List of Refractive Index

Introduction

Here are some popular list of materials and their corresponding refractive index. 

Materials Refractive Index
Vacuum 1 (by definition)
Helium 1.000036
Hydrogen 1.000132
Air at STP 1.000277
Air 1.000293
Carbon dioxide 1.001
Liquid helium 1.025
Perfluorohexane (Fluorinert FC-72) 1.251
Water ice 1.31
TFE/PDD (Teflon AF) 1.315
Intestinal mucosa (human) 1.329-1.338
Water 1.33
Cryolite 1.338
Cytop 1.34
10% Glucose solution in water 1.3477
Polytetrafluoroethylene (Teflon) 1.35–1.38
Acetone 1.36
Ethanol 1.36
Ethanol (ethyl alcohol) 1.361
20% Glucose solution in water 1.3635
Liver (human) 1.369
Sugar solution, 25% 1.3723
Cornea (human) 1.373/1.380/1.401
Lens (human) 1.386–1.406
Kerosene 1.39
Silicone oil (nD25) 1.393–1.403
Ethylene tetrafluoroethylene (ETFE) 1.403
Sylgard 184 (polydimethylsiloxane) 1.4118
Sugar solution, 50% 1.42
60% Glucose solution in water 1.4394
Fused silica (a pure form of glass, also called fused quartz) 1.458
Polylactic acid 1.46
Carbon tetrachloride 1.461