非离子表面活性剂Tween80增溶萘实验模拟

利用非离子型表面活性剂增溶萘的效果,同时分析温度、离子强度和共存有机物苯、硝基苯对增溶效果的影响.结果表明,Tween80显著提高萘在水相中的溶解性,10.0g/L的Tween80溶液中,萘的表观溶解度达到489.70mg/L;温度和离子强度的增加提高了萘的表观溶解度,并呈现线性正相关,其中温度的影响作用大于离子强度;萘的增溶体系中存在苯或硝基苯,硝基苯或苯与萘为竞争增溶关系,苯的抑制程度大于硝基苯.

Laboratory investigation of solubilization of naphthalene by nonionic surfactant Tween80

This paper presents the results of a laboratory investigation performed to study the solubilization of naphthalene by nonionic surfactant of Tween80. A series of batch experiments were conducted to investigate the effect of temperature, ionic strength, and coexisting contaminants (e g. benzene and nitrobenzene) on the solubilization efficiency. The results demonstrated that naphthalene solubility in water was greatly improved in the presence of Tween80, the apparent solubility of naphthalene reached 489.70mg/L in Tween80 solution of 10.0g/L; there was a linear positive correlation between the naphthalene apparent solubility and the factor of temperature or ionic strength, and the effect of temperature on solubilization was more obvious; the coexisting contaminants negatively influenced the naphthalene apparent solubility, and the effect was greater in the presence of benzene.