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  • 标题:Infrared spectroscopic studies of the different solid products upon the chemical reactions between some transition metal ions/ ammonia/ urea with 1: 2: 10 ratios
  • 本地全文:下载
  • 作者:Samy M. El-Megharbel ; Ahmed El-Maghraby ; Moamen S. Refat
  • 期刊名称:International Journal of Innovative Research in Science, Engineering and Technology
  • 印刷版ISSN:2347-6710
  • 电子版ISSN:2319-8753
  • 出版年度:2013
  • 卷号:2
  • 期号:12
  • 页码:7331
  • 出版社:S&S Publications
  • 摘要:There are different solid products (MnO, Co(NCO)2, ZnCO3 and CdO) were presented through the chemicalreactions of MnCl2, Co(NO3)2, Zn(NO3)2 or CdCl2), ammonia and urea with molar ratio 1: 2: 10, respectively, at ~ 100oC for 3 hrs in aqueous media. The infrared spectra of the results indicate absence of the essential bands of urea, butexisted of the characteristic bands of oxide and both of ionic carbonate, CO32– and isocyanate, NCO–. The reactionmechanisms of decomposition of urea in the presence of alkaline media using Mn(II), Co(II), Zn(II) or Cd(II) salts weredescribed.
  • 关键词:carbonate CO3;2–; isocyanate NCO–; infrared spectra; transition metals; ammonia and urea
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