ammonium tellurate | 13453-06-0

• 物质功能分类: 无机化工 - 无机盐 - 无机铵盐
• 分子结构分类: 无机化合物 - 混合金属/非金属化合物 - 各种混合金属/非金属
• 英文名称: ammonium tellurate
• 英文别名: Azane;telluric acid；azane;telluric acid
• CAS: 13453-06-0
• 化学式: H₂O₄Te*2H₃N
• 分子量: 227.675
• InChiKey: UIVIMOKAVBNTPW-UHFFFAOYSA-N

物化性质

• 熔点：
  °Cd ec.)
• 密度：
  3,024 g/cm3
• 暴露限值：
  ACGIH: TWA 0.1 mg/m3NIOSH: IDLH 25 mg/m3; TWA 0.1 mg/m3
• 稳定性/保质期：
  在常温常压下保持稳定，应避免光、明火和高温，同时它可溶于水。

计算性质

• 辛醇/水分配系数(LogP)：
  -1.99
• 重原子数：
  6
• 可旋转键数：
  0
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  78.4
• 氢给体数：
  2
• 氢受体数：
  4

安全信息

• TSCA：
  Yes
• 危险等级：
  6.1
• 危险品运输编号：
  UN3284
• RTECS号：
  WY2415000
• 包装等级：
  III
• 危险类别：
  6.1

制备方法与用途

类别：有毒物品

可燃性危险特性：

• 可燃
• 受热会产生有毒的氮氧化物、碲化物和氨烟雾

储运特性：

• 库房应通风、低温且干燥

灭火剂：

• 干粉、泡沫、砂土、二氧化碳以及雾状水

职业暴露标准（TWA）：

• 碲的日均接触限值为0.1毫克/立方米

反应信息

• 作为反应物：
  描述：

  hexaammonium heptamolybdate tetrahydrate 、 ammonium tellurate 生成
  参考文献：
  名称：

  α-、β-Te2MoO7的电子结构与抗生素的光催化分解

  摘要：

  通过不同的方法制备了 Te 2 MoO 7 的两种变体（晶态和非晶态）。研究了晶体和电子结构。尽管 α- 和 β-Te 2 MoO 7

  DOI：

  10.1002/ejic.202400123
• 作为产物：
  描述：

  碲酸 、 ammonium carbonate 以 not given 为溶剂， 生成 ammonium tellurate
  参考文献：
  名称：

  摘要：

  In the framework of a systematic study of compounds with hydrogen bonds, thermoanalitycal methods were employed to study four groups of hydrogen tellurates: a) Li2H4TeO6. 3H(2)O, Na2H4TeO6, K2H4TeO6; b) LiH5TeO6, NaH5TeO6. 2H(2)O, KH5TeO6. 2H(2)O; c) NH4HTeO4; d) K(4)H(4)Te(2)O(1)0 . 7.3H(2)O. The individual steps in the thermal degradation were described and the intermediates formed were characterized by analytical, infrared spectrometry, powder X-ray and, for NH4HTeO4, also mass spectrometry methods.

  DOI：

  10.1023/a:1010185817635

文献信息

• Nanocrystalline Antiferromagnetic High-κ Dielectric Sr2NiMO6 (M = Te, W) with Double Perovskite Structure Type
  作者：Jelena Bijelić、Dalibor Tatar、Sugato Hajra、Manisha Sahu、Sang Jae Kim、Zvonko Jagličić、Igor Djerdj

  DOI：10.3390/molecules25173996

  日期：——

  Double perovskites have been extensively studied in materials chemistry due to their excellent properties and novel features attributed to the coexistence of ferro/ferri/antiferro-magnetic ground state and semiconductor band gap within the same material. Double perovskites with Sr2NiMO6 (M = Te, W) structure type have been synthesized using simple, non-toxic and costless aqueous citrate sol-gel route. The reaction yielded phase-pure nanocrystalline powders of two compounds: Sr2NiWO6 (SNWO) and Sr2NiTeO6 (SNTO). According to the Rietveld refinement of powder X-ray diffraction data at room temperature, Sr2NiWO6 is tetragonal (I4/m) and Sr2NiTeO6 is monoclinic (C12/m1), with average crystallite sizes of 49 and 77 nm, respectively. Structural studies have been additionally performed by Raman spectroscopy revealing optical phonons typical for vibrations of Te6+/W6+O6 octahedra. Both SNTO and SNWO possess high values of dielectric constants (341 and 308, respectively) with low dielectric loss (0.06 for SNWO) at a frequency of 1 kHz. These values decrease exponentially with the increase of frequency to 1000 kHz, with the dielectric constant being around 260 for both compounds and dielectric loss being 0.01 for SNWO and 0.04 for SNTO. The Nyquist plot for both samples confirms the non-Debye type of relaxation behavior and the dominance of shorter-range movement of charge carriers. Magnetic studies of both compounds revealed antiferromagnetic behavior, with Néel temperature (TN) being 57 K for SNWO and 35 K for SNTO.

