Engineering ToolBox - Resources, Tools and Basic Information for Engineering and Design of Technical Applications!

This is an AMP page - Open full page! for all features.

Refractive Index for some common Liquids, Solids and Gases

Some common fluids and their refractive index

Sponsored Links

Refraction is an effect that occurs between transparent materials of different densities.

The Refractive Index  - n - of a medium is a measure for how much the velocity of light is reduced inside the medium. The velocity of light in a medium can be expressed as

v  = c / n                                          (1)

where

v = velocity of light in the medium (m/s, ft/s)

c = speed of light in air or vacuum - approximately 3 108 m/s (or 299792458 m/s)

n = refractive index

The index of refraction is defined as

  • "the speed of light in vacuum divided by the speed of light in the medium".

Index of Refraction for Vacuum

  • n = 1.00

Refractive Indices for some common Gases

GasRefractive Index
- n -
Acetone 1.001090
Air 1.000293
Alcohol, ethyl 1.000878
Alcohol, methyl 1.000586
Ammonia 1.000376
Argon 1.000281
Benzene 1.001762
Bromine 1.001132
Carbon dioxide 1.000449
Carbon disulphide 1.001481
Carbon monoxide 1.000338
Chlorine 1.000773
Chloroform 1.001450
Ether, ethyl 1.001533
Ether, methyl 1.000891
Helium 1.000035
Hydrochloric acid 1.000447
Hydrogen 1.000132
Methane 1.000444
Nitric oxide 1.000297
Nitrogen 1.000298
Nitrous oxide 1.000516
Oxygen 1.000271
Pentane 1.000686
Sulphur dioxide 1.000686
Water vapor 1.000261

Index of Refraction for common Liquids

FluidRefractive Index
- n -
Acetic Acid 1.37
Acetone 1.36
Alcohol, ethyl (ethanol) 1.36
Alcohol, methyl (methanol) 1.33
Alcohol, propyl 1.38
Aniline 1.586
Benzene 1.501
Benzyl benzoate 1.568
Carbon disulfide 1.63
Carbon tetrachloride 1.46
Chlorobenzene 1.525
Chloroform 1.44
Decane 1.41
Dodecane 1.41
Ether 1.35
Ethylene glycol 1.43
Ethyl salicylate 1.523
Ethyl cinnamate 1.559
Trichlorofluoromethane refrigerant R-11 1.37
Dichlorodifluoromethanerefrigerant R-12 1.29
Chlorodifluoromethane refrigerant R-22 1.26
Furan 1.47
Glyserine (Glycerol) 1.47
Heptane 1.38
Hexane 1.37
Methyl salicylate 1.538
Methylene iodine 1.737
Milk 1.35
Octane 1.40
Oil, cedar 1.516
Oil, vegetable 50oC 1.47
Oil, oiive 1.46
Oil, turpentine 1.47
Paraldehyde 1.405
Parafin, liquid 1.48
Propane 1.34
Propylene 1.36
Propylene glycol 1.43
Quinoline 1.627
Toluene 1.497
Turpentine (wood) 1.47
Water 1.333

Example - Speed of Light in Air

The speed of light in air can be calculated as

v  = (299792458 m/s) / 1.000293

    = 299704645 m/s

Example - Speed of Light in Water

The approximate speed of light in water can be calculated as

v  = (3 108 m/s) / 1.33

    = 2.26 108 m/s

Index of Refraction for some common Solids

SolidRefractive Index
- n -
Crown glass 1.5 - 1.62
Diamond 2.417
Flint glass 1.57 - 1.75
Ice 1.31
Plexiglas 1.49
Polystyrene 1.59
Salt 1.52

Example - Speed of Light in Glass

The approximate speed of light in glass can be calculated as

v  = (3 108 m/s) / 1.6

    = 1.88 108 m/s

Sponsored Links

Related Topics

Related Documents

Sponsored Links

Share

Search Engineering ToolBox

  • the most efficient way to navigate the Engineering ToolBox!

SketchUp Extension - Online 3D modeling!

Add standard and customized parametric components - like flange beams, lumbers, piping, stairs and more - to your Sketchup model with the Engineering ToolBox - SketchUp Extension - enabled for use with the amazing, fun and free SketchUp Make and SketchUp Pro .Add the Engineering ToolBox extension to your SketchUp from the Sketchup Extension Warehouse!

Privacy

We don't collect information from our users. Only emails and answers are saved in our archive. Cookies are only used in the browser to improve user experience.

Some of our calculators and applications let you save application data to your local computer. These applications will - due to browser restrictions - send data between your browser and our server. We don't save this data.

Google use cookies for serving our ads and handling visitor statistics. Please read Google Privacy & Terms for more information about how you can control adserving and the information collected.

AddThis use cookies for handling links to social media. Please read AddThis Privacy for more information.

Topics

Unit Converters

Temperature

oC
oF


Load Calculator!

Length

m
km
in
ft
yards
miles
naut miles


Load Calculator!

Area

m2
km2
in2
ft2
miles2
acres


Load Calculator!

Volume

m3
liters
in3
ft3
us gal


Load Calculator!

Weight

kgf
N
lbf


Load Calculator!

Velocity

m/s
km/h
ft/min
ft/s
mph
knots


Load Calculator!

Pressure

Pa (N/m2)
bar
mm H2O
kg/cm2
psi
inches H2O


Load Calculator!

Flow

m3/s
m3/h
US gpm
cfm


Load Calculator!

11 29

This website use cookies. By continuing to browse you are agreeing to our use of cookies! Learn more