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sodium tungstate dihydrate molecular weight

  • sodium tungstate dihydrate molecular weight
  • sodium tungstate dihydrate molecular weight
  • sodium tungstate dihydrate molecular weight

sodium tungstate dihydrate molecular weight

    Packaging: Bag/Drum
    Productivity: 8000kg
    Brand: leji
    Transportation: Ocean,Land,Air,Express
    Place of Origin: china
    Supply Ability: 8000kg
    Certificate: ISO9001
    Port: shanghai,qingdao,tianjin

Product Description

Chinese name: Sodium tungstate
Chinese synonyms: sodium tungstate; sodium tungstate, dihydrate; sodium tungstate dihydrate; sodium tungstate dihydrate; sodium tungstate dihydrate; sodium orthotungstate; sodium tungstate dihydrate, ACS99.0-101.0 %; sodium tungstate 2 water
English name: Sodium tungstate dihydrate CAS number: 10213-10-2 Molecular formula: H4Na2O6W Molecular weight: 329.85
EINECS Number: 236-743-4
Related categories: Cp molybdenum, titanium, tungsten, vanadium, zirconium; inorganic chemical products; Inorganic Salts; textile dyeing and printing auxiliaries; textile dyeing and finishing auxiliaries; Chemical Auxiliaries; metal tungstate; rare metals; catalysis
and Inorganic Chemistry: General Reagents: Tungsten: Biochemistry: Inorganic Compounds and Salts; Biochemical Reagents
Mol file: 10213-10-2.mol
sodium tungstate
Sodium tungstate Chemical Properties
Melting point 698℃(lit.) Density 4.18
Solubility H2O:1M at 20°Cclear colorless
Water solubility 730g-L(20 oC)
Merck 14.8698
CAS Database 10213-10-2 (CAS DataBase Reference
Sodium tungstate Usage And Synthesis
Toxicity Sodium tungstate is more toxic than other tungsten compounds. Its allowable concentration is 1mg-m3. Others see tungsten trioxide,
Chemical properties Colorless crystal or white orthorhombic crystal. Soluble in water, slightly alkaline. Insoluble in ethanol, slightly soluble in ammonia.
Uses Dry metal tungsten, tungstic acid, tungstate, dyes, inks, catalysts, etc.
Uses It is used in the manufacture of metal tungsten, tungstic acid and tungstate. Used as mordant, pigment and catalyst. It can also be used as fabric fire retardant and analytical chemical reagent.
It is mainly used in the manufacture of metal tungsten, tungsten and tungstate, as well as in dyes, pigments, inks, electroplating, etc. It is also used as a fire retardant and catalyst for fabrics and cellulose. Plating grade and
Uses such as catalysts must select analytical grade.
Uses This product is used as a fabric auxiliary, and the mixture composed of sodium tungstate, ammonium sulfate, ammonium phosphate, etc. is used for fireproofing and waterproofing of fibers. This fiber can be made into fire-resistant rayon and rayon. also available
For fabric weighting, leather tanning, electroplating anti-corrosion. This product can be used as a co-solvent to introduce enamel pigments.
Production method 1. Process flow of soda sintering method
Wolframite concentrate soda sintering method The tungsten concentrate is ground through a 180-mesh sieve. Ingredients according to the following proportions: WO320%~22%. Soda is about 1.15 times of the theoretical amount, and saltpeter is 1% of the amount of tungsten ore.
4%, mix the prepared materials and send them to the sintering furnace for sintering at 800~900 ℃. Smelting for 2~3 hours, condensing, pulverizing, sending to the extractor, heating and softening water, extracting, filtering with a cylindrical filter
The filtered solution is purified by removing impurities, concentrated, crystallized and dehydrated to obtain the product.

Tungsten concentrate soda solution pressure cooking method: Grind scheelite and add water to make pulp, put it into the pressure cooker, then add soda in excess of 1.5 times the theoretical amount, and heat to 200~225 ℃ under stirring after charging.
The solution was dissolved for 4 h, the extract was filtered, and the filtrate was pumped into a purifier for impurity removal treatment, then pumped into an evaporator for concentration, and cooled and crystallized to obtain the product.

