<Tr> <Th> Melting point </Th> <Td> 453.65 K ​ (180.50 ° C, ​ 356.90 ° F) </Td> </Tr> <Tr> <Th> Boiling point </Th> <Td> 1603 K ​ (1330 ° C, ​ 2426 ° F) </Td> </Tr> <Tr> <Th> Density (near r.t.) </Th> <Td> 0.534 g / cm </Td> </Tr> <Tr> <Th> when liquid (at m.p.) </Th> <Td> 0.512 g / cm </Td> </Tr>

Where does most of the worlds salt come from