草酸钴(II) 二水合物 | 117205-01-3

• 物质功能分类: 有机原料 - 有机金属盐
• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 中文名称: 草酸钴(II) 二水合物
• 中文别名: 草酸钴,二水；草酸钴；二水合草酸钴；草酸钴(II)；草酸钴(II)二水合物
• 英文名称: cobalt(II) oxalate dihydrate
• 英文别名: [Co(μ-oxalate)(H2O)2]；[Co(μ-ox)(H2O)2]；cobalt(2+);oxalate;dihydrate
• CAS: 117205-01-3；5965-38-8；1217978-85-2
• 化学式: C₂H₄CoO₆
• 分子量: 183.043
• InChiKey: MWHSMSAKVHVSAS-UHFFFAOYSA-L

物化性质

• 熔点：
  230 °C (dec.)(lit.)
• 密度：
  3.021
• 溶解度：
  slightly soluble in acid solutions; soluble in NH2OH 4

计算性质

• 辛醇/水分配系数(LogP)：
  -5.17
• 重原子数：
  9
• 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：
  82.3
• 氢给体数：
  2
• 氢受体数：
  6

安全信息

• TSCA：
  Yes
• 危险等级：
  6.1

制备方法与用途

用途：用于指示剂和催化剂的制备及其氧化钴的制备。

生产方法： 将浓草酸水溶液加入到二氯化钴水溶液中，会析出草酸盐沉淀。过滤后，用冷水洗涤沉淀，并在室温下风干，得到四水合物。随后，在空气中加热四水合物至100℃，可得二水合物。

反应信息

• 作为反应物：
  描述：

  草酸钴(II) 二水合物 、 水 、 potassium oxalate monohydrate 在 4-amine-1,2,4-triazole 作用下， 以 甲醇 为溶剂， 以40%的产率得到[[Co(μ-oxalate)(H2O)2]*2H2O](n)
  参考文献：
  名称：

  A new hydrated phase of cobalt(II) oxalate: crystal structure, thermal behavior and magnetic properties of {[Co(μ-ox)(H2O)2]·2H2O}n

  摘要：

  A cobalt-oxalato complex of formula {[Co(mu-ox)(H2O)(2)](.)2H(2)O}(n) (1) (ox = oxalate dianion) has been prepared and characterized by X-ray diffraction analysis, thermoanalytical techniques and variable temperature susceptibility measurements. The compound crystallizes in the triclinic space group P (1) over bar with cell parameters: a = 6.627(1), b = 8.715(2), c = 11.106(2) Angstrom, alpha = 69.86(1), beta = 83.45(1), gamma = 72.33(1)degrees. Its crystal structure consists of crystallization water molecules and one-dimensional linear chains of [Co(H2O)(2)](2+) units linked by bis-bidentate oxalato ligands. These structural units are held together by an extensive network of hydrogen bonds. The magnetic properties show the occurrence of antiferromagnetic interactions between the metal centers. (C) 2003 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/s0020-1693(03)00434-1
• 作为产物：
  描述：

  硫酸钴水合物 、 oxalic acid dihydrate 以 not given 为溶剂， 生成 草酸钴(II) 二水合物
  参考文献：
  名称：

  Studies on the mechanism of thermal dehydration of cobalt oxalate dihydrate

  摘要：

  Several mechanistic and non-mechanistic equations are employed to compute kinetic parameters from TG studies of cobalt oxalate dihydrate. A phase boundary reaction mechanism is suggested for the dehydration step. Spectroscopic, magnetic and elemental micro-analysis results supplement the mechanism as proposed by TG analysis. A DSC trace also supports the mechanism.

  DOI：

  10.1016/0022-3697(92)90207-t

文献信息

• Method for the recovery and reuse of cobalt and/or manganese components
  申请人：Dynamit Nobel AG

  公开号：US04490297A1

  公开（公告）日：1984-12-25

  A process is provided for the recovery and recycling of spent cobalt and/or manganese catalysts used in the air oxidation of alkyl aromatics in acetic acid. The catalysts are isolated in the form of oxalates of extremely low solubility from the acetic acid mother liquors and the cobalt oxalate dihydrate and/or manganese oxalate dihydrate catalysts are restored by the joint action of hydrogen bromide and acetic anhydride, acetyl bromide, or a mixture thereof, to a form in which they are soluble in acetic acid and can be used, again, as oxidation catalysts.

  本发明提供了一种用于回收和再利用在醋酸中烷基芳烃氧化反应中使用的已用钴和/或锰催化剂的方法。催化剂以极低溶解度的草酸盐形式从醋酸母液中分离出来，通过氢溴酸和乙酸酐、乙酰溴或其混合物的联合作用，将草酸二水合钴盐和/或草酸二水合锰盐催化剂恢复到可在醋酸中溶解并可再次用作氧化催化剂的形式。
• A new hydrated phase of cobalt(II) oxalate: crystal structure, thermal behavior and magnetic properties of {[Co(μ-ox)(H2O)2]·2H2O}n
  作者：Urko Garcı́a-Couceiro、Oscar Castillo、Antonio Luque、Garikoitz Beobide、Pascual Román

  DOI：10.1016/s0020-1693(03)00434-1

  日期：2004.1

  A cobalt-oxalato complex of formula [Co(mu-ox)(H2O)(2)](.)2H(2)O}(n) (1) (ox = oxalate dianion) has been prepared and characterized by X-ray diffraction analysis, thermoanalytical techniques and variable temperature susceptibility measurements. The compound crystallizes in the triclinic space group P (1) over bar with cell parameters: a = 6.627(1), b = 8.715(2), c = 11.106(2) Angstrom, alpha = 69.86(1), beta = 83.45(1), gamma = 72.33(1)degrees. Its crystal structure consists of crystallization water molecules and one-dimensional linear chains of [Co(H2O)(2)](2+) units linked by bis-bidentate oxalato ligands. These structural units are held together by an extensive network of hydrogen bonds. The magnetic properties show the occurrence of antiferromagnetic interactions between the metal centers. (C) 2003 Elsevier B.V. All rights reserved.
• Studies on the mechanism of thermal dehydration of cobalt oxalate dihydrate
  作者：A. Venkataraman、N.V. Sastry、Arabinda Ray

  DOI：10.1016/0022-3697(92)90207-t

  日期：1992.5

  Several mechanistic and non-mechanistic equations are employed to compute kinetic parameters from TG studies of cobalt oxalate dihydrate. A phase boundary reaction mechanism is suggested for the dehydration step. Spectroscopic, magnetic and elemental micro-analysis results supplement the mechanism as proposed by TG analysis. A DSC trace also supports the mechanism.