223336
钨酸钠 二水合物
ACS reagent, ≥99%
别名:
钨酸 钠盐 二水合物
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关于此项目
线性分子式:
Na2WO4 · 2H2O
化学文摘社编号:
分子量:
329.85
NACRES:
NA.21
PubChem Substance ID:
UNSPSC Code:
12352302
EC Number:
236-743-4
MDL number:
Assay:
≥99%
Grade:
ACS reagent
Form:
crystalline powder
产品名称
钨酸钠 二水合物, ACS reagent, ≥99%
InChI key
WPZFLQRLSGVIAA-UHFFFAOYSA-N
InChI
1S/2Na.2H2O.4O.W/h;;2*1H2;;;;;/q2*+1;;;;;2*-1;
SMILES string
O.O.[Na+].[Na+].[O-][W]([O-])(=O)=O
grade
ACS reagent
assay
≥99%
form
crystalline powder
reaction suitability
reagent type: catalyst
core: tungsten
impurities
≤0.01% insolubles
≤0.02 meq/g Titr. free base
pH
9-11.5 (20 °C, 100 g/L)
mp
698 °C (lit.)
anion traces
chloride (Cl-): ≤0.005%
sulfate (SO42-): ≤0.01%
cation traces
Mo: ≤0.001%
heavy metals and iron (as Pb): ≤0.001%
Quality Level
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Application
与过氧化氢结合，用于仲胺氧化成硝酮。
二水合钨酸钠可用于制备二水合氧化钨溶胶。
钨酸钠二水合物 (Na2WO4.2H2O) 可用于以下研究：
- 作为荧光法测定过氧化氢的衍生试剂。
- 合成N-羟基 - 去铁胺 B——一种微生物产品去铁胺 B 的代谢产物。
- 高晶型 CaMoO4、SrMoO4、CaWO4 和 SrWO4 纳米颗粒的制备。
General description
二水合钨酸钠是钨酸的水合钠盐。作为催化剂参与各种环氧化物的制备。已分析二水合钨酸钠的各种晶体学属性。
signalword
Warning
hcodes
Hazard Classifications
Acute Tox. 4 Oral
存储类别
13 - Non Combustible Solids
wgk
WGK 2
flash_point_f
Not applicable
flash_point_c
Not applicable
Journal of the Chemical Society. Chemical Communications, 874-874 (1984)
Lattice constants and space group of sodium tungstate dihydrate.
Pistorius CWFT and Sharp WE.
Acta Crystallographica, 14(3), 316-317 (1961)
Preparation of aqueous sols of tungsten oxide dihydrate from sodium tungstate by an ion-exchange method.
Choi YG, et al.
Sensors and Actuators B, Chemical, 87(1), 63-72 (2002)
Maki Onoda et al.
Analytical sciences : the international journal of the Japan Society for Analytical Chemistry, 22(6), 815-817 (2006-06-15)
A simple batch method for the fluorometric determination of hydrogen peroxide using phosphine-based fluorescent reagents has been developed. A rapid, mild and selective derivatization reaction was achieved by adding sodium tungstate dihydrate to the reaction mixture of hydrogen peroxide and
Reactions of hydrogen peroxide. IV. Sodium tungstate catalyzed epoxidation of α, β-unsaturated acids.
Payne GB and Williams PH.
The Journal of Organic Chemistry, 24(1), 54-55 (1959)
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