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The fate of rhenium in polyaminocarboxy solution: Hourglass crystal and its speciation study.
Fu, Zhihai; He, Aidan; Min, Xiaowen; Ding, Mu; Chen, Tao; Zhai, Fuwan; An, Shuwen; Xiao, Fengfeng; Kang, Jinyang; Ding, Jie; Huang, Chao; Feng, Xiaojie; Jin, Yongdong; Xia, Chuanqin.
Affiliation
  • Fu Z; College of Chemistry, Sichuan University, Chengdu, 610064, China.
  • He A; College of Chemistry, Sichuan University, Chengdu, 610064, China.
  • Min X; College of Chemistry, Sichuan University, Chengdu, 610064, China.
  • Ding M; College of Chemistry, Sichuan University, Chengdu, 610064, China.
  • Chen T; Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, China.
  • Zhai F; College of Chemistry, Sichuan University, Chengdu, 610064, China.
  • An S; College of Chemistry, Sichuan University, Chengdu, 610064, China.
  • Xiao F; Drilling Fluid Technology Service Corporation, CNPC Chuanqing Drilling Engineering Company Limited, Chengdu, 610051, China.
  • Kang J; College of Chemistry, Sichuan University, Chengdu, 610064, China.
  • Ding J; College of Chemistry, Sichuan University, Chengdu, 610064, China.
  • Huang C; College of Chemistry, Sichuan University, Chengdu, 610064, China.
  • Feng X; Logistic Engineering University, Chongqing, 401311, China.
  • Jin Y; College of Chemistry, Sichuan University, Chengdu, 610064, China.
  • Xia C; College of Chemistry, Sichuan University, Chengdu, 610064, China. Electronic address: xiachqin@163.com.
J Hazard Mater ; 375: 78-85, 2019 08 05.
Article in En | MEDLINE | ID: mdl-31048138
This paper studied the fate of Re in the presence of polyaminocarboxy ligand (DTPA, EDTA and NTA) under reducing condition. When SnCl2 as reducing agent, the results indicated the low valent Re was formed. And batch experiments studied the effect of pH and different ligands on the formation of low valent Re complex, the acid condition was favoured for the formation of low valent Re complex, and the order of complexing toward the low valent Re was the following: DTPA > EDTA > NTA. In the condition of pH = 1, DTPA as ligand, the hourglass crystal was obtained. Using ESI-MS, solid-state UV-Vis-NIR spectra, EXAFS, DFT calculation et al, the darkened patch of the hourglass crystal was demonstrated to be Re, and its speciation was dimeric Re2(µ-O)2DTPA.
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: J Hazard Mater Journal subject: SAUDE AMBIENTAL Year: 2019 Document type: Article Affiliation country: China Country of publication: Netherlands
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: J Hazard Mater Journal subject: SAUDE AMBIENTAL Year: 2019 Document type: Article Affiliation country: China Country of publication: Netherlands