290 



Table 346. 



INDEX OF REFRACTION. 



Indices of Refraction of Liquids Relative to Air. 



Substance. 



Acetaldehyde, CH3CHO 



Acetone, CH3COCH3 



Aniline, C6H6.NH2 



Alcohol, methyl, CH3.OH 



'• ethyl C2H6.OH 



" dn'/'di.'.'.'.'.'.'.'.'.'.'. 

 n-propyl CjHt.GH . . . 



Benzene, OrHb 



Qf.Hf.cln/dt 



Bromnaphthalene, CjnH7Br. . . 

 Carbon disulphide, CiSj 



" tetrachloride, CClV.... 



Chinolin, CsHtN 



Chloral, CCI3.CHO 



Chloroform, CHCI3 



Decane, C10H22 



Ether, ethyl, C2H5.O.C2H6. . . . 



" " in/dl 



Ethyl nitrate, C2H0.O.NO3. . . . 



Formic acid, H.CO2H 



Glycerine, CsHsOs 



Hexane, CH3(CH2)4CH3 



Hexylcne, CH3(CH2)3CH.CH2. 

 Methyl iodide, CH3I 



■' " dn/dt 



Naphthalene, CioHs 



Nicotine, C10H14N2 



Octane, CH3(CH2)6CHa 



Oil, almond 



anise seed 



bitter almond 



cassia 



cinnamon 



olive 



rock 



turpentine 



Pentane, CH3(CH2)3CH3'. '. '. '. '. '. 

 Phenol, CsHtOH 



Styrene'.'CeHs'CH.CHj.' .;'.;;; 



Thymol, C10H14O 



Toluene, CHa.CaHt 



Water, HjO 



Author- 

 ity. 



Means 



lb 

 Means 



Means 



id 



Means 



le 

 Means 



Means 

 if 



ig 

 lb 

 li 

 ih 

 10 

 Means 



References: 1, Landolt and Bornstein (a, Landolt: b, Korten; c, BrUhl; d, Haagen; e, Landolt, Jahn; 

 f, Nasmi, Bemheimer; g, Eisenlohr; h, Eykman; i, Auwers, Eisenlohr); 2, Korten; 3, Walter; 4, Ketteler; 

 S, Landolt; 6, Olds; 7, Baden Powell; 8, WiUigen; 9, Fraunhofer; 10, Briihl. 



Smithsonian Tables. 



