CJCU

Chem. J. Chinese Universities ›› 2010, Vol. 31 ›› Issue (10): 2042.

• Articles • Previous Articles     Next Articles

Molecular Spectral Investigations on the Hygroscopicity of Aerosols of Sodium Succinate

WANG Feng*, ZHANG Li-Na   

  1. Chemistry Department, School of Physics and Chemistry, Henan Polytechnic University, Jiaozuo 454000, China
  • Received:2010-04-16 Online:2010-10-10 Published:2010-10-10
  • Contact: WANG Feng. E-mail: smallpeak@hpu.edu.cn
  • Supported by:

    国家自然科学基金(批准号: 20903036)资助.

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Abstract: The efflorescence and deliquescence processes of sodium succinate aerosol droplets were investigated with combination of confocal Raman spectral and FTIR-ATR techniques. It was concluded that the full width at half maximum(FWHM) of νs(COO-) band of sodium succinate droplet at 1420 cm-1 increased from 35 cm-1 to 42 cm-1 with decreasing the molar ratio of water to solute(WSR), indicating the weak interaction between Na+ and succinate dianions; the sodium succinate droplet crystallized to form metastable anhydrous particles rather than thermodynamically stable hexahydrated ones.

Key words: Sodium succinate, Hygroscopicity, Confocal Raman, FTIR-ATR

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