Ammonium metatungstate hydrate
Ammonium metatungstate hydrate, CAS 12333-11-8, with the formula (NH4)6H2W12O40 · xH2O, is a hydrated tungsten salt. This white to off-white crystalline powder serves as a crucial precursor in the synthesis of other tungsten compounds and finds utility as a catalyst in various chemical reactions. Its applications span materials science and inorganic chemistry, making it a valuable reagent for research and industrial processes.
Catalysis
Serves as a catalyst or catalyst precursor in various organic and inorganic reactions, leveraging the catalytic properties of tungsten.
Tungsten Compound Synthesis
Acts as a key intermediate for the production of other tungsten-containing materials and compounds, including tungsten oxides and metallic tungsten.
Materials Science
Utilised in the development of advanced materials, potentially for applications requiring specific thermal or electrical properties.
Chemical Synthesis
A versatile reagent in general chemical synthesis, offering a soluble source of tungstate ions for diverse chemical transformations.
| Molecular weight | 2956.30 (anhydrous basis) |
|---|---|
| Linear formula | (NH4)6H2W12O40 · xH2O |
| Assay | ≥85% WO3 basis (gravimetric) |
| Loss on drying | ≤15% loss on ignition |
| Impurities tested | ≤0.005% water-insoluble matter |
| Melting point | 100 °C (dec.)(lit.) |
Hazard statements
- H302Harmful if swallowed
- H318Causes serious eye damage
Precautionary statements
- 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) | 26-39-60 |
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 Ammonium metatungstate hydrate used for?
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Ammonium metatungstate hydrate is primarily used as a catalyst or catalyst precursor in various chemical reactions and as an intermediate in the synthesis of other tungsten compounds and materials.
What is the CAS number and formula for Ammonium metatungstate hydrate?
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The CAS number is 12333-11-8 and its linear formula is (NH4)6H2W12O40 · xH2O.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Ammonium metatungstate hydrate with an assay of ≥85% WO3 basis (gravimetric). This is a technical grade material and we do not represent it as USP, BP, or EP grade.
What are the safety considerations when handling Ammonium metatungstate hydrate?
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Ammonium metatungstate hydrate is classified as harmful if swallowed (H302) and causes serious eye damage (H318). When handling, it is essential to wear eyeshields, gloves, and a dust mask type N95 (US). Avoid dust formation and inhalation. It is also considered harmful to aquatic life with long-lasting effects (52/53).
How is Ammonium metatungstate hydrate packed and shipped?
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Ammonium metatungstate hydrate is carefully packed to ensure safe transit and is exported globally by Tech Serve Solutions, adhering to all relevant shipping regulations.
How can I request a quote or sample?
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To request a quote or a sample of Ammonium metatungstate hydrate, please contact our sales team via the website or directly by phone.
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