  双包晶石因其卓越的性能和新颖的特点，在材料化学领域得到了广泛的研究，这归因于铁/铁/反铁磁基态和半导体带隙在同一种材料中的共存。我们采用简单、无毒、无成本的柠檬酸水溶液-凝胶路线合成了 Sr2NiMO6（M = Te、W）结构类型的双包晶。反应生成了两种化合物的相纯纳米晶粉末：Sr2NiWO6（SNWO）和 Sr2NiTeO6（SNTO）。根据室温下粉末 X 射线衍射数据的里特维尔德细化，Sr2NiWO6 为四方晶（I4/m），Sr2NiTeO6 为单斜晶（C12/m1），平均结晶尺寸分别为 49 纳米和 77 纳米。此外，还通过拉曼光谱进行了结构研究，发现了 Te6+/W6+O6 八面体振动的典型光学声子。SNTO 和 SNWO 都具有较高的介电常数（分别为 341 和 308），在 1 kHz 频率下的介电损耗较低（SNWO 为 0.06）。随着频率增加到 1000 kHz，这些值呈指数下降，两种化合物的介电常数都在 260 左右，介电损耗分别为 SNWO 0.01 和 SNTO 0.04。两种样品的奈奎斯特图都证实了非戴贝型弛豫行为以及电荷载流子的短程运动占主导地位。对这两种化合物的磁性研究显示了反铁磁行为，SNWO 的奈尔温度（TN）为 57 K，SNTO 为 35 K。
• Potassium Ion Conductivity in the Cubic Labyrinth of a Piezoelectric, Antiferromagnetic Oxoferrate(III) Tellurate(VI)
  作者：Ralf Albrecht、Markus Hoelzel、Henrik Beccard、Michael Rüsing、Lukas Eng、Thomas Doert、Michael Ruck

  DOI：10.1002/chem.202102464

  日期：2021.10.13

  Orange-colored crystals of the oxoferrate tellurate K12+6xFe6Te4−xO27 [x=0.222(4)] were synthesized in a potassium hydroxide hydroflux with a molar water–base ratio n(H2O)/n(KOH) of 1.5 starting from Fe(NO3)3 ⋅ 9H2O, TeO2 and H2O2 at about 200 °C. By using (NH4)2TeO4 instead of TeO2, a fine powder consisting of microcrystalline spheres of K12+6xFe6Te4−xO27 was obtained. K12+6xFe6Te4−xO27 crystallizes

  氧化铁酸盐碲酸盐 K 12+6 x Fe 6 Te 4− x O 27 [ x =0.222(4)] 的橙色晶体在氢氧化钾 Hydroflux中合成，水碱摩尔比为n (H 2 O)/从 Fe(NO 3 ) 3  ⋅ 9H 2 O、TeO 2和 H 2 O 2在约 200 °C开始，n (KOH) 为 1.5 。通过使用 (NH 4 ) 2 TeO 4代替 TeO 2，一种由 K 的微晶球组成的细粉得到12+6 x Fe 6 Te 4- x O 27。K 12+6 x Fe 6 Te 4− x O 27在无心立方空间群I 3 d 中结晶。[Fe III O 5 ] 金字塔在 [Fe 2 O 9 ] 组中共享它们的顶原子，并且它们的两个边缘与 [Te VI O 6 ]] 八面体形成一个开放的框架，由两个松散连接但不相互渗透的手性网络组成。铰接金属氧酸盐网络的灵活性体现在类似于 LiNbO 3的压电响应中。钾阳离子在沿
• Oxohydroxo‐Tellurates(VI) K₂[TeO₂(OH)₄] and K₂[Fe₂TeO₆(OH)₂] ⋅ 2H₂O from Alkaline Hydroflux
  作者：Huanyu He、Yuxi Li、Ralf Albrecht、Michael Ruck

  DOI：10.1002/zaac.202300170

  日期：2023.11.14

  tellurium(VI) compounds, using both tellurium(VI) and tellurium(IV) as starting materials. Colorless, block-shaped crystals of the oxohydroxotellurate(VI) K2[TeO2(OH)4] were synthesized from (NH4)2TeO4 in a KOH hydroflux at 200 °C. In the triclinic crystal structure, [TeO2(OH)4]2− octahedra are connected via hydrogen bonds to form layers, which are separated from each other by potassium cations. Yellow-colored

