aqueous id
your reply to das energy Peter
your last paragraph "... completely harmless..." is true if it is contained. i.e. not in the earths atmosphere. would leaky systems be a threat like the old refrigerants CFC ??
your reply to das energy Peter
your last paragraph "... completely harmless..." is true if it is contained. i.e. not in the earths atmosphere. would leaky systems be a threat like the old refrigerants CFC ??