BUSHONG.| Chemical Composition of Petroleum. 313 
DISTILLATION IN VACUO, 22 MM. PRESSURE. 
12, @Us 
Fraction. distillate. Sp. gr. 20°. Ref. index. Remarks. 
60- 80° Bw 0.7637 1.425 Light straw-color. 
80-100° 2.8 0.7683 1.428 sf es es 
100-120° 4.3 0.7814 1.4384 cf Ss 
120-140° 6.0 0.8008 1.443 ne ss “ 
140-160° 8.1 0.8209 1.454 ss ss <o 
160-180° Drill 0.8382 1.462 < sé oe 
180-200° Oni 0.8489 1.469 4 ‘s ae 
200-220° 7.0 0.8608 1.475 nM 5 ot 
220-240° 5.1 0.8911 (2?) 1.482 Solid at 0° crystalline 
paraffin. 
240-260° 6.2 boiled over. do. 
260-280° WAS s e Rich in paraffin. 
280-300 4,2 0.8963 1.498 Solid. 
“The higher distillates in this oil separate paraffin and the 
residue is of a distinctly paraffin nature. The distillates corre- 
spond in character to those obtained from the Trenton lime- 
stone petroleum of Ohio, and show that the hydrocarbons con- 
tained in the oil must, in addition to the paraffins, consist of 
the same series found in the latter oil; that is to say, the 
CnHon-» and CnHon-s series. 
“The residue from the distillation of Kansas oil reveals its 
mixed character by the paraffin scale which it contains and the 
higher fixed carbon which it yields.” 
SULFUR CONTENT. 
About five years ago Bartow and McCollum called attention 
to the low percentage of sulfur contained in Kansas oils.?°° 
They found on the average 0.27 per cent. sulfur in the sixteen 
erude oils which they examined. The method which they used 
was that of Carius, which, though long and tedious, is of the 
highest accuracy. 
In order to get some information regarding the sulfur con- 
tent of the oils described in this chapter, Mr. Harvey G. El- 
ledge and Mr. Wallace E. Pratt made some determinations by 
the briefer method of employing a Parr calorimeter bomb. 
They obtained the following results: 
GASOLINE-PRODUCING CRUDE OILS. 
Wield No. Location of well. Gravity. Sulfur. 
SMM OMSL NTE Virani ce vestoster en senses die estouey i epeiie oiishay apes 30.5" B. 0.38 per cent. 
Gime VIO TIME ee coy aie slic acrenoe = Guns) oseya te onateserions 30.0° B. 0.43 < 
Pi © ANC VA er ecaetec cf isi5 conus ie ss odste) apeoroueaqeneens 32.8° B. 0.31 & 
meee TUen CAOnd: welll) ye sssaraererie eelcie or BVA 1B}, 0.32 es 
Aterenrum (alundeliliiwelli\meeie ci ecricicrca BYALA 183, 0.27 a 
LS Play Re Gule CE ONVAN)|. Sk tite Saicers e Sieh ees wis, eels BHAI 183, 0.48 se 
1G jeer (Celeron wall) oococcdccc0000 Be” 183. 0.27 e 
OB @lvariGeaeec cnet sein ceohsd convene ore 32:02 B: 0.34 e 
AV eracerormelshituwielllShm-eireisties © science 6 0.35 oy 
259. Loe. cit. 
