Abstract
Di-n-butylamine is a satisfactory inhibitor for the corrosion of aluminum-manganese alloy in hydrochloric acid solutions. Polarization studies indicate that the anode polarization is negligible, whereas the cathode polarization is appreciable and is increased by the inhibitor. The Tafel plot holds good in this case. The dissolution of the metal is electrochemical in character; the corrosion process appears to be under cathodic control. The efficiency increases with time, the effect being quite significant up to about 3 hr. It increases with increases in concentration of the inhibitor up to a certain value beyond which it is constant. The values increase with acid concentration up to 1.25 N., and remain practically unchanged thereafter. An acid concentration of 1.25 N. and an inhibitor concentration of 0.5 g per liter of nitrogen can be regarded as the optimum from the viewpoint of efficiency, the value being in the range 57-84%. The efficiency of the inhibitor for the aluminum-manganese alloy is about the same order as for pure aluminum. (10 refs.)
Citation Formats
Unni, V K.V., and Rama Char, T L.
Di-n-butylamine as an inhibitor for the corrosion of aluminium alloys in hydrochloric acid solutions.
United Kingdom: N. p.,
1965.
Web.
Unni, V K.V., & Rama Char, T L.
Di-n-butylamine as an inhibitor for the corrosion of aluminium alloys in hydrochloric acid solutions.
United Kingdom.
Unni, V K.V., and Rama Char, T L.
1965.
"Di-n-butylamine as an inhibitor for the corrosion of aluminium alloys in hydrochloric acid solutions."
United Kingdom.
@misc{etde_6683540,
title = {Di-n-butylamine as an inhibitor for the corrosion of aluminium alloys in hydrochloric acid solutions}
author = {Unni, V K.V., and Rama Char, T L}
abstractNote = {Di-n-butylamine is a satisfactory inhibitor for the corrosion of aluminum-manganese alloy in hydrochloric acid solutions. Polarization studies indicate that the anode polarization is negligible, whereas the cathode polarization is appreciable and is increased by the inhibitor. The Tafel plot holds good in this case. The dissolution of the metal is electrochemical in character; the corrosion process appears to be under cathodic control. The efficiency increases with time, the effect being quite significant up to about 3 hr. It increases with increases in concentration of the inhibitor up to a certain value beyond which it is constant. The values increase with acid concentration up to 1.25 N., and remain practically unchanged thereafter. An acid concentration of 1.25 N. and an inhibitor concentration of 0.5 g per liter of nitrogen can be regarded as the optimum from the viewpoint of efficiency, the value being in the range 57-84%. The efficiency of the inhibitor for the aluminum-manganese alloy is about the same order as for pure aluminum. (10 refs.)}
journal = []
volume = {12:1}
journal type = {AC}
place = {United Kingdom}
year = {1965}
month = {Jan}
}
title = {Di-n-butylamine as an inhibitor for the corrosion of aluminium alloys in hydrochloric acid solutions}
author = {Unni, V K.V., and Rama Char, T L}
abstractNote = {Di-n-butylamine is a satisfactory inhibitor for the corrosion of aluminum-manganese alloy in hydrochloric acid solutions. Polarization studies indicate that the anode polarization is negligible, whereas the cathode polarization is appreciable and is increased by the inhibitor. The Tafel plot holds good in this case. The dissolution of the metal is electrochemical in character; the corrosion process appears to be under cathodic control. The efficiency increases with time, the effect being quite significant up to about 3 hr. It increases with increases in concentration of the inhibitor up to a certain value beyond which it is constant. The values increase with acid concentration up to 1.25 N., and remain practically unchanged thereafter. An acid concentration of 1.25 N. and an inhibitor concentration of 0.5 g per liter of nitrogen can be regarded as the optimum from the viewpoint of efficiency, the value being in the range 57-84%. The efficiency of the inhibitor for the aluminum-manganese alloy is about the same order as for pure aluminum. (10 refs.)}
journal = []
volume = {12:1}
journal type = {AC}
place = {United Kingdom}
year = {1965}
month = {Jan}
}