Te taui nei te mau taheraa pape i te hoê faito pape i raro a'e i te mau mana o te anuvera raro roa e te faaheporaa teitei. Te vai ra to ' na te hoê faito toetoe roa o te -185.3°C e te hoê vahi haapihaaraa o te -47.4°C.
E titau te tauiraa i te hoê pape i te pape toetoe e te toetoe atoa, with the combination of these two factors being essential for its liquefaction.