Winkler bottle
The Winkler bottle , also known as Winkler's oxygen bottle , is a glass device named after Lajos Winkler and used in chemical-analytical laboratories .
A Winkler bottle is characterized by the fact that it has a solid, beveled, standard ground glass stopper, which can be secured with a spring clip. Each bottle is adjusted with the corresponding stopper. The stopper and bottle are therefore not interchangeable and are always numbered the same to avoid mix-ups. The measured volume is specified to an accuracy of ± 0.01 ml. The nominal volumes are 100–150 ml with joint NS 14/23 and 250–300 ml with joint NS 19/26.
The beveled stopper allows liquids to be filled without protruding gas bubbles, the constituents of which interact with the liquid composition during transport or storage and can influence the results.
use
Winkler bottles are used to store samples for the determination of the oxygen dissolved in the water .
literature
- LW Winkler: Oxygen bottle. In: Journal for Applied Chemistry . 25, 1912, p. 1563, doi : 10.1002 / anie.19120253105 .
