The refrigerant, 1,1,1,2-tetrafluoroethane, has been used since the 1990s to replace older refrigerants, known as ...

Inside what looks like a simple block of frozen water, quantum mechanics is quietly rewriting the rules of chemistry. New calculations are revealing how protons tunnel, bonds flicker and molecules ...

May cause respiratory illness on prolonged exposure. Effects may be more severe for people with lung or heart diseases. ...