International
Tables for
Crystallography
Volume C
Mathematical, physical and chemical tables
Edited by E. Prince

International Tables for Crystallography (2006). Vol. C, ch. 3.3, p. 160

Table 3.3.2.1 

E. S. Larsen Jr,a R. Meyrowitzb and A. J. C. Wilsonc

aUS Geological Survey, Washington 25, DC, and Harvard University, Cambridge, MA, USA,bUS Geological Survey, Washington 25, DC, USA, and cSt John's College, Cambridge, CB2 1TP, England

Table 3.3.2.1| top | pdf |
Immersion media for general use in the measurement of index of refraction

Note: Further lists are given by Hartshorne & Stuart (1960[link]).

 [n^{20^\circ\rm C}_{D}]Temperature coefficient (dn/dT)Dispersion
Water 1.333 1 × 10−4 Slight
Glycerol 1.473 2.2 × 10−4 Slight
n-Octane 1.400 4.8 × 10−4
n-Hexadecane 1.434 3.8 × 10−4 Slight
Kerosene (Paraffin) 1.448 3.5 × 10−4 Slight
Petroleum oil (Nujol) 1.477 4 × 10−4 Slight
α-Chloronaphthalene 1.626 4 × 10−4 Moderate
Methylene iodide 1.740 6.4 × 10−4 Rather strong
Methylene iodide saturated with sulfur 1.778 6 × 10−4 Rather strong
AsBr3 plus 10% sulfur (mix with methylene iodide or α-bromonaphthalene for lower n) 1.814 (25° C) 7 × 10−4 Rather strong
2S, 2As2S2, 6AsBr3 (mix with 10% sulfur in AsBr3 for lower n) 2.003 (25° C) 6 × 10−4 Rather strong
2Se, 2As2S2, 6AsBr3 (mix with 10% sulfur in AsBr3 for lower n) 2.11 (25° C) 6 × 10−4 Rather strong