Table.
Carbon dioxide absorbent composition and peak carbon monoxide generation.
| Chemical composition (%) | Peak CO (ppm) when fully desiccated | |||||||
|---|---|---|---|---|---|---|---|---|
| Absorbent | Ca(OH)2 | KOH | NaOH | LiOH | Ba(OH)2 | H2O | Refs | |
| Baralyme® | 74 | 4.6 | 0 | 11 | 14 | ~20,000 | 13,20 | |
| Classic Soda lime | 2.6 | 1.3 | 15 | ~2,500 | 13,20 | |||
| Medisorb® | 81 | 0.003 | 1.0 | 18 | ~13,000 | 31 | ||
| Spherasorb® | 84.5 | 0.003 | 1.5 | 14 | ~9,000 | 31 | ||
| LoFloSorb® | 84 | 16 | 525 | 31 | ||||
| Superia® | 79.5 | 17.5 | ~30 | 31 | ||||
| Amsorb® | 83.2 | 14.4 | 0 | 31 | ||||
| Lithium Hydroxide | 99 | 1 | 0 | 31 | ||||
Ba(OH)2, barium hydroxide; Ca(OH)2, calcium hydroxide; CO, carbon monoxide; H20, water; KOH, potassium hydroxide; LiOH, lithium hydroxide; NaOH, sodium hydroxide; ppm, parts per million; refs, references. Peak CO generation determined with various volatile anesthetics as detailed in indicated reference(s). Amsorb® is a product of Armstrong Ltd., Coleraine, Northern Ireland; Baralyme® was a product of Chemetron Medical Division, Allied Healthcare Products, St. Louis, MO; Medisorb® is a product of Datex Ohmeda, Helsinki, Finland; Spherasorb® and LoFloSorb® are products of Intersurgical, Wokingham, Berkshire, United Kingdom; Superia® is a product of Datex Ohmeda, Hoevelaken, The Netherlands.