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Physical and Chemical Properties
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Physical State
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White crystalline,
hydroscopic
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Boiling Point
|
200°C (Decomposes)
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Solubility in Water
|
Soluble
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Vapor Density
|
5.5-8.5
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NFPA Ratings
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Health: 1;
Flammability: 1; Reactivity: 2
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Flash Point
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Not considered to
be a fire hazard but forms spontaneously flammable phosphine gas when
heated
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Stability
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Stable under
ordinary conditions but explosive in contact with oxidizers
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Applications
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|
Sodium Hypophosphite is used in formulating many
pharmaceutical products. It is a common reducing agent for metal plating.
It is a critical ingredient of electroless nickel plating solutions. It
is used as a water treatment agent and as a meat preservative. It is used
to prevent the discoloration of polymers. It is used to manufacture
hypophosphorous acid which has same application with Sodium
Hypophosphite. (But hypophosphorous acid has an advantage of easy
implementation in solution.).
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|
Sales Specification
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Appearance
|
White crystals
|
Sodium Hypophosphite
|
100.0% Min
|
Phosphite (Na2HPO3)
|
0.50% Max
|
Sulfate (SO4)
|
0.010% Max
|
Calcium (Ca)
|
0.0050% Max
|
Fe
|
0.0001% Max
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Chloride
|
0.010% Max
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Heavy metal (As Pb)
|
5
PPM Max
|
Arsenic (As)
|
1
PPM Max
|
PH
|
6-8
|
|
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Packing
|
In 25 KG plastic woven bags
|
.
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