Electrolysis of molten zinc chloride

Molten zinc chloride inside a crucible, with two graphite electrodes

Source: Royal Society of Chemistry

Try this demonstration to show how an ionic salt will conduct electricity when molten but not when solid. Includes kit list, video and safety instructions.

In this practical, students observe the electrolysis of molten zinc chloride in a fume cupboard, after noting that the salt does not conduct electricity when solid. The procedure includes a full kit list, safety instructions and teaching notes, as well as a video demonstration.

Thanks for using the RSC’s education resources. You can view one resource per month as a visitor, or two resources per month when you’re logged in with a personal account.

A photograph of a teacher standing in a white lab coat, speaking with a class of children in a laboratory, is superimposed on a colourful background. Text reads "Teach Chemistry means support for classroom and staff room".

Register for Teach Chemistry for free, unlimited access

Registration is open to all teachers and technicians at secondary schools, colleges and teacher training institutions in the UK and Ireland.

Get all this, plus much more: 

unlimited access to resources, core practical videos and Education in Chemistry articles
teacher well-being toolkit, personal development resources and online assessments
applications for funding to support your lessons

Set up your Teach Chemistry account

Already a Teach Chemistry member? Sign in now.

Not a science teacher or technician based in the UK or Ireland? Don’t worry – you can also access all our resources with Royal Society of Chemistry membership.