氢氧化锰(Ⅱ) | 18933-05-6

• 分子结构分类: 无机化合物 - 混合金属/非金属化合物 - 过渡金属氧阴离子化合物
• 中文名称: 氢氧化锰(Ⅱ)
• 英文名称: hypomanganous acid
• 英文别名: manganese(2+);dihydroxide
• CAS: 18933-05-6
• 化学式: H₂MnO₂
• 分子量: 88.9527
• InChiKey: IPJKJLXEVHOKSE-UHFFFAOYSA-L

物化性质

• 熔点：
  decomposes [HAW93]
• 密度：
  3.260
• 稳定性/保质期：

  结晶属于六方晶系（a＝0.334 nm，c＝0.468 nm），其单位晶格由Mn(OH)₂构成。

计算性质

• 辛醇/水分配系数(LogP)：
  -0.36
• 重原子数：
  3
• 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：
  2
• 氢给体数：
  2
• 氢受体数：
  2

ADMET

毒理性

• 副作用

神经毒素 - 帕金森病

Neurotoxin - Parkinsonism

来源:Haz-Map, Information on Hazardous Chemicals and Occupational Diseases

制备方法与用途

生产方法

制法：将300g纯氢氧化钾溶于500mL水中，配制成溶液后，在氢气流中加热1.5小时，以除去溶解的氧。接着，将15～17g四水合二氯化锰溶解在15mL沸水中，然后滴加上述制备的氢氧化钾水溶液。在向悬浮液通入氢气的情况下，尽快加热到190～200℃，当溶液量减至一半时，无定形沉淀会完全溶解并变为透明琥珀色溶液。随后缓慢冷却，可得到具有珍珠光泽的鳞片状固体物质（若固化温度稍高一些，则收率更好）。过滤后，使用约2L不含溶解氧的水洗涤，以除去碱和氯离子。最后将此产品置于装有五氧化二磷的减压干燥器中进行干燥，即可获得结晶性能良好的氢氧化锰。

反应信息

• 作为反应物：
  描述：

  氢氧化锰(Ⅱ) 以90%的产率得到
  参考文献：
  名称：

  TANABEH, ISAO;MIYAMOTO, NOBUAKI

  摘要：

  DOI：
• 作为产物：
  描述：

  Manganese nitrate 生成 氢氧化锰(Ⅱ)
  参考文献：
  名称：

  BOFFARDI, BENNETT P.;REY, SUSAN P.

  摘要：

  DOI：

文献信息

• Process for the preparation of sulpho-free triphenyl-methane dyestuffs
  申请人：Bayer Aktiengesellschaft

  公开号：US05013857A1

  公开（公告）日：1991-05-07

  Process for the preparation of sulpho-free triphenylmethane dyestuffs of the formula ##STR1## in which R.sup.1 -R.sup.3 denote hydrogen, C.sub.1 -C.sub.6 -alkyl, preferably methyl, or halogen, preferably chlorine, Y denotes hydrogen or NX.sup.5 X.sup.6, X.sup.1 -X.sup.6 denote hydrogen, C.sub.1 -C.sub.6 -alkyl, preferably methyl, ethyl, benzyl or phenyl and Z.sup.- denotes an anion by oxidation of their leuco products with manganese dioxide, characterized in that, after the oxidation is completed, manganese hydroxide or manganese carbonate and the carbinol base of the dyestuff are formed by the addition of hydroxide or carbonate, during or after which the carbinol base is taken up in a water-immiscible solvent, separated off from the manganese hydroxide or manganese carbonate and from the water phase, the solution is mixed with the acid HZ which may have been mixed with water, the solvent is either distilled off before the mixing or separated or distilled off after the mixing, and the dyestuff is isolated as a solution or in solid form after evaporation or crystallization.

  制备无硫三苯甲烷染料的过程，其化学式为##STR1##其中R1-R3表示氢、C1-C6烷基，优选甲基或卤素，优选氯，Y表示氢或NX5X6，X1-X6表示氢、C1-C6烷基，优选甲基、乙基、苄基或苯基，Z-表示通过其亚甲基化产物的氧化物离子，其特征在于，在氧化完成后，通过加入氢氧化物或碳酸盐形成染料的羟基化合物和碳酸盐，期间或之后将羟基化合物吸收在不溶于水的溶剂中，从锰羟化物或锰碳酸盐和水相中分离出来，将溶液与可能与水混合的HZ酸混合，溶剂在混合前或混合后蒸馏、分离或蒸发，然后通过蒸发或结晶将染料以溶液或固体形式分离出来。
• Method for preparation of metal organic acid chelates
  申请人：J H Brotech, Inc.

  公开号：US06670494B1

  公开（公告）日：2003-12-30

  A method is disclosed where organic acid chelates can be made by reacting an organic acid ligand with a metal compound in a non aqueous environment. The chelate is thereafter recovered by means of filtration or evaporation.

  本发明揭示了一种方法，可以在非水环境中通过将有机酸配体与金属化合物反应来制备有机酸螯合物。然后通过过滤或蒸发来回收螯合物。
• Reactions of Mn with H₂O and MnO with H₂. Matrix-Isolation FTIR and Quantum Chemical Studies
  作者：Mingfei Zhou、Luning Zhang、Limin Shao、Wenning Wang、Kangnian Fan、Qizong Qin

  DOI：10.1021/jp0043118

  日期：2001.6.1

  The reactions of Mn atoms with water and MnO with H-2 have been studied using matrix-isolation FTIR and DFT theoretical calculations. In solid argon, Mn atom reacted with H2O molecule to form the MnOH2 complex spontaneously. Photolysis destroyed the MnOH2 complex and produced the inserted HMnOH molecule. In addition, HMnOMnH, Mn(OH)(2), HMnOMnOH, and posssibly HMnOMnOMnH molecules were also produced on photolysis. Reaction of MnO with H2 gave the (H2)MnO complex without activation energy. Photolysis of the (H2)MnO produced the inserted HMnOH molecule as well. The aforementioned species were identified via isotopic substitutions as well as density functional theoretical frequency calculations. Potential energy surface for the Mn + H2O <----> MnO = H-2 reaction was also given. Our calculation results showed that all these reaction intermediates and products are high spin molecules. The MnOH2, HMnOH and (H-2)MnO molecules have ground states with S = 5/2, the HMnOMnH, and HMnOMnOH molecules have ground states with S = 10/2, and the HMnOMnOMnH molecule has ground state with S = 15/2.
• POLETAEV, I. F.;LYUDOMIRSKAYA, A. P.;LYUKMANOVA, E. M.;GORBACHEVICH, E. M+, TSV. MET.,(1989) N, S. 83-86
  作者：POLETAEV, I. F.、LYUDOMIRSKAYA, A. P.、LYUKMANOVA, E. M.、GORBACHEVICH, E. M+

  DOI：——

  日期：——
• SIMOES, J. A. R.;MANTAS, P. Q.;BAPTISTA, J. L., SILICAT. IND., 55,(1990) N-6, C. 117-120
  作者：SIMOES, J. A. R.、MANTAS, P. Q.、BAPTISTA, J. L.

  DOI：——

  日期：——