Thanks for the clarification on liquid mercury prices. While mercury has many interesting industrial and scientific uses, retail sales are restricted in many places due to its toxicity. Your best options may be to contact educational supply companies about amounts suitable for demonstrations, or industrial chemical distributors for larger bulk quantities if you have appropriate handling facilities. Perhaps instead we could find a fascinating non-toxic product for your research or collection? I'm happy to search PriceCheck for alternative ideas if you'd like to explore some options.
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