ammonium salt of 12-tungstophosphoric acid | 12026-93-6

• 英文名称: ammonium salt of 12-tungstophosphoric acid
• 英文别名: ammonium dodecatungstophosphate；ammonium phosphotungstate；(NH4)3(dodecatungstophosphate)
• CAS: 12026-93-6
• 化学式: 3H₄N*O₄₀PW₁₂
• 分子量: 2931.27
• InChiKey: QJEKUQPBNZSSQF-UHFFFAOYSA-O

计算性质

• 辛醇/水分配系数(LogP)：
  None
• 重原子数：
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• 可旋转键数：
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• 环数：
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• sp3杂化的碳原子比例：
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• 拓扑面积：
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• 氢给体数：
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• 氢受体数：
  None

反应信息

• 作为产物：
  描述：

  phosphotungstic acid 在 ammonium carbonate 作用下， 以 水 为溶剂， 生成 ammonium salt of 12-tungstophosphoric acid
  参考文献：
  名称：

  杂多金属氧酸盐和ZSM-5沸石中醇的吸附和扩散

  摘要：

  DOI：

  10.1021/j100336a014
• 作为试剂：
  描述：

  4-碘异苯并呋喃-1,3-二酮 、 2-甲基-1-(甲硫基)-2-丙胺 在 ammonium salt of 12-tungstophosphoric acid 、 三乙胺 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 反应 2.0h， 以89.9%的产率得到3-iodo-N-(1,1-dimethyl-2-methylthioethyl)anthranilic acid
  参考文献：
  名称：

  氟虫双酰胺中间体的制备方法

  摘要：

  本发明涉及一种氟虫双酰胺中间体的制备方法，其特征为在非质子极性溶剂中加入3‑碘代邻苯二甲酸酸酐、三乙胺和磷钨酸盐，在0～50℃温度下滴加1.1‑二甲基‑2‑甲硫基乙胺，在0～50℃温度下保温反应，反应结束得反应液，将反应液过滤后减压浓缩得固体，即为成品3‑碘‑N‑（1.1‑二甲基‑2‑甲硫基乙基）邻氨甲酰苯甲酸。本发明具有能减少异构体产生，从而减少后期精制的成本，提高目标产品的含量的优点。

  公开号：

  CN107674009A

文献信息

• Monodispersed Microporous Polyoxotungstate with Regular Shape
  作者：Takeru Ito、Kei Inumaru、Makoto Misono

  DOI：10.1246/cl.2000.830

  日期：2000.7

  Monodispersed fine particles of (NH4)3PW12O40 having regular shape were successfully prepared as precipitates by the titration of NH4HCO3 solution to H3PW12O40 solution. The particles were ca. 1 µm in size and microporous with 151 m2 g−1 of BET surface area. AFM image demonstrated that these particles were aggregates of nanocrystallites of ca. 15 nm in size.

  通过将NH4HCO3溶液滴定到H3PW12O40溶液中，成功地制备了形状规则的（NH4）3PW12O40单分散细颗粒沉淀物。这些颗粒的尺寸约为1微米，具有微孔结构，BET比表面积为151 m2 g-1。AFM图像显示，这些颗粒是由尺寸约为15纳米的纳米晶粒聚集而成的。
• A calorimetric study of the acidity of bulk and silica-supported heteropoly acid H3PW12O40
  作者：Elena F. Kozhevnikova、Ivan V. Kozhevnikov

  DOI：10.1016/j.jcat.2004.03.001

  日期：2004.5.15

  (PW) is characterised by differential scanning calorimetry of ammonia adsorption in a gas–solid system and by microcalorimetry of pyridine adsorption in a liquid–solid system (cyclohexane slurry). In both systems, the strength of PW in terms of the heat of adsorption of NH3 or pyridine increases with increasing PW loading on silica, the bulk PW being the strongest acid. The temperature and the heat of

