Study on Adsorption of Sodium Dinonylnaphthalenesulfonate on Steel by Radiotracer Method

Yoshiharu Nose, Kiyoshi Inoue
1974 Journal of the Japan Petroleum Institute  
Adsorption of sodium dinonylnaphthalenesulfonate (NaDNNS) tagged with radioactive sulfur 35 was studied at the steel-benzene interface at room temperature. The adsorption increased with time, requiring 20hrs to reach a maximum value, and its equilibrium adsorption was about one tightly packed monolayer. Adsorbed NaDNNS molecules were not desorbed by benzene rinsing but 65% of adsorbed NaDNNS molecules were desorbed by exchanging with untagged NaDNNS molecules in benzene solution. The
more » ... adsorption of NaDNNS and Pb Naphthenate was not Langmuirian and the relative strength of adsorption was NaDNNS>Pb Naphthenate.
doi:10.1627/jpi1958.17.230 fatcat:hvavd5gehfbyzchy7ycm65jqym