2. Decomposition method of caustic soda solution Pulverize the roasted wolframite concentrate through a 320-mesh sieve. It is conveyed to the feeding hopper by the belt and then added to the alkaline cooking pot. Add water and stir, add 3 dropwise at 80~90℃
5% NaOH solution. The mass ratio of concentrate and lye is 1:(1.5~2.0). After the dropwise addition, boil for about 4 h at 0.1~0.15 MPa. Let stand, the slurry is clarified and filtered. Filtrate into
After the purifier carries out the impurity removal treatment, it is concentrated in the evaporator. Cooling crystallization dehydration to obtain the product.
Production method Wolframite is crushed to 320 mesh by alkaline hydrolysis method of tungsten ore, and 30% caustic soda is added to the reactor for alkaline hydrolysis. After alkaline hydrolysis, it reacts with calcium Chloride to synthesize calcium tungstate.
Tungstic acid is then reacted with caustic soda to generate sodium tungstate, which is evaporated, crystallized, centrifuged and dried to obtain the finished product of sodium tungstate. That
MnWO4?FeWO4+4NaOH→2Na2WO4+Fe(OH)2?Mn(OH)2
Na2WO4+CaCl2→CaWO4+2NaC
CaWO4+2HC→CaC12+H2WO4
H2WO4+2NaOH→Na2WO4?2H20
physicochemical properties
Appearance: white orthohorhombic crvstals Density: 4.18 Melting point: 698℃ Boiling point: ℃at760mmHa Flash point: ℃ Storage temperature: Store in a cool. dry. well-ventilated ar
ea aw...Solubility: 730 g-L (20 oC)

White Crystalline Sodium Tungstate DihydrateWhite Crystalline Sodium Tungstate DihydrateWhite Crystalline Sodium Tungstate DihydrateWhite Crystalline Sodium Tungstate DihydrateWhite Crystalline Sodium Tungstate Dihydrate

Company Profile

Jiangsu Leiji Metal Materials Co., Ltd. is a manufacturer of sodium tungstate, tungsten bar, sodium molybdate, ammonium molybdate, molybdenum bar, and other tungsten and molybdenum series products. And concurrently operate waste tungsten, waste molybdenum, ferrovanadium, ferrotungsten, ferromolybdenum and other charge materials, and various kinds of tungsten and molybdenum production raw materials.



Our factory has production equipment, advanced production technology, sophisticated product testing methods and many years of production experience. In line with the tenet of "beginning with customer needs and ending with customer satisfaction", our factory has created an innovative talent team. Constantly study new technologies and adopt new processes to improve product quality. We always maintain product quality, are trusted by our customers, are exported to domestic and foreign markets, and are the designated procurement manufacturers for many users and foreign trade companies.



The factory is located in the industrial concentration area of Xingtai Town, Jiangyan District, Taizhou City. We sincerely welcome new and old customers to visit and negotiate business.


White Crystalline Sodium Tungstate Dihydrate

White Crystalline Sodium Tungstate DihydrateWhite Crystalline Sodium Tungstate Dihydrate

Shipping Details

White Crystalline Sodium Tungstate DihydrateWhite Crystalline Sodium Tungstate DihydrateWhite Crystalline Sodium Tungstate DihydrateWhite Crystalline Sodium Tungstate DihydrateWhite Crystalline Sodium Tungstate Dihydrate

Jiangsu Lucky Metal Materials Co., Ltd.

 Jiangsu Lucky Metal Materials Co., Ltd. is a manufacturer of sodium tungstate, tungsten bar, sodium molybdate, ammonium molybdate, molybdenum bar, and other tungsten and molybdenum series products. And concurrently operate waste tungsten, waste molybdenum, ferrovanadium, ferrotungsten, ferromolybdenum and other charge materials, and various kinds of tungsten and molybdenum production raw materials. Our factory has production equipment, advanced production technology, sophisticated product testing methods and many years of production experience. In line with the tenet of "beginning with customer needs and ending with customer satisfaction", our factory has created an innovative talent team. Constantly study new technologies and adopt new processes to improve product quality. We always maintain product quality, are trusted by our customers, are exported to domestic and foreign markets, and are the designated procurement manufacturers for many users and foreign trade companies.

Company Info

  • Company Name: Jiangsu Lucky Metal Materials Co., Ltd.
  • Representative: huaxiuli
  • Product/Service: Sodium Molybdate , Ammonium Molybdate , Molybdenum Metal , Molybdenum Scrap , Sodium Tungstate , Tungsten Scrap
  • Capital (Million US $): 10 million
  • Year Established: 2018
  • Total Annual Sales Volume (Million US $): US$2.5 Million - US$5 Million
  • Export Percentage: 41% - 50%
  • Total Annual Purchase Volume (Million US $): US$1 Million - US$2.5 Million
  • No. of Production Lines: 2
  • No. of R&D Staff: 5 -10 People
  • No. of QC Staff: 5 -10 People
  • OEM Services Provided: no
  • Factory Size (Sq.meters): 1,000-3,000 square meters
  • Factory Location: No.88-6, Xingtai Road, Xingtai Industrial District, Jiangyan District
  • Contact Person: Mr. Tony
  • Tel: +86-523-88738777
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