Formic Acid (data Page) - Structure and Properties

Structure and Properties

Structure and properties
Index of refraction, nD 1.3714 at 20°C
Abbe number ?
Dielectric constant, εr 58.5 ε0 at 16 °C
measured at 400 MHz
Bond strength ?
Bond length C=O bond: 123 pm
C–OH bond: 136 pm
Bond angle ?
Magnetic susceptibility ?
Surface tension 37.67 dyn/cm at 20°C
Viscosity
2.2469 mPa·s at 10°C
1.7844 mPa·s at 20°C
1.2190 mPa·s at 40°C
0.5492 mPa·s at 100°C

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