Sodium polytungstate
Sodium polytungstate (CAS: 12141-67-2) is a specialized inorganic salt with the formula 3Na2WO4 · 9WO3 · H2O and a molecular weight of 2986.01 g/mol. It is primarily utilised as a density gradient medium in cell biology for separation techniques. This compound is also known for its application in preparing heavy liquids for specific analytical procedures.
- IUPAC
- Sodium metatungstate,hexa-Sodium tungstate (W12)
Density Gradient Media
Sodium polytungstate serves as an effective medium for density gradient centrifugation in cell biology. It allows for the separation of cells and organelles based on their buoyant density.
Preparation of Heavy Liquids
This inorganic salt is employed in the formulation of heavy liquids. These solutions are critical for precise density measurements and sink-float analysis in various laboratory settings.
Hematology and Histology
Its properties make sodium polytungstate valuable in hematological and histological applications. It aids in sample preparation and analysis within these fields.
| Molecular weight | 2986.01 |
|---|---|
| Linear formula | 3Na2WO4 · 9WO3 · H2O |
| Assay | ≥85% WO3 basis |
| Grade | for sink-float analysispurum p.a. |
| Density | 3.1 g/cm3 at 20 °C (saturated aqueous solution) |
Hazard statements
- H302Harmful if swallowed
- H318Causes serious eye damage
- H412Harmful to aquatic life with long-lasting effects
Precautionary statements
- P273Avoid release to the environment
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 2 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22-41-52/53 |
| Safety statements (S) | 22-26-39-61 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Quality | for the preparation of heavy liquid |
|---|
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 Polytungstate used for?
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Sodium polytungstate is primarily used as a density gradient medium in cell biology for separation techniques and in the preparation of heavy liquids for analytical procedures.
What are the CAS number and formula for Sodium Polytungstate?
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The CAS number for Sodium Polytungstate is 12141-67-2, and its formula is 3Na2WO4 · 9WO3 · H2O.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Sodium Polytungstate in purum p.a. grade for sink-float analysis, with an assay of ≥85% WO3 basis, suitable for the preparation of heavy liquid. It is not supplied as USP, BP, or EP grade.
How should Sodium Polytungstate be handled safely?
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Handle Sodium Polytungstate with appropriate personal protective equipment, including a dust mask (type N95 US recommended), eyeshields, and gloves. It is harmful if swallowed, causes serious eye damage, and is harmful to aquatic life with long-lasting effects (H302-H318-H412).
Is Sodium Polytungstate a controlled substance?
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The provided data does not indicate that Sodium Polytungstate is a controlled substance.
How is Sodium Polytungstate shipped and exported?
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Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals and laboratory reagents, capable of handling international shipments of Sodium Polytungstate.
How can I request a sample or quote for Sodium Polytungstate?
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Please contact the Tech Serve Solutions sales team directly to request a sample or a quote for Sodium Polytungstate.
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