Chemistry

Hoffman's Voltameter
" Sales Code CHEM139"

Made of Soda glass/borosilicate glass. For use in demonstrating decomposition of water, determination of chemical composition by electrolysis and applicable in evalution of electrochemical equivalent of hydrogen. Platinum electrodes are used for the electrolysis of water; carbon electrodes for the electrolysis of ammonia or hydrochloric acid. The glass unit has two connected limbs, graduated for 50cm3 capacity, integral with reservoir tube and funnel shaped bulb, with a stopcock at top of each limb, with ine pair platinum electrodes and one pair carbon electrodes. Reservoir capacity 200cm3. Without stand.
Overall Dimensions : 700 x 85 (Ht. x W).

For above voltameter equipments
Carbon Electrodes
" Sales Code CHEM140"
Mounted in rubber stopper. Overall length 85mm. In Pair.
Platinum Electrodes
" Sales Code CHEM141"
Mounted in rubber stopper. Overall length 85mm. In glass tube Pair.
Support Stand
" Sales Code CHEM142"
Triangular cast iron base hammertone finish chrome plated with three clips to hold the hofman voltmeter.
Eudiometer Tube
" Sales Code CHEM143"
Soda glass graduated tube 0 to 0.2 ml. Sealed at one end with platinum electrodes fused at the closed end.