所有图片(4)
About This Item
线性分子式:
Na2WO4 · 2H2O
CAS号:
分子量:
329.85
EC 号:
MDL编号:
UNSPSC代码:
12352302
PubChem化学物质编号:
NACRES:
NA.21
方案:
≥99%
等级:
ACS reagent
表单:
crystalline powder
推荐产品
等级
ACS reagent
质量水平
方案
≥99%
表单
crystalline powder
反应适用性
reagent type: catalyst
core: tungsten
杂质
≤0.01% insolubles
≤0.02 meq/g Titr. free base
pH值（酸碱度）
9-11.5 (20 °C, 100 g/L)
mp
698 °C (lit.)
痕量阴离子
chloride (Cl-): ≤0.005%
sulfate (SO42-): ≤0.01%
痕量阳离子
Mo: ≤0.001%
heavy metals and iron (as Pb): ≤0.001%
SMILES字符串
O.O.[Na+].[Na+].[O-][W]([O-])(=O)=O
InChI
1S/2Na.2H2O.4O.W/h;;2*1H2;;;;;/q2*+1;;;;;2*-1;
InChI key
WPZFLQRLSGVIAA-UHFFFAOYSA-N
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一般描述
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。
应用
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。
警示用语：
Warning
危险声明
危险分类
Acute Tox. 4 Oral
储存分类代码
13 - Non Combustible Solids
WGK
WGK 2
闪点(°F)
Not applicable
闪点(°C)
Not applicable
Journal of the Chemical Society. Chemical Communications, 874-874 (1984)
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)
Luminescence and absorbance of highly crystalline CaMoO4, SrMoO4, CaWO4 and SrWO4 nanoparticles synthesized by co-precipitation method at room temperature.
Thongtem T, et al.
J. Alloy Compounds, 506(1), 475-481 (2010)
B E Roggo et al.
The Journal of antibiotics, 46(2), 294-299 (1993-02-01)
N-Hydroxy-desferrioxamine B (5), a postulated metabolite of the microbial product desferrioxamine B (1), has been prepared by reduction of the intermediate oxime 6 with sodium cyanoborohydride. The oxime was obtained by selective oxidation of desferrioxamine B with hydrogen peroxide and
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