396 



NAPHTHA, COAL 



Light Oils. 

 Into 2 fractionals. 



No. 1. That which passes over, up to 

 140 Cent., constituting naph- 

 tha. 



No. 2. That which passes over, above 

 140 Cent, is mixed with No. 

 2 fractional distillation of the 

 middle oils. 



THIRD DISTILLATION. 



Middle Oils. 

 Into 3 fractionals. 



No. 1. That which passes over, up to 

 130* Cent., is remixed with 

 the naphtha. 



No. 2. That which passes betwixt 130 

 and 200 = rectified creasote 

 oil. 



No. 3. That which passes over, above 

 200 Cent, is counted anthra- 

 cene oil. 



TREATMENTS BY WASHING. 



Sectijied Light Oils or Naphthas. 

 (39 to 140 -Cent). Subjected to 



1 washing with pure water. 



2 washings with sulphuric acid. 

 2 washings with water. 



1 washing with soda. 



2 washings with water. 



Middle Bectififd Oils. 

 (140 to 200 Cent.) Subjected to 



1 washing with pure water. 



2 washes with sulphuric acid. 

 2 washes with pure water. 



-1 washing with soda. 

 2 washes with pure water. 



Crude Heavy Anthracene Oils. 



(200 to 350 Cent.) Subjected to 



1 wash with pure water. 



2 washes with hydrochloric acid. 

 1 wash with pure water. 



1 wash with soda. 



2 washes with water. 



FOTJBTH DISTILLATION. 



Naphtha. 

 Into 4 fractionals. 



No. 1. That which passes betwixt 39 80 Cent. 



No. 2. 80 11 6 Cent benzole. 



No. 3. 115 150 Cent. 



No. 4. a little over 150 Cent 



Middle Rectified Oils. 

 Into 2 fractionals. 



No. 1. That which passes 140 to 190 



Cent 

 No. 2. That which passes over 190 



Cent, is mixed with the 



heavy oils. 



Pure Heavy Oils. 

 Into 3 fractionals. 



No. 1. That which passes from 215 to 



230 Cent 

 No. 2. That which passes from 230 to 



290 Cent. 

 No. 3. That which passes from 300 to 



340 Cent. 



The Light Oils or Naphthas contain the following bodies : 



Boiling-point. 

 Cent. 



Ammonia and ammoniacal salts 



Amylene 39 



Traces of propylene, butylene dissolved in their homo- 

 logous liquids .......... 



Caproylene or hexyleno 65 to 70 



Hydruret of hexyle 68 



Petinine 80 



Benzine 82 to 83 0"850 



CEnanthyleno or heptylene 94 



Toluene 105 to 108 



Parabenzine 97 to 98 



Hydruret of octyle 116tollS 



