Sodium Tungstate Dihydrate is an inorganic chemical used in many fields for laboratory and Research and Development in the chemical industry, medical industry, metal and textile industries, glass industry and many others.

High Purity Sodium Tungstate Dihydrate is available in the form of a white, crystalline  powder. It is usually used in the synthesis of inorganic compounds, (in polyoxometalates synthesis). Sodium tungstate dihydrate is also used as a catalyst or as a catalyst precursor in several organic reactions (epoxidation, cleavage of double bonds, oxidation of alcohols, amines, imines, organosulfur compounds, halogenation of aromatic compounds, synthesis of β–aryl vinyl bromides and synthesis of 1-H-tetrazoles).

Available Grades: 98%, 99.5%, 99-101% (ACS Grade)

99.0 – 101.0% Pure, ACS Grade

Formula                                         Na₂WO₄-2H₂O

Molecular Weight                        329.86

Appearance/form                       Crystalline Powder

Assay                                              99-101% (ACS Grade)

pH                                                   9.0 – 11.5 (25^oC, 1M in H₂O)

Density                                           3.25 gm/cm³

Heavy Metals and iron (As Pb)   0.001% max.

Molybdenum (Mo)                       0.001% max.

Chloride (Cl)                                  0.005% max.

Sulfate (SO4)                                 0.01% max.

Insoluble Matter                           0.01% max.

Titratable Free Base                    0.02 ,eq/g max.

                                           This material is not regulated for DOT or IATA/IMDG transport. (Non-Hazardous)

                                           Shelf Life: 60 months

                                           Storage: Store at cool room temperatures in a dry location.

Safety Data Sheet (pdf)