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About This Item
线性分子式:
Na2WO4 · 2H2O
CAS号:
分子量:
329.85
EC號碼:
MDL號碼:
分類程式碼代碼:
12352302
PubChem物質ID:
NACRES:
NA.21
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等級
ACS reagent
化驗
≥99%
形狀
crystalline powder
反應適用性
reagent type: catalyst
core: tungsten
雜質
≤0.01% insolubles
≤0.02 meq/g Titr. free base
pH值
9-11.5 (20 °C, 100 g/L)
mp
698 °C (lit.)
負離子痕跡
chloride (Cl-): ≤0.005%
sulfate (SO42-): ≤0.01%
正離子痕跡
Mo: ≤0.001%
heavy metals and iron (as Pb): ≤0.001%
SMILES 字串
O.O.[Na+].[Na+].[O-][W]([O-])(=O)=O
InChI
1S/2Na.2H2O.4O.W/h;;2*1H2;;;;;/q2*+1;;;;;2*-1;
InChI 密鑰
WPZFLQRLSGVIAA-UHFFFAOYSA-N
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一般說明
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。
應用
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。
訊號詞
Warning
危險聲明
危險分類
Acute Tox. 4 Oral
儲存類別代碼
13 - Non Combustible Solids
水污染物質分類（WGK）
WGK 2
閃點（°F）
Not applicable
閃點（°C）
Not applicable
其他客户在看
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
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)
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)
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
Lattice constants and space group of sodium tungstate dihydrate.
Pistorius CWFT and Sharp WE.
Acta Crystallographica, 14(3), 316-317 (1961)
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