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Borosilicate Glass Test Tube – 20 X 150MM$1.31
Borosilicate Glass Test Tube. NB use Rubber Stopper Size 2 (LA520-0002) for This Test Tube.
Small Hoffman Apparatus – Glass Parts$66.13
Our Small Hoffmann apparatus is a great way to demonstrate electrolysis as part of your chemistry class (Stoichiometry). Separate water into component oxygen and hydrogen gases.
For qualitative and quantitative study of the electrolytic decomposition of electrolytes such as water, hydrochloric acid etc.