What to use in place of naphthalene

[smeee]

Year 11 Chemistry is doing a prac testing conductors using naphthalene, sulfur, paraffin wax and a mixture of lithium chloride/potassium chloride.
What can I substitute for naphthalene ? I vaguely remember something about salicylic acid or am I way off track ??
The teacher is doing this prac as a Demo.
Any advice appreciated

[RosalieM]

We just use mothballs I think... Is there any reason we can't? Is Naphthalene banned?

[SGG]

Hi Margaret and Rosalie
I have every imaginable form of Naphthalene (they were here when I arrived) and we use them occassionally - so I don't think its banned although its a flammable solid. Mothballs (as Rosalie said) that you buy from the supermarket should be the same. Is it because you don't have it, or is there another reason, why you want a substitute Margaret?
Regards
Sue G

[noona]

I think the problem is in the heating as i think it gets nasty when heated the moth balls are the same thing
Noona