HAYES 
KENNEDY 
AND] 
DY. I 
CHEMICAL PROPERTIES OF THE OIL. 
153 
The specific gravity and refractive index of the Beaumont distillates 
as compared with those from the Ohio and Pennsylvania oils are 
shown as follows: 
Character of distillates. 
Beaumont. 
Ohio. 
Pennsyl 
^ania. 
Specific- 
gravity. 
Refract- 
ive index. 
Specific 
gravity. 
Refract- 
ive index. 
Specific 
gravity. 
Refract- 
ive index. 
Below 150° . . 
0. 8749 
.9089 
.9182 
.8704 
( B ) 
1.473 
1.501 
1.508 
1.473 
0. 7297 
. 8014 
1.8404 
.8643 
. 8006 
1.412 
1.442 
1.468 
1.481 
1.443 
0. 7188 
.7984 
.8338 
Paraffin. 
.7791 
1.415 
150° to 800° . - 
1.437 
300° to 350° 
350° to 400° 
1.462 
1.470 
After acid treatment: 
150° to 300° . . 
1.438 
"Amount too small. 
The residue after distillation of the Beaumont oil, amounting to 9.9 
per cent of the original oil, was evaporated in an open dish to G per 
cent. It was then a brittle pitch which had the following properties: 
Properties of residue after distillation of Beau?nont oil. 
Specific gravity 1 . 0454 
Color Black. 
Luster , Shiny. 
Structure Massive. 
Fracture Conchoidal. 
Hardness-penetration . - 15° . 
Soluble in CS 2 per cent. . 99. 8 
Organic insoluble 0.1 
Mineral matter 0.1 
100 
Soluble in 88° naphtha 60 
This is per cent of total bitumen 60. 1 
Soluble in 62° naphtha 64. 8 
This is per cent of total bitumen 64. 9 
Bitumen yields on ignition — 
Fixed carbon per cent. _ 21. 13 
Volatile hydrocarbon 78. 
CONSTITUTION. 
The chemical constitution of the Texas petroleum has not yet been 
thoroughly investigated, but Richardson and Wallace in the article 
quoted above a reach the conclusion that it contains a large propor- 
tion of unsaturated hydrocarbons, which are removed by treatment 
with an excess of strong sulphuric acid and washing soda. It also 
a Jour. Soc. Chem. Industry, Vol. XX, 1901, p. 69:3. 
