Index of Refraction
| Material | Index | |
| Vacuum | 1.00000 |
| Air at STP | 1.00029 |
| Ice | 1.31 |
| Water at 20 C | 1.33 |
| Acetone | 1.36 |
| Ethyl alcohol | 1.36 |
| Sugar solution(30%) | 1.38 |
| Fluorite | 1.433 |
| Fused quartz | 1.46 |
| Glycerine | 1.473 |
| Sugar solution (80%) | 1.49 |
| Typical crown glass | 1.52 |
| Crown glasses | 1.52-1.62 |
| Spectacle crown, C-1 | 1.523 |
| Sodium chloride | 1.54 |
| Polystyrene | 1.55-1.59 |
| Carbon disulfide | 1.63 |
| Flint glasses | 1.57-1.75 |
| Heavy flint glass | 1.65 |
| Extra dense flint, EDF-3 | 1.7200 |
| Methylene iodide | 1.74 |
| Sapphire | 1.77 |
| Rare earth flint | 1.7-1.84 |
| Lanthanum flint | 1.82-1.98 |
| Arsenic trisulfide glass | 2.04 |
| Diamond | 2.417 |
|
Index
Tables |