Description

Lithium Metatungstate is a high-density, water-soluble inorganic salt with the chemical formula Li6H2W12O40·xH2O. It is valued for its exceptional ability to form heavy aqueous solutions used for density separation and mineral processing. This product is essential for industries requiring precise and efficient material fractionation based on specific gravity, such as geology, mining, and advanced materials research.

Application

• Mineral Separation & Ore Dressing: As a non-toxic, high-density liquid medium for sink-float separation of minerals, gemstones, and industrial sands.
• Geological & Paleontological Research: For separating microfossils, spores, pollen, and specific mineral grains from sediment samples.
• Recycling & Waste Processing: To separate and recover valuable components from electronic waste (e-waste), plastics, and composite materials.
• Ceramics & Advanced Materials: Used in the formulation of specialized coatings, ceramics, and as a precursor for tungsten-based compounds.
• Laboratory Analysis: As a density gradient medium for analytical techniques in life sciences and materials science.
• Shielding & Ballast Fluids: In specialized applications requiring high-density, radiation-attenuating, or ballast fluids.

Basic Information

Product Name	Lithium Metatungstate
CAS No.	12411-56-2
Molecular Formula	Li6H2W12O40·xH2O
Molecular Weight	Contact for details (Anhydrous: ~2876.2 g/mol)
Synonyms	Lithium Tungstate, Metatungstate; Lithium Polytungstate; LMT; Lithium Metatungstate Hydrate; Lithium 12-Tungstometallate; Heavy Liquid Lithium Metatungstate; Sodium Metatungstate Substitute; LST (Lithium Sodium Tungstate variant)
EINECS	Contact for details

Quality Control

Our Lithium Metatungstate is manufactured under a strict quality management system. Each batch is tested to ensure consistent density, purity, and solution clarity, which are critical for reproducible separation efficiency. A Certificate of Analysis (COA) detailing key parameters such as assay, density, pH, and insoluble matter is provided with every shipment to guarantee it meets your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive). Keep the container tightly sealed when not in use to prevent absorption of atmospheric moisture, which can alter the solution density and properties.

Specification

Item	Specification
Appearance	White to off-white crystalline powder or clear aqueous solution
Identification (IR)	Conforms to standard
Assay (Li6H2W12O40)	≥ 95.0%
Density (20°C, aqueous solution)	Adjustable, typically up to 2.95 g/cm³
pH (5% solution)	3.0 - 5.0
Insoluble Matter	≤ 0.1%
Chloride (Cl)	≤ 0.01%
Sulfate (SO4)	≤ 0.01%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.