530 



TABLE 551.— INDEX OF REFRACTION OF SOME LIQUIDS RELATIVE TO AIR 



Substance Density 



Acetaldehyde, CH 3 CHO 780 



Acetone, CH3COCH3 791 



Aniline, CeH.-NH, 1.022 



Alcohol, methyl, CH 3 -OH 794 



ethyl, GH.-OH 808 



" 800 



" dn/dt - 



n-propyl GH,-OH 804 



Benzene, GH, 880 



CeH 9 dn/dt — 



Bromnaphthalene, GoH 7 Br 1.487 



Carbon disulfide, CS 2 1.293 



1.263 



tetrachloride, CCU 1.591 



Chinolin, GH,N 1.090 



Chloral, CCh-CHO 1.512 



Chloroform, CHC1 3 1.489 



Decane, G0H22 728 



Ether, ethyl, GH 5 -0-C 2 H s 715 



dn/dt — 



Ethyl nitrate, GH 5 -0-N0 3 1.109 



Formic acid, H-C0 2 H 1.219 



Glycerine, C 3 H 8 3 1.260 



Hexane, CH 3 (CH 2 ) 4 CH 3 . . . * 660 



Hexylene, CHaCCH^CH-CH, ... .679 



Methylene iodide CHJ 2 3.318 



" dn/dt — 



Naphthalene, GoH 8 962 



Nicotine, GoH, 4 N 2 1.012 



Octane, CH 3 (CH 2 ) 8 CH 3 707 



Oil, almond 92 



anise seed 99 



" 99 



bitter almond 1.06 



cassia — 



cinnamon 1.05 



olive 92 



rock — 



turpentine 87 



87 



Pentane, CH 3 (CH 2 ) 3 CH 3 625 



Phenol, GH 5 OH 1.060 



" 1.021 



Styrene, GH 5 CH-CH 2 910 



Thymol, GoH,«0 982 



Toluene, CH 3 - GH 6 86 



Water, H 2 — 



SMITHSONIAN PHYSICAL TABLES 



