The seasonal application of de-icing salts on our roads in the northern hemisphere during winter to prevent icing of roads and for snow removal possesses threat to not only shrubs by the road sides but also to certain engineering metals used in our automobiles. In this work, the corrosive effect of these salts on standard commercial magnesium alloys was examined. Immersion tests were carried out with NaCl, CaCl₂ and MgCl₂ solutions. A mixture of NaCl, MgCl₂ and between 10wt.% to 50wt.% of CaCl₂ were also used for the immersion test, and their influence on the corrosion behaviour of the chosen magnesium alloys was studied. Corroded samples were observed using optical microscope, scanning electron microscope (SEM) with energy dispersive X-ray analysis (EDX).