So, if astrobiologists ever do find alien life with a weird chemistry that uses some liquid other than water, it's not likely ...

The filtrate can then be evaporated to leave the salt produced. Watch this video of a practical demonstration in which copper carbonate and sulfuric acid react to produce copper sulfate.

Zinc and iron also react with hydrochloric acid. Magnesium, zinc and iron also react with sulfuric acid. The products are a salt (in this case a sulfate) and hydrogen. For example: ...