[NurdRage] Make sulfuric acid from oxalic acid with the sun ( www.youtube.com )
Not very practical, but the chemistry is interesting. Producing a strong acid from a weak acid by using precipitation as the driving force is something I don't see very often.
![](https://kbin.chat/media/cache/resolve/entry_thumb/2c/11/2c1177a09ecf5b1061f8d1f6baa235984208f14d51a204e4d79ee45415a28057.jpg)