Sodium phosphite dibasic pentahydrate
Sodium phosphite dibasic pentahydrate (CAS: 13517-23-2), with the chemical formula Na2HPO3 · 5H2O and a molecular weight of 216.04 g/mol, is a hydrated inorganic salt. It is commonly employed as a reducing agent in various chemical syntheses and industrial processes. This compound serves as a key intermediate in the production of other phosphite chemicals and finds utility in applications requiring a soluble source of phosphite ions.
- IUPAC
- di-Sodium hydrogen phosphite
Chemical Synthesis
Serves as a reducing agent and precursor in the synthesis of diverse organic and inorganic compounds. Its phosphite moiety can participate in various reactions, making it valuable for creating more complex molecules.
Industrial Water Treatment
Can be used as an oxygen scavenger in boiler water treatment to prevent corrosion. It reacts with dissolved oxygen, forming stable phosphate salts that do not contribute to scaling.
Metal Surface Treatment
Utilised in phosphating processes for metal treatment, improving corrosion resistance and paint adhesion on metal surfaces. It helps form a protective phosphate layer.
Laboratory Reagent
Employed as a general laboratory reagent for various analytical and preparative procedures where a source of dibasic sodium phosphite is required.
| Molecular weight | 216.04 |
|---|---|
| Linear formula | Na2HPO3 · 5H2O |
| Assay | ≥98% |
| Impurities tested | ≤0.001% heavy metals (as Pb) |
| Protective equipment | Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Cation traces | Fe: ≤10 mg/kg |
| Anion traces | chloride (Cl-): ≤50 mg/kgsulfate (SO42-): ≤50 mg/kg |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Sodium phosphite dibasic pentahydrate used for?
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Sodium phosphite dibasic pentahydrate is used in chemical synthesis as a reducing agent, in industrial water treatment as an oxygen scavenger, and in metal surface treatment for corrosion resistance and paint adhesion.
What is the CAS number and chemical formula for Sodium phosphite dibasic pentahydrate?
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The CAS number is 13517-23-2 and the chemical formula is Na2HPO3 · 5H2O.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Sodium phosphite dibasic pentahydrate with an assay of ≥98%. We do not represent this product as USP, BP, or EP grade.
How should Sodium phosphite dibasic pentahydrate be handled safely?
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When handling Sodium phosphite dibasic pentahydrate, it is essential to wear eyeshields and gloves. A type N95 (US) or type P1 (EN143) respirator filter should be used if dust is generated. Ensure adequate ventilation and avoid contact with skin and eyes.
Is Sodium phosphite dibasic pentahydrate a controlled substance?
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Based on the provided data, there is no indication that Sodium phosphite dibasic pentahydrate is a controlled substance.
How is this chemical packed and shipped?
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As a global supplier and exporter, Tech Serve Solutions ensures appropriate packaging and shipping methods in compliance with all relevant regulations for chemical products.
How can I request a quote or sample?
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To request a quote or sample of Sodium phosphite dibasic pentahydrate, please contact the TSS sales team through our website or by phone.
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