When choline chloride and urea--both solids--are mixed together in a molar ratio of 1:2, a liquid mixture is formed that freezes at 12 C. As pure compounds, choline chloride ([HOCH 2 CH 2 N(CH 3) 3] + ...
Researchers have patented an eco-friendly liquid mixture that could help trap harmful pollutants from the air. The non-flammable solvent contains urea and choline salt, a common ingredient in chicken ...
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