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Water Physical Properties
Molecular Formula H2O Beilstein Registry 2050024
Molecular Weight 18.02 EG/EC Number 2317912
CAS Number 7732-18-5 MDL Number MFCD00011332
Density 1.000 g/mL at 3.98 °C Dielectric Constant 80.10 at 20°C
Boiling Point 100°C Dipole Moment 1.82
Melting Point 0.0°C UV cutoff 191 nm
Viscosity (cP)  1.000 at 20°C Refractive Index 1.340 at 20°C