INWIT™ — REFRACTIVE INDICES


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Refractive Indices

by Vincent Mallette
Copyright © 1999 Inwit Publishing, Inc.

Refractive Indices of Available Liquids, and
Refractive Indices That Can Be Produced by Mixing

Refractive indices

(measured in average daylight at 20-22° C)

1.32

Methyl alcohol

1.333

Water

1.358

Acetone

1.36

Ethyl alcohol

1.38

Ethyl butyrate

1.39

Hexane

1.394

iso-Butyl alcohol

1.40

Heptane

1.40

Ethylene glycol monomethyl ether

1.41

Amyl alcohol

1.41

Ethylene glycol monoethyl ether ("Cellosolve")

1.42

Ethylene glycol monobutyl ether

1.44

Chloroform

1.44

Ethylene chloride

1.45

Kerosene

1.46

Carbon tetrachloride

1.47

Cajeput oil [don’t ask]

1.47

Glycerol

1.47

Olive oil

1.475

Paraffin oil ("Nujol")

1.475

Turpentine

1.48

Castor oil

1.49

Dibutyl phthalate

1.494

Xylene

1.495

Benzene

1.50

Lubricating oil (automobile)

1.515

Anisole

1.515

Cedar wood oil

1.52

Chlorobenzene

1.53

Clove oil

1.54

Ethylene bromide

1.55

Nitrobenzene

1.56

Tricresyl phosphate

1.56

Bromobenzene

1.57

o-Toluidine

1.58

Bromophenol

1.586

Aniline

1.59

Bromoform

1.60

Cassia oil

1.61

Quinaldine

1.615

Cinnamic aldehyde

1.62

Iodobenzene

1.62

Quinoline

1.625

Carbon disulfide

1.63

a -Chloronaphthalene

1.66

a -Bromonaphthalene

1.74

Methylene iodide

1.78

Methylene iodide saturated with sulfur

1.87

Methylene iodide, S. CHI3 , SnI4 , AsI3 , SbI3

1.64 - 2.10

Piperine, AsI3 , SbI3

2.0 - 2.7

Sulfur-Selenium mixtures

The following from Handbook of Chemical Microscopy
by Chamot and Mason, John Wiley & Sons

Refractive Index

(daylight, 20-22 °C)

Ethyl alcohol

n = 1.362

Ethylene glycol ethyl ether ("Cellosolve")

n = 1.407

Kerosene

n = 1.443

1.370

50 cc.

9 cc.

--

1.380

50

30

--

1.390

35

50

--

1.400

10

50

--

1.410

--

50

5 cc.

1.420

--

50

35

1.430

--

35

75

1.440

--

5

75

General combinations

Refractive indices

Mixtures

1.450 - 1.475

Kerosene and turpentine

1.480 - 1.535

Turpentine and ethylene bromide or clove oil

1.540 - 1.635

Clove oil and a -bromonaphthalene

1.640 - 1.655

a -bromonaphthalene and a -chloronaphthalene

1.650 - 1.740

a -bromonaphthalene and methylene iodide

1.740 - 1.790

Sulfur dissolved in methylene iodide

1.790 - 1.960

Methylene iodide, antimony iodide, arsenic sulfide, antimony sulfide, and sulfur


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