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Periodixy

Contact Us

Found a data error? Have an idea for a tool? Teaching with Periodixy and want something improved? We read everything — corrections especially are genuinely appreciated and feed straight back into the site's data files.

No account or personal details required. Submitting opens your email app with this message addressed to contact@periodixy.com — nothing is sent until you press send there.

Direct email

Prefer plain email? Write to contact@periodixy.com. For error reports, mentioning the exact page URL and (if you have one) a reference source speeds up the fix enormously.

What we can't help with

We can't do your homework for you (the calculators will happily show you the method, though) and we can't give advice on performing chemistry experiments — please ask your teacher or lab supervisor.