Water (data Page) - Structure and Properties

Structure and Properties

Structure and properties
Index of refraction, nD 1.333 at 20 °C
Dielectric constant 88.00 ε0 at 0 °C 86.04 ε0 at 5 °C
84.11 ε0 at 10 °C 82.22 ε0 at 15 °C
80.36 ε0 at 20 °C 78.54 ε0 at 25 °C
76.75 ε0 at 30 °C 75.00 ε0 at 35 °C
73.28 ε0 at 40 °C 71.59 ε0 at 45 °C
69.94 ε0 at 50 °C 66.74 ε0 at 60 °C
63.68 ε0 at 70 °C 60.76 ε0 at 80 °C
57.98 ε0 at 90 °C 55.33 ε0 at 100 °C
Bond strength 492.215 kJ/mol O–H bond dissociation energy
Bond length 95.87 pm (equilibrium)
Bond angle 104.4776° (equilibrium)
Magnetic susceptibility −9.04 × 10−6 volume SI units

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