Sodium Tungstate Dihydrate, CAS No. 10213-10-2

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10213-10-2

Catalog No. EBD33518

CAS 10213-10-2

Name Sodium Tungstate Dihydrate

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Basic Information

Synonyms: SodiumTungstateDihydrate Sodiumdioxido(dioxo)tungstenhydrate(2:1:2) tungsten,diolatodioxo-,sodiumsalt,hydrate(1:2:2) sodiumtungstate(VI)dihydrate Na2WO4·2H2O

Molecular Formula: H4Na2O6W

Molecular Weight: 329.85

MDL Number: MFCD00149190

Categories: Materials Chemistry > Inorganic and Functional Nanomaterials > Metal Oxide Precursors Synthetic Chemistry > Basic Synthetic Reagents > Inorganic Compounds and Metal Salts

Product Description:

Sodium tungstate dihydrate (Na₂WO₄·2H₂O) is an inorganic salt that appears as colorless, crystalline flakes or a white powder. It is highly soluble in water, forming a clear, colorless solution. The compound is a common source of tungstate ions (WO₄²⁻) and serves as a key precursor for various tungsten-containing materials. Its primary applications are in materials science and industrial chemistry. It is a crucial starting material for the synthesis of tungsten trioxide (WO₃), a widely studied semiconductor used in electrochromic devices, gas sensors, and photocatalysts. It is also used in the preparation of other tungsten-based compounds, phosphotungstic acid catalysts, and as a corrosion inhibitor. In analytical chemistry, it finds use as a reagent for the precipitation of alkaloids and proteins. The compound should be handled with care as it may cause irritation to the skin, eyes, and respiratory tract. Proper personal protective equipment is recommended during use.

Physical Properties

Melting Point: 698 °C(lit.)

Density: 4.18

Solubility: Water: 730 g/L (20 °C)

Analytical Data

Appearance: White to slightly yellow crystalline powder