Adsorption and Inhibition of Benzalkonium Chloride on Aluminum in HCl Solution

The inhibition of benzalkonium chloride on aluminum in HCl solution was investigated by weight-loss method. The experimental data were treated with adsorption theory and Sekine method. The results showed that the benzalkonium chloride is a kind of adsorbent inhibitors, and its adsorption obeys basically Langmuir's isotherm. It was also shown that the inhibition efficiency increased with temperature raising and concentration increasing.