtered to remove the calcium carbonate precipitate, and the filtrate is vacuum concentrated. When it reaches 20°Bé, it is filtered to remove the calcium carbonate precipitate. The solution is again concentrated in vacuum. When the surface shows a crystalline film, the evaporation is stopped. Put it into a crystallization tank for cooling, crystallize, centrifuge to remove the mother liquor, and dry to obtain a finished product.

Uses

Arsenic and iodate reagents. reducing agent. Clinical examination. Used for electroless nickel plating, and used in the pharmaceutical industry.

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