Suggestion: More liquids after water

Since water will be coming in VS3, I've been thinking about other liquids that could be added.

My first choice would be lava, because there are already some volcanic locations on both planets. It should definitely do damage to the player or grids. But, in order to allow building and/or collection of lava, there should be temperature-resistant blocks that are immune to lava damage.

My second choice would be some toxic or radioactive chemical, that would be used in processing and crafting, and would be found on alien planets, like the alien planet in SE1.

My third choice would be a liquid that is extremely cold, but still liquid. This would be found in more freezing planets, and would serve roughly the same purpose as lava, but found in different environments. Maybe it could also be converted into hydrogen or oxygen? My inspiration for this is liquid nitrogen, of course.

The main reason as to why I want more liquids, is because we already have the liquid physics (In the future update), so maybe it could be used to make other liquids, with different physics.

Just an idea, but it would be cool if done.