Hydrogen, which can be made electrolytically from water and used to power fuel cells, is difficult to handle.

In our experiment, we synthesised alkyl polyglycol ether sulfonates (APES), electrolytically stable fatliquor, and tried to apply it in the pickle and tanning bath.

Electrotype: a duplicate relief printing plate made electrolytically by depositing copper on a wax mould taken from an original plate or type and backing it with a lead alloy.