Rubber stoppers, also known as rubber bungs or rubber corks, are commonly used in laboratories such as Container Sealing, Reaction Vessel, Gas Collection and Delivery, Environmental Chambers, Specimen Storage, Flask Setups.
Rubber stopper will depend upon the container size, desired sealing properties, chemical compatibility, and the nature of the experiment or process being conducted.
An Apparatus used in an electrochemical cell for connecting its oxidation and reduction half cells, a weak electrolyte is used.
A salt bridge is a junction that connects the anode and cathode compartments in a cell or electrolytic solution.
Salt bridges are commonly used in laboratory tests, particularly in electrochemical cells, to maintain electrical neutrality and enable the flow of ions between the compartments of the cell.
Savart wheels/ rotating disks are devices used in laboratories for studying acoustics and the perception of sound.
Savart's wheel is used to determine the frequency of an unknown pitch.
If the wheels are rotated along their central axis, and a card held against the teeth, a musical note is emitted but unlike the tuning forks the largest wheel gives the highest note.