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Thanks. Garcia Oliver. Plants absorb CO 2, of course, but they take up a lot of room and are slow, inefficient CO 2 absorbers. 2 scrubbers use chemicals that don't meet your criteria. Monoethanolamine (MEA) is used to scrub carbon dioxide from gas streams, but it's corrosive and toxic in very small amounts.hanks. Garcia Oliver. Plants absorb CO 2, of course, but they take up a lot of room and are slow, inefficient CO 2 absorbers. 2 scrubbers use chemicals that don't meet your criteria. Monoethanolamine (MEA) is used to scrub carbon dioxide from gas streams, but it's corrosive and toxic in very small amounts.
Metal carbonates such as calcium carbonate (chalk) react with acids to produce the gas carbon dioxide. This can be seen in the equation: Metal carbonate + Acid Salt + Water + Carbon dioxide. The carbon dioxide produced can be tested for in the lab using limewater, which reacts with the carbon dioxide gas. When the limewater reacts with carbon dioxide gas it turns from colourless to milky white in colour.