  摘要 水流的超碱性条件为远离电化学标准电位的氧化还原化学提供了可能性。我们探索了以碲(VI)和碲(IV)为起始材料合成碲(VI)化合物的可能性。在 200 °C 的 KOH 回流中，我们从 (NH4)2TeO4 合成了无色块状的氧化羟基碲酸（VI）K2[TeO2(OH)4]晶体。在三菱晶体结构中，[TeO2(OH)4]2- 八面体通过氢键连接成层，层与层之间由钾阳离子隔开。用 H2O2 氧化 TeO2，然后在 KOH 水流中与 Fe(NO3)3⋅9H2O 反应，得到了碲酸铁(III)(VI) K2[Fe2TeO6(OH)2]⋅2H2O 的黄色小板。在单斜晶体结构中，强波纹阴离子层 Fe2TeO6(OH)2]2- 被水分子覆盖，并被钾阳离子相互隔开。八面体配位的铁（III）原子形成了一个扭曲的蜂窝状网络，在室温和至少 7 T 的外部磁场中，它们是反铁磁耦合的。
• Aqueous Sol–Gel Route toward Selected Quaternary Metal Oxides with Single and Double Perovskite-Type Structure Containing Tellurium
  作者：Igor Djerdj、Jasminka Popović、Suraj Mal、Tobias Weller、Marko Nuskol、Zvonko Jagličić、Željko Skoko、Damir Pajić、Christian Suchomski、Pascal Voepel、Roland Marschall、Bojan Kozlevčar、Bernd M. Smarsly

  DOI：10.1021/acs.cgd.5b01558

  日期：2016.5.4

  Highly crystalline SrFe2/3Te1/3O3, Ba3Fe2TeO9, and Ba2NiTeO6 have been synthesized by using a specially developed sol–gel route methodology, reducing the time needed employing solid-state routes and resulting in high reaction yield up to 75%. These materials have been studied by X-ray powder diffraction (XRPD), scanning and transmission electron microscopy, Raman spectroscopy, and dielectric and magnetic measurements. At room temperature, the crystal structure of SrFe2/3Te1/3O3 is cubic, space group Pm3̅m, with a = 3.9373(2) Å, whereas Ba3Fe2TeO9 crystallizes in the hexagonal crystal system, space group P63/mmc, a = 5.7691(4) Å, and c = 14.208(1) Å. The third studied perovskite Ba2NiTeO6 crystallizes in the trigonal R3̅m space group with a = 5.7974(4) Å and c = 28.599(2) Å. Based on structural characterization results, the obtained single and double perovskite crystallites are nearly in nanometer regime, ranging from 45 to 164 nm, building micrometer-sized particles with visible well-faceted hexagonal morphology. Magnetic measurements show the onset of ferrimagnetic ordering at relatively high temperature of 667 K for the SrFe2/3Te1/3O3, whereas Ba3Fe2TeO9 and Ba2NiTeO6 show antiferromagnetic ordering below 80 and 8.6 K, respectively. The measured room temperature dielectric constants are in the range between 15 and 77.

  利用专门开发的溶胶-凝胶路线方法合成了高结晶 SrFe2/3Te1/3O3、Ba3Fe2TeO9 和 Ba2NiTeO6，缩短了固态路线所需的时间，并使反应产率高达 75%。这些材料已通过 X 射线粉末衍射 (XRPD)、扫描和透射电子显微镜、拉曼光谱以及介电和磁性测量进行了研究。室温下，SrFe2/3Te1/3O3 的晶体结构为立方晶系，空间群为 Pm3̅m，a = 3.9373(2) Å，而 Ba3Fe2TeO9 的晶体结构为六方晶系，空间群为 P63/mmc，a = 5.所研究的第三种透辉石 Ba2NiTeO6 结晶在三方 R3̅m 空间群中，a = 5.根据结构表征结果，获得的单包晶体和双包晶体的晶粒大小接近纳米级，从 45 纳米到 164 纳米不等，形成了微米大小的颗粒，具有明显的六方形态。磁性测量结果显示，SrFe2/3Te1/3O3 在相对较高的 667 K 温度下开始出现铁磁有序，而 Ba3Fe2TeO9 和 Ba2NiTeO6 则分别在低于 80 K 和 8.6 K 的温度下出现反铁磁有序。测得的室温介电常数介于 15 和 77 之间。
• Electron Structure of α‐, β‐Te2MoO7 and Photocatalytic Decomposition of Antibiotics
  作者：Diana G Fukina、Aleksey V Boryakov、Alexandra М Koroleva、Evgeny V Zhizhin、Dmitry N Titaev、Andrey V Koryagin、Valeria A Shotina、Elena V Shilova、Evgeny V Suleimanov、Alexander V Mitin

  DOI：10.1002/ejic.202400123

  日期：——

  Te2MoO7 (crystalline and amorphous) have been prepared by different methods. The crystal and electronic structure have been investigated. The amorphous structure has narrower band gap than crystalline due to the formation of a larger number of defective levels, despite the position of the valence edge is close for α- and β-Te2MoO7. The crystalline modification possesses the deeper and more significant

  通过不同的方法制备了 Te 2 MoO 7 的两种变体（晶态和非晶态）。研究了晶体和电子结构。尽管 α- 和 β-Te 2 MoO 7