Baralyme

Baralyme is a mixture of 80% calcium hydroxide and 20% barium hydroxide compounds[1][2][3] that is used to absorb the exhaled carbon dioxide in an anesthetic closed circuit system.[4]

The substance has been used for carbon dioxide scrubbing in diving bells and the U.S Navy's engineered SEALAB's I, II, and the failed SEALAB III.

References

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