Sodium tungstate dihydrate CAS:10213-10-2

  • Product Name:Sodium tungstate dihydrate
  • CAS:10213-10-2
  • Molecular formula:H4Na2O6W
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Sodium tungstate dihydrate CAS:10213-10-2

Sodium tungstate dihydrate CAS:10213-10-2 Basic information

Product Name: Sodium tungstate dihydrate
Synonyms: SODIUM TUNGSTATE, DIHYDRATE, REAGENT (ACS)SODIUM TUNGSTATE, DIHYDRATE, REAGENT (ACS)SODIUM TUNGSTATE, DIHYDRATE, REAGENT (ACS);SODIUM TUNGSTATE, DIHYDRATE, TECHNICALSODIUM TUNGSTATE, DIHYDRATE, TECHNICALSODIUM TUNGSTATE, DIHYDRATE, TECHNICAL;sodium tungst
CAS: 10213-10-2
MF: H4Na2O6W
MW: 329.85
EINECS: 600-275-2
Product Categories: metal tungstate
Mol File: 10213-10-2.mol

Sodium tungstate dihydrate CAS:10213-10-2 Chemical Properties

density: 4.18
Melting point: 698 °C(lit.)
form: Solid
storage temp.: Storage temperature: no restrictions.
Water Solubility: 730 g/L (20 ºC)
InChIKey: WPZFLQRLSGVIAA-UHFFFAOYSA-N
solubility: H2O: 1 M at 20 °C, clear, colorless
Merck: 14,8698
Specific Gravity: 3.25
Odor: Odorless
λmax: λ: 260 nm Amax: ≤0.120λ: 280 nm Amax: ≤0.035
CAS DataBase Reference: 10213-10-2(CAS DataBase Reference)
EPA Substance Registry System: Tungstate (WO42-), disodium, dihydrate, (T-4)- (10213-10-2)
Sodium tungstate dihydrate Basic information
Product Name:Sodium tungstate dihydrate
Synonyms:SODIUM TUNGSTATE 2H2O;SODIUM TUNGSTATE-2-HYDRATE;SODIUM TUNGSTATE DIHYDRATE;SODIUM TUNGSTATE HYDRATED;SODIUM TUNGSTATE(VI) DIHYDRATE;TUNGSTIC ACID NA-SALT 2H2O;TUNGSTIC ACID SODIUM SALT DIHYDRATE;Tungsticaciddisodiumsaltdihydrate
CAS:10213-10-2
MF:H4Na2O6W
MW:329.85
EINECS:600-275-2
Product Categories:metal tungstate
Mol File:10213-10-2.mol
Sodium tungstate dihydrate Structure

Sodium tungstate dihydrate Chemical Properties
Melting point 698 °C(lit.)
density 4.18
storage temp. Storage temperature: no restrictions.
solubility H2O: 1 M at 20 °C, clear, colorless
form Solid
color White to slightly yellow
Specific Gravity3.25
OdorOdorless
PH9.5-11.5 (25℃, 1M in H2O)
PH Range9 - 11.5 at 100 g/l at 20 °C
Water Solubility 730 g/L (20 ºC)
λmaxλ: 260 nm Amax: ≤0.120
λ: 280 nm Amax: ≤0.035
Merck 14,8698
InChIKeyWPZFLQRLSGVIAA-UHFFFAOYSA-N
CAS DataBase Reference10213-10-2(CAS DataBase Reference)
EPA Substance Registry SystemTungstate (WO42-), disodium, dihydrate, (T-4)- (10213-10-2)

 

Product

 

钨酸钠 Na2WO4?H2O

 

Batch No.

 

 

20201222

批 重 量

 

Batch Weight

 

 

1000kg

检验项目

 

Analysis Content

检验标准

 

Analysis Standart

检验结果

 

Analysis Results

 

Na2WO42H2O

98%

98.18%

 

Mo

0.02%

0.018%

As

0.002%

0.001%

Fe

0.002%

0.001%

Pb

0.002%

0.002%

pH

8-9

8.3

水不溶物

 

Water Insoluble Matter

 

0.02%

0.02%

Sodium tungstate dihydrate Usage And Synthesis
Chemical Propertieswhite to slightly yellow crystalline powder or
UsesFireproofing and waterproofing fabrics; preparing complex Compounds such as phosphotungstate and silicotungstate; as a protective colloid in biological development methods; precipitant for alkaloids; catalyst in oxidation reactions; corrosion inhibitor for steel.
DefinitionChEBI: A hydrate that is the dihydrate form of sodium tungstate. Combines with hydrogen peroxide for the oxidation of secondary amines to nitrones
Purification MethodsThe salt crystallises from hot water (0.8mL/g) on cooling to 0o. [Grüttner & Jender in Handbook of Preparative Inorganic Chemistry (Ed. Brauer) Academic Press Vol II p 1727 1965].


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