Soda asbestos is primarily used in laboratories for the absorption of carbon dioxide in gas analysis. It is commonly employed in organic elemental analysis to ensure accurate measurements by removing CO2 from gas streams. Additionally, it is utilized in closed environments, such as submarines and spacecraft, to maintain breathable air by scrubbing CO2 from the atmosphere. Its high efficiency in absorbing acidic gases makes it valuable in various chemical processes where the removal of CO2 is critical.