122 



TABLE 121.— DENSITIES AND MELTING AND BOILING POINTS OF 

 ORGANIC COMPOUNDS 



Substance 



Chemical 

 formula 



Density 

 g/cm a 



Paraffin series : GH 2 



Methane CH 4 . 



Ethane C2H6 



Propane C3H8 



Butane C4H10 



Pentane GH12 



Hexane GH14 



Heptane GH™ 



Octane GHi 8 



Nonane GH20 



Decane C10H22 



Undecane CnH 24 



Dodecane C12H20 



Tridecane O3H28 



Tetradecane G4H30 



Pentadecane G5H32 



Hexadecane CieH 3 « 



Heptadecane G7H36 



Octadecane GsHss 



Nonadecane G9H40 



Eicosane C20H42 



Heneicosane C21H44 



Docosane C22H46 



Tricosane C23H4S 



Tetracosane G«H 5 <> 



Pentacosane C25H52 



Hexacosane GeH 5 4 



Heptacosane G/H 5 e 



Octacosane G«H 58 



Nonacosane C29H60 



Triacontane GoH 02 



Hentriacontane .... GiH 8 4 



Dotriacontane G2H66 



Tetratriacontane . . . G4H70 



Pentatriacontane . . . G5H72 



Hexatriacontane . . . GuH 7 4 



.415 



.546 



.595 



.6011 



.631 



.660 



.684 



.704 



.718 



.747 



.741 



.768 



.757 



.765 



.772 



.775 



.778 



.777 



.777 



.778 



.775 



.778 



.779 



.779 



.779 



.779 



.779 



.779 



.780 



.780 



.781 



.775 



.781 



.782 



.782 



Temp. 

 °C 



Normal 

 -164 



- 88 



— 44 





 20 

 20 

 20 

 17 

 20 

 20 

 20 

 20 

 20 

 20 

 20 

 20 

 20 

 20 

 32 

 37 

 45 

 44 

 48 

 61 

 20 

 20 

 60 

 20 

 20 

 20 

 68 

 79 

 20 

 75 

 76 



+ 

 + 



Melting 



point 



°C 



compounds 

 -184 

 —172.0 

 —189.9 

 -135.0 

 —138.0 



— 94.3 



— 90.0 



— 56.5 



— 53 



— 32.0 



— 26.5 



— 12 



— 6.2 

 5.5 



10 



20 



22.5 



28 



32 



38 



40.4 



44.4 



47.7 



54 



54 



60 



59.5 



65 



63.6 



70 



68.1 



75 



76.5 



74.7 



76.5 



Boiling 

 point 



°c 



only 

 —161.4 



- 88.3 



— 42.0 

 + -6 

 + 36.2 



69.0 

 98.4 



124.6 



150.6 



174 



197 



216 



234 



252.5 



270.5 



287.5 



303 



317 



330 



205 



215 



224.5 



320.7 



324 



284 



296 



270 



318 



348 



235 



302 



310 



255 



331 



265 



Pressure 1 atm 



unless 



otherwise 



stated 



15 mmHg 

 15 mmHg 

 15 mmHg 



40 mmHg 

 40 mmHg 

 15 mmHg 

 40 mmHg 

 40 mmHg 



1.0 mmHg 

 15 mmHg 

 15 mmHg 



1.0 mmHg 

 15 mmHg 



1.0 mmHg 



Olefines or the Ethylene series : GH21.. Normal compounds only 



Ethylene GH, 



Propylene GH e 



Butylene GH 8 



Amylene GH™ 



Hexylene GH12 



Heptylene GH« 



Octylene GHi 6 



Nonylene GH ]8 



Decylene G0H2 



Undecylene GiH 2 



Dodecylene G2H2 



Tridecylene G3H2 



Tetradecylene G4H2 



Pentadecylene G5H3 



Hexadecylene GeH 3 



Octadecylene GsH 3 



Eicosylene GoH 4 



Cerotene G?H 5 



Melene GoH 8 



.566 

 .609 

 .635 

 .651 

 .67 



.703 



.722 



.73 



.763 



.763 



.762 



.80 



.775 



.814 



.789 



.791 



.871 



.890 



-102 



- 47 



- 13.5 

 20 







-169.4 

 -185.2 



-139 



20 — 10 



17 

 15 





 20 

 15 





 20 



20 



20 

 



20 



104 



- 87 



- 31.5 



- 12 



+ 4 

 + 19 



58 

 63 



-103.8 

 — 47.0 



+ 36.4 

 69 



96-99 



123 

 149.9 

 172 

 193 

 96 

 232.7 

 246 

 247 

 274 

 179 

 395 



380 



15 mmHg 



15 mmHg 



(confirmed) 



SMITHSONIAN PHYSICAL TABLES 



