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：7326
出版社：S&S Publications
摘要：Synthesized of alkaline earth metal carbonate slats of Ca(II), Sr(II) and Ba(II) in alkaline medium werespectroscopically discussed. The chemical reaction of an aqueous solutions of metal chloride ions (CaCl2, SrCl2 andBaCl2), ammonium hydroxide and urea with molar ratio 1:2:10, respectively, at ~ 100 oC for 3 hrs. The infrared spectraof the results indicate absence of the essential bands of urea, but existed of the characteristic bands of ionic carbonate,CO32–. The chemical reaction equations were suggested under the role of metals ions in the decomposition of urea atlow temperature in comparable with urea itself.
关键词：carbonate CO3;2–; infrared spectra; alkaline earth metals; ammonia and urea
