IN GASES: HYDROGEN, CARBONIC OXIDE, AND OXYGEN. 
6G9 
Experiments were next made with smaller quantities of oxygen. To 100 volumes 
of a mixture containing nearly equal quantities of carbonic oxide and hydrogen, 8'5 
volumes of oxygen were added. Portions of this mixture were exploded under 
increasing pressures at 90° C. The coefficient continued to increase as the pressure 
was raised up to 2000 millims. of mercury. 
Table XXXIX.—Temperature of Eudiometer = 90° C. 
Reference 
No. 
Before the explosion. 
After the 
explosion. 
Oxygen. 
Carbonic 
oxide. 
Hydrogen. 
Carbonic 
oxide. 
Carbonic 
acid. 
Hydrogen. 
Steam. 
Pressure. 
a. 
121 
8-5 
48-2 
51-8 
43-6 
47 
39-3 
125 
millims. 
400 
2-9 
122 
55 
55 
5 5 
43-9 
43 
39-1 
126 
800 
3-3 
123 
55 
55 
55 
43-8 
4 - 5 
387 
13-0 
1000 
3 3 
124 
55 
n 
55 
43-9 
4-4 
38'6 
131 
1500 
3-4 
125 
55 
55 
55 
44-1 
4-2 
39-0 
12-8 
2000 
3-5 
The critical pressure of this mixture is above 2000 millims. Another mixture, 
containing 10 - 2 volumes of oxygen to 100 volumes of the combustible gases, was 
exploded in a similar way under increasing pressures at 90° C. The coefficient con¬ 
tinued to increase as the pressure was raised up to 2000 millims. ; hut in each 
case the coefficient was higher than under the same pressure with the lower pro¬ 
portion of oxygen. 
Table XL.—Temperature of Eudiometer = 90° C. 
Reference 
No. 
Before the explosion. 
After the 
explosion. 
Oxygen. 
Carbonic 
oxide. 
Hydrogen. 
Carbonic 
oxide. 
Carbonic 
acid. 
Hydrogen. 
Steam. 
Pressure. 
a . 
126 
10-2 
532 
46-8 
477 
61 
32'5 
14-3 
millims. 
400 
3-4 
127 
47-3 
5-9 
32 1 
146 
1500 
3*6 
128 
47 5 
5-8 
321 
147 
1750 
37 
129 
55 
55 
55 
47'6 
57 
32-1 
14-6 
2000 
3-8 
The critical pressure of this mixture is above 2000 millims. 
A third mixture with rather more oxygen was exploded in a similar way. 
