- One ingredient found in almost all tablet or capsule containers is a desiccant - cotton batten or a small canister containing a harmless, water-absorbing compound.
- Unlike cooling-based dehumidifiers, which cool the air to condense moisture, desiccants attract moisture molecules directly from the air and release them into an exhaust air stream.
- Anhydrous sodium hydroxide is another common laboratory desiccant, or substance that removes water.
- However, desiccants contain chemical agents that may be toxic to children, pets, and the chemically sensitive.
- Silica gel isn't a true gel, but a granulated chemical desiccant composed partly of silicon.