Sodium pyrophosphate dibasic
Sodium pyrophosphate dibasic (CAS: 7758-16-9, Na2H2P2O7) is a white crystalline solid with a molecular weight of 221.94 g/mol. It functions as an inorganic salt, often employed in chemical synthesis and materials science. This compound is recognised for its role as a buffer and chelating agent, finding utility in various laboratory and industrial applications where precise pH control and metal ion sequestration are required.
- IUPAC
- Disodium dihydrogen pyrophosphate,Sodium diphosphate dibasic
- Synonyms
- Disodium dihydrogen pyrophosphateSodium diphosphate dibasic
Chemical Synthesis Reagent
Utilised as a reagent in diverse chemical syntheses, facilitating specific reactions and acting as a precursor for other compounds. Its properties are valuable in controlled chemical processes.
Buffer in Chemical Processes
Serves as an effective buffering agent in various aqueous systems, maintaining stable pH levels critical for many chemical reactions and formulations. It helps to minimise fluctuations in acidity or alkalinity.
Materials Science Applications
Incorporated in materials science research and development, potentially influencing the properties of ceramics, metals, or other advanced materials. Its inorganic salt nature lends itself to material modification.
Laboratory Reagent
A standard laboratory reagent for analytical procedures, research experiments, and quality control testing where its specific chemical properties are needed.
| Molecular weight | 221.94 |
|---|---|
| Linear formula | Na2H2P2O7 |
| Assay | ≥99.0% (T) |
| Grade | practical grade |
| Solubility | H2O: soluble0.1 M at 20 °C, clear, colorless |
| pH | 3.5-4.5 (20 °C, 0.1 M in H2O, freshly prepared) |
| Loss on drying | ≤0.5% loss on drying, 200 °C |
| Impurities tested | insoluble matter, passes filter test |
Hazard statements
- H319Causes serious eye irritation
Precautionary statements
- P305IF IN EYES
| Protective equipment | Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter |
|---|---|
| Water hazard class (WGK, DE) | 1 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36 |
| Safety statements (S) | 26 |
| Cation traces | Ca: ≤100 mg/kgCd: ≤50 mg/kgCo: ≤50 mg/kgCu: ≤50 mg/kgFe: ≤50 mg/kgK: ≤500 mg/kgNi: ≤50 mg/kgPb: ≤50 mg/kgZn: ≤50 mg/kg |
| Anion traces | chloride (Cl-): ≤50 mg/kg |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Uv Absorption | λ: 260 nm Amax: 0.11λ: 280 nm Amax: 0.09 |
|---|
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 pyrophosphate dibasic used for?
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Sodium pyrophosphate dibasic is used as a reagent in chemical synthesis, a buffering agent in chemical processes, in materials science applications, and as a general laboratory reagent.
What are the CAS number and formula for Sodium pyrophosphate dibasic?
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The CAS number is 7758-16-9 and the chemical formula is Na2H2P2O7.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Sodium pyrophosphate dibasic in a practical grade with an assay of ≥99.0% (T). It is not represented as USP, BP, or EP grade.
How should Sodium pyrophosphate dibasic be handled safely?
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Sodium pyrophosphate dibasic is labelled with a GHS07 symbol and a Warning signal word. It causes serious eye irritation (H319). Personnel should wear eyeshields and gloves, and use a P1 (EN143) or N95 (US) respirator filter if necessary. In case of eye contact, rinse cautiously with water for several minutes (P305 + P351 + P338).
Is Sodium pyrophosphate dibasic a controlled substance?
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The provided data does not indicate that Sodium pyrophosphate dibasic is a controlled substance.
How is Sodium pyrophosphate dibasic typically packed and exported?
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As a global supplier, TSS exports chemicals worldwide, ensuring appropriate packaging and documentation for international shipment according to regulations.
How can I request a quote or sample for Sodium pyrophosphate dibasic?
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Please contact our sales department via the website or phone to request a quotation or a sample of Sodium pyrophosphate dibasic.
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