<![CDATA[Carbon dioxide (CO₂) emissions from industrial and transportation sectors are major contributors to the greenhouse effect, driving global climate change. One of the promising mitigation methods is chemical absorption using alkaline solutions, which also enables the production of value-added products. This study aims to evaluate the effects of NaOH concentration and stirring speed on the performance of CO₂ absorption based on the resulting products. With high stirring speed and concentration, it is expected that more Na2CO3 will be formed than in previous studies. The resulting Na2CO3 product was then characterized using SEM and FTIR. Experiments were conducted at NaOH concentrations of 8–10 M, a temperature of 50°C, a CO₂ flow rate of 2 lpm, and stirring speeds ranging from 300 to 500 rpm. Process efficiency was determined based on the mass of Na₂CO₃ formed and the residual NaOH concentration. The results showed that the highest product mass, 218.90 g, was obtained at 10 M and 300 rpm. SEM and FTIR analyses confirmed that the produced material is consistent with the characteristics of Na₂CO₃. These findings provide complementary insights to previous studies for identifying effective, efficient, and economically viable operating conditions.]]>
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