Sodium Hypophosphite
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Sodium Hypophosphite General Information
Chemical Name: Sodium Hypophosphite
Synonyms: Sodium Phosphinate
Chemical Formula: NaPO2H2
Chemical Formula (monohydrate): NaPO2H2·H2O
CAS Number: 7681-53-0
CAS Number (monohydrate): 10039-56-2
EC Number (monohydrate): 231-669-9
Sodium Hypophosphite Uses
Electroless Nickel (EN) – Sodium Hypophosphite (SHP) acts as a reducing agent to supply the electrons necessary for the EN process. The EN process allows for uniform plating thickness on not only metal objects, but also plastics and ceramics.
Chemical Intermediate – Used as a raw material in the production of other products, including Hypophosphorous Acid. It may be used in synthetic organic chemistry, especially in deamination via reduction of diazo derivatives.
Reducing Agent – SHP may be used as a reducing agent or antioxidant in chemical processing.
Analytical Reagent – Sodium Hypophosphite can be as use as an analytical reagent.
Polymerization Catalyst – Used as a catalyst in some polymerization reactions.
Polymer Stabilizer – SHP is used as a stabilizer to prevent degradation of polymers during extrusion or in other heated processing.
Flame Retardant – Sodium Hypophosphite may be used as a partial fire retardant.
Ion Exchange Resin – It will provide a source of electrons in resin regeneration.
Sodium Hypophosphite Certificate of Analysis (COA)
Product Name: Sodium Hypophosphite, Mono
Quality: SMC Spec. 601
Batch: 100701/10547
| Test/Property | Specification | Result |
| Appearance | White Crystal | White Crystal |
| Arsenic (As), % | Less than 0.0001% | Less than 0.0001% |
| Assay, % | 102.00 % MINIMUM | 103.38 |
| Calcium (Ca), % | 0.0050 % MAXIMUM | 0.0018 |
| Chloride (Cl), % | 0.0031 | |
| Filtration test | PASS | PASS |
| Heavy Metals (as Lead), ppm | Less than 0.0002% | Less than 0.0002% |
| Iron (Fe), % | 0.00020 % MAXIMUM | 0.00004 |
| Lead (Pb), ppm | Less than 1 PPM | Less than 1 PPM |
| Na2HPO3, % | 0.50 % MAXIMUM | 0.19 |
| pH | 5.5 TO 8.5 pH scale | 7.0 |
| Sulfate (SO4), % | 0.0200 % MAXIMUM | 0.0036 |
CERTIFIED TRUE AND CORRECT W H
Approval Date: 7/28/2010
Spec Revision