Vapour-Densities of some Carbon Compounds. 509 



Table II. 

 Methyl Alcohol. I. 



Weight of substance = 008819 grain = w. 

 Volume corrections :—a=0-17(l )(3 = 0099. (a4-j3) = 0-275. 

 Temperature=129"G0° ; that of chlorobenzene boiling under 719"2 mms. 

 Length in mnis. of A=(M- 177); B = 168; C=118. 



Point 12 3 4 5 



Length of D 21 86 138 195 246 



Volumeinc.es 228962 201-856 179-463 156-379 134656 



{a-Jt^) 0-275 0-275 0-275 0-275 0275 



228-687 201-581 179188 156104 134381 

 h 0-858 0-756 0-674 0-587 0504 



True volume 229-54 202-34 179-86 156 69 13488 



Temp, of A 16-6° 16-6° 16-2° 16-4° 16-4° 



„ B 18-5° 19-0° 18-7° 19-0° 19-0° 



„ C 69-0° 69-5° 69-5° 695° 69-3° 



Manometer 450-89 555-25 650-03 760-17 881'30 



+0-06 0-06 006 0-06 0-06 0-06 



+c 1-47 1-48 1-48 1-48 1-48 



+ d 0-49 2-01 3-22 4-55 5-73 



X= 452-91 558-80 654*79 766-26 888-57 



Points 126-85 192-05 245-64 300-69 352-48 



+/ 0-11 0-18 0-23 0-29 0-34 



+pointO 23-73 23-88 23-83 23-78 23-75 



+ a 0-82 1-13 1-38 1-72 2-08 



+h 0-56 0-58 0-57 0-58 0-58 



-\-e 1-10 1-10 1-10 1-10 1-10 



Y= 15317 218-92 272-75 328-16 380-33 



P = (X-Y) 299-74 339-88 38204 43810 508-24 



PrMT 1940-2 1939-2 1937-8 1935-7 1933-2 



Methyl Alcohol. II. 



Weight of substance = 0-10427 gram. Temperature =129-60^*. 



Volumeinc.es 229-61 202-40 179-92 15675 



Pressure in mms. ... 363-82 401-19 451-01 517-11 



VvmT 1937-6 1936-6 1935*3 1933-2 



Compressibility. 



Volume 32-162 19-267 12-279 



Pressure 75893 12659 198-50 



Factor 0-79735 0-79735 0-79735 



Vv/mT 1946-2 1944-9 19435 



Py/wT at zero pressure- 1947-3. 



* In this experiment a sample of chlorobenzene was used as a jacket, which 

 was afterwards found to be impure, for its boiling-point varied by some tenths 

 of a degree ; it also contained moisture. 



