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Citation: Chen Ming-Ming, Ma Pei-Sheng, Wang Lin, Chen Feng. A Novel Experimental Method for Minor Solid Solubility Determination Facing with Environment Issue[J]. Acta Physico-Chimica Sinica, ;2004, 20(04): 445-448. doi: 10.3866/PKU.WHXB20040425 shu

A Novel Experimental Method for Minor Solid Solubility Determination Facing with Environment Issue

1.
Key Laboratory for Green Chemical Technology of State Education Ministry,School of Chemical Engineering ＆ Technology,Tianjin University,Tianjin　300072

Received Date: 12 November 2003
Available Online: 15 April 2004

A new experimental method for solubility determination was developed based upon optical and chemical principles. It makes the determination of solubility data more objective and accurate. With the aid of laser, the novel method will be much helpful in getting solid-liquid equilibrium data especially for slight solubility, which is always appearing, in environment issue. It can be widely used not only for traditional chemical engineering research but also for the field of environment-chemical engineering research, which is a boom cross-discipline, especially applicable for water solubility determination. Using this method, solubility data for the binary systems of terephthalic acid＋water and terephthalic acid＋acetic acid have been measured in a temperature range of 300 to 445 K and all the experimental data have been correlated by Wilson equation and Wilson-T equation. It indicats that Wilson-T model will be better than Wilson model.
- Slight solubility;Laser;Determination method
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