Table II: Physical Properties of Ice Ih at 0^oC

Density                                 0.917 Mg m-3

H-bond length                           276.5 pm

Adiabatic compressibility               0.119 GPa-1

Isothermal compressibility              0.13  GPa-1

Melting point                           273.15 K

Melting point depression		-74 K GPa-1

Specific heat				2.01 kJ kg-1 K-1

Heat of melting				334 kJ kg-1

Thermal conductivity         		2.2 W m-1 K-1

Linear expansion coefficient    	55·1O-6 K-1

Cubical expansion coefficient   	166·1O-6 K-1

Vapor  pressure           		610.7 Pa

Static dielectric constant      	96.5

High-frequency dielectric constant	3.2

Dielectric relaxation time      	20 µs

Activation energy
  for dielectric relaxation     	55  kJ mol-1

Refractive index           		1.31

Electric dc conductivity
  of ice single crystals at -10oC 	1.1·10-8 S m-1
  of polycrystalline glacier ice  	10-5 - 10-6  S m-1

Proton  mobility          		0.8·10-4 m2 V-1 s-1

Acoustic velocity
  longitudinal wave  			1928 m s-1
  transverse wave          		1951 m s-1

Velocity of radio waves        		170 m µs-1