This painful little reaction is known as acid reflux, and it can be described as comparable to regurgitating molten oatmeal.

FORBES: Magazine Article

Mr. TOM McCOLLOM (Geochemist, University of Colorado): The sulfate salts that are in there come from reaction of the rock with sulfuric acid rather than from evaporation of a fluid.

NPR: Mars Rover Marks Second Anniversary of Landing

In the second stage, lactic-acid molecules are linked into long chains, or polymers, in chemical-reaction vessels, to produce PLA. What Dr Lee and his colleagues have succeeded in doing, as they report in Biotechnology and Bioengineering, is to produce PLA directly, in a one-stage process, in bacteria.

ECONOMIST: Synthetic biology

It is heated to start the reaction, and when it is complete the resins, residual acetic anhydride and acetic acid are wicked away from the wood, and the pine has become Accoya.

BBC: Rice, straw and coconut the new alternatives to wood