Make sure that you understand some of the
problems associated with most chemicals
used in processing of all types.
If caution is used, you will be OK, but plan for
the worst. Understand treatments for chemical
ingestion, have eye protection available,
gloves, etc.
I read about some peoples interest in
compounding toners. Selenium is a real
bugger and can create more problems than
you want to have so read and understand any
cautions.
Regards,
RM