The potassium carbonate dissolves in the water, along with some other salts. Reducing the aqueous solution down by evaporating much of the water, then filtering it, will leave a clear solution ...

The company took potassium carbonate — a common salt also known as potash ... For businesses with pollution problems, it's a compellingly low-cost, effective solution that tackles pollution at the ...

Others have proposed using potassium carbonate, but most have avoided it ... dissolving the salt in water and bubbling the gas through the solution, isn’t any cheaper than the alternatives.