  本体和SiO 2负载（10–60 wt％）H 3 PW 12 O 40（PW）的酸强度的特征在于气固系统中氨吸附的差示扫描量热法和液体中吡啶吸附的微量热法–固体系统（环己烷浆液）。在两种体系中，就NH 3或吡啶的吸附热而言，PW的强度均随二氧化硅上PW负载的增加而增加，大部分PW是最强的酸。NH 3脱附的温度和热量显示表明酸强度，与NH 3的热量完全一致吸附。由于存在大量水，因此无法测量溶胶-凝胶二氧化硅基质中所含PW的酸度。
• Origin of Microporosity of Ammonium Dodecatungstophosphate Unveiled by Single Crystal Structure Analysis
  作者：Takeru Ito、Masato Hashimoto、Sayaka Uchida、Noritaka Mizuno

  DOI：10.1246/cl.2001.1272

  日期：2001.12

  The single crystals of ammonium dodecatungstophosphate were successfully synthesized and the structure was analyzed. The intrinsic crystal structure (cubic, Pn3- m) had no cavity. It follows that the microporosity observed for the powdery sample originated from narrow spaces surrounded by the fine nanocrystallites.

  成功合成了十二烷基磷酸铵单晶体，并对其结构进行了分析。固有晶体结构（立方体，Pn3- m）没有空腔。因此，在粉末状样品中观察到的微孔是由细小的纳米晶体所包围的狭窄空间产生的。
• Self-Organization of <i>All-Inorganic</i> Dodecatungstophosphate Nanocrystallites
  作者：Keigo Okamoto、Sayaka Uchida、Takeru Ito、Noritaka Mizuno

  DOI：10.1021/ja070694c

  日期：2007.6.13

  The crystallinity and porosity of all-inorganic dodecatungstophosphate M3PW12O40 (M = Cs, NH4, Ag, denoted as MPW) particles are controlled by the changes in the synthetic temperatures and countercations. The MPW particles can be classified into three groups by the crystallinity and porosity: (i) mesoporous "disordered" aggregates, (ii) microporous "self-organized" aggregates, and (iii) nonporous single crystals. The formation and growth mechanism of MPW particles is expressed by three steps: formation of nanocrystallites, assembly of the nanocrystallites to form aggregates, and the growth of aggregates by the attachment of nanocrystallites. The time courses of the turbidity of the synthetic solution, the concentration of the nanocrystallites, and the average particle sizes of MPW particles are well reproduced by the calculation based on the mechanism.
• Microwave radiation solid-phase synthesis of phosphotungstate nanoparticle catalysts and photocatalytic degradation of formaldehyde
  作者：Qian Deng、Wenhui Zhou、Xiaomei Li、Zhenshan Peng、Shaoliang Jiang、Ming Yue、Tiejun Cai

  DOI：10.1016/j.molcata.2006.08.043

  日期：2007.2.1

  Photocatalysts M3PW12O40 (M=NH4+, Cs+, Ag+, Cu2+) were prepared by microwave radiation solid-phase synthesis method. The results from SEM and XRD characterization reveal that the average particle size of M3PW12O40 is 15-80nm. Diffuse reflectance UV-vis spectra of M3PW12O40 shows that the absorption band shifted from 260 to 270-350nm and become broad in comparison with those of H3PW12O40. The results of photocatalytic degradation of formaldehyde prove that the shift of UV-vis absorption band is proportionally related to the activity of the catalyst. The Cu-3(PW12O40)(2) catalyst which has the maximal red shift to 350 nm of its UV-vis absorption band is found to be the most efficient catalyst. When the concentration of formaldehyde is 32.79 mg m(-3), the conversion of the formaldehyde is basically completed under the flow rate of 40 ml min(-1) over 0.19 M3PW12O40 catalyst. The M3PW12O40 catalysts prepared by this method are stable and the regeneration of the catalysts is easy. The catalysts have promising applications in the photocatalytic degradation of organic contamination. (c) 2006 Elsevier B.V. All rights reserved.