Cap bottle
Cap bottles are used in chemical laboratories to hold liquid chemicals that emit corrosive fumes. They allow the bottle to be closed twice and are used, for. B. used for the storage of concentrated hydrochloric acid and ammonia water. Cap bottles are mostly made of glass . For acids, both closures are usually made of glass. For bottles with alkaline substances, a plastic or rubber stopper is usually used instead of the “inner” glass stopper.
Individual evidence
- ↑ Gerhard Meyendorf: Laboratory Equipment and Chemicals , People and Knowledge Volkseigener Verlag Berlin, 1965, p. 219.
- ^ Walter Wittenberger: Chemische Laboratoriumstechnik , Springer-Verlag, Vienna, New York, 7th edition, 1973, p. 52, ISBN 3-211-81116-8 .