RefractiveIndex.INFO

Refractive index database

nk database   |   n2 database   |   about

Shelf

Book

Page

Optical constants of C7H16 (Heptane)
Kerl and Varchmin 1995: n-Heptane; 293 K; n 0.326–0.644 µm

Wavelength: µm
 (0.326–0.644)  
 

Complex refractive index (n+ik)[ i ]


n   k   LogX   LogY   eV

Derived optical constants

Dispersion formula [ i ]

$$n=1.38248838-4.05375\text{×}10^{-3}λ^{-1}+4.58433\text{×}10^{-3}λ^{-2}$$

Comments

n-Heptane; 293 K (20 °C). See the original publication for the expression for n(λ,T).

References

K. Kerl, H. Varchmin. Refractive index dispersion (RID) of some liquids in the UV/VIS between 20°C and 60°C, J. Mol. Struct. 349, 257-260 (1995)

Data

[Expressions for n]   [CSV - comma separated]   [TXT - tab separated]   [Full database record]

INFO

Heptane, C7H16

Heptane (C7H16) is a straight-chain alkane hydrocarbon. It is a clear, colorless liquid that is less dense than water and exhibits a characteristic odor reminiscent of petrol. Being flammable, it is used in many laboratory settings as a non-polar solvent for organic substances. Heptane is also employed as a fuel in various applications and forms a significant component of gasoline. Due to its non-polarity, it is unsuitable for dissolving polar compounds but works effectively with non-polar molecules. In the field of optics, heptane can be used in a variety of experiments and setups that require a liquid medium with specific refractive properties.

External links