Sodium Hypophosphite, CAS 7681-53-0, is an inorganic hypophosphite salt used in electroless nickel plating and chemical reduction systems. For procurement review, confirm the hydrate state, active content, relevant impurity limits, and offered form, packaging, and applicable safety documentation.
Sodium Hypophosphite CAS 7681-53-0
- CAS: 7681-53-0
- Synonyms: Sodium hypophosphite; Sodium phosphinate; Sodium hydrogen phosphinate
- Einecs: 231-669-9
- Molecular Formula: NaH₂PO₂
- Grade: Confirm current product specification
- Package: Confirm packaging for the offered form
Product Description
Product name: Sodium Hypophosphite
CAS number: 7681-53-0
Molecular formula: NaH₂PO₂
Molecular weight: 87.98 g/mol
EC number: 231-669-9
Other names: Sodium hypophosphite; Sodium phosphinate; Sodium hydrogen phosphinate
Chemical class: an inorganic hypophosphite salt
Identity check: Sodium hypophosphite is also called sodium phosphinate and is identified by CAS 7681-53-0.
Sodium Hypophosphite is an inorganic hypophosphite salt used in electroless nickel plating and chemical reduction systems.
FAQ - Technical & Supply Chain
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Q:
Does CAS 7681-53-0 identify Sodium Hypophosphite Monohydrate?
A: Yes. Commercial sodium hypophosphite under CAS 7681-53-0 is commonly specified as NaH₂PO₂·H₂O. It should not be confused with hypophosphorous acid or sodium phosphite. State the hydrate, formula basis and CAS number because different names and assay calculations can otherwise produce an incorrect comparison of active reducing content. -
Q:
Which specifications matter for electroless nickel-grade Sodium Hypophosphite?
A: Agree assay and reducing-value basis, water-insoluble matter, chloride, sulfate, phosphite or phosphate, pH and application-relevant metals such as iron, calcium and heavy metals. Particle form and dissolution behavior may also affect solution preparation. Compare the batch COA and test methods with the plating-bath specification before qualification. -
Q:
How should bulk Sodium Hypophosphite be packed and documented?
A: Specify net weight, moisture-barrier liner, closure, palletization and acceptable caking because the monohydrate is deliquescent. Check seals and sample with limited exposure to humid air. Confirm the current SDS, lot traceability and destination-country import or precursor documentation before shipment, as regulatory controls can vary by market.
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