# What is the refractive index of toluene?

The refractive index of toluene is 1.496 at 20 degrees Celsius. From Snell's law, the refractive index of toluene is the ratio of the velocity of light in a vacuum to the velocity of light in toluene.

The refractive index is an important parameter for understanding the optical properties of an object. The velocity of light in a vacuum is 300,000 kilometers per second. The velocity of light in toluene at 20 C is 200,535 kilometers per second. The ratio of these two figures results in the refractive index. Toluene is an organic compound that is incapable of mixing in polar solvents but soluble in non-polar organic solvents.

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