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    STUDIA CHEMIA - Issue no. 4, Tom I / 2017  
         
  Article:   THE EFFECT OF POSITIONAL ISOMERISM OF PROPANEDIOL ON THE FORMATION OF COBALT OXIDES.

Authors:  THOMAS DIPPONG, FIRUTA GOGA, ALEXANDRA AVRAM. 		 
       
         
  Abstract:  This paper focuses on a comparative analysis between the carboxylate precursors obtained through the redox reaction between cobalt nitrate and 1,2-propanediol, and cobalt nitrate with 1,3-propanediol, respectively. The formation of the lactate and malonate precursors was followed with thermal analysis, FTIR spectrometry and acido-basic analysis (conductometric/ potentiometric titrimetry). The decomposition of the carboxylate precursors and the formation rate of cobalt oxides were observed by X-ray diffractometry and FTIR spectrometry, following advanced thermal treatments at 500°C, 800°C and 1000°C, with a pretreatment at 300°C. The differences between the two positional diol isomers are comparatively discussed.

Keywords: lactate, malonate, Co3O4, electrometric titrimetry, thermal treatment 		 
         
     
         
         
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