Why it is very rare to find a compound that lacks carbon to be liquid at standard temperatures and pressures?

It is the first time I heard such a generalization, I had no idea. Why being liquid in standard conditions is special to compounds which contain carbon atom? Which property of carbon cause this? 




The property of carbon that causes this is the ability to form rings and chains that are stable under atmospheric conditions.


The only reason why ‘so many liquids contain carbon’ is basically confirmation bias. There are orders of magnitude more compounds known that contain carbon than those that do not. For the longest time in the history of chemistry, inorganic chemistry was restricted to very simple molecules of only a handful of atoms while polymerisation was already a thing in organic chemistry. Furthermore, a large proportion of ionic compounds is inorganic—or, in the context of this question better: carbon-free—and most of these are solids at standard temperature and pressure adding to the confirmation bias.


Thus, by sheer economy of scale the number of known carbon-containing liquids is far higher than the number of known carbon-free liquids.


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