<Tr> <Td> Diamond (at 4K) </Td> <Td> 7002443000000000000 ♠ 443 </Td> <Td> 7007640000000000000 ♠ 64 × 10 </Td> </Tr> <P> A material with a bulk modulus of 35 GPa loses one percent of its volume when subjected to an external pressure of 0.35 GPa (~ 7008350000000000000 ♠ 3500 bar). </P> <Table> Approximate bulk modulus (K) for other substances <Tr> <Td> Water </Td> <Td> 7009220000000000000 ♠ 2.2 GPa (value increases at higher pressures) </Td> </Tr> <Tr> <Td> Methanol </Td> <Td> 7008823000000000000 ♠ 823 MPa (at 20 ° C and 1 Atm) </Td> </Tr> <Tr> <Td> Air </Td> <Td> 7005142000000000000 ♠ 142 kPa (adiabatic bulk modulus) </Td> </Tr> <Tr> <Td> Air </Td> <Td> 7005101000000000000 ♠ 101 kPa (constant temperature bulk modulus) </Td> </Tr> <Tr> <Td> Solid helium </Td> <Td> 7007500000000000000 ♠ 50 MPa (approximate) </Td> </Tr> </Table> <Tr> <Td> Water </Td> <Td> 7009220000000000000 ♠ 2.2 GPa (value increases at higher pressures) </Td> </Tr>

Isothermal bulk modulus of gas at atmospheric pressure