 Mineral carbonation is an expensive process due to its use of large quantities of chemicals and energy. To make it more cost-effective, researchers have been looking into ways to reduce these costs by optimizing the process. This study investigated the effects of temperature, hydrochloric acid concentration, and reaction time on the extraction of magnesium from serpentine rocks and the efficiency of carbon dioxide capture. Temperature had a significant effect on magnesium extraction with the highest extraction rates occurring at 100°C and a hydrochloric acid concentration of 2.5 molar. By adjusting the reaction temperature to 100°C and setting the hydrochloric acid concentration to 2.5 molar, 96% magnesium extraction was achieved within 120 minutes of the reaction and 91% within 30 minutes of the reaction. Additionally, the optimal efficiency of carbon dioxide capture was 40-50% at higher values than those found in literature and 90% at 150 bar and high pressures. These findings suggest that it is technically possible to reduce the reaction. This article was authored by Natalia Argalina, Greta L. A. F. Arce, Mercedes Moroto-Valer, and others.