822 |
Ballistite, Italian | 1317 | 58l | 245 | 826 |
and Spanish | | | | |
______________________|__________|___________|_________|______________|

The figures in column headed "Co-efficient of Potential Energy" serve as a
measure of comparison of the power of the explosives, and are the products
of the number of calories by the volume of gas, the last three figures
being suppressed in order to simplify the results.

The amounts of water found were calculated for comparison as volumes of
H_{2}O gas at 0 deg. and 760 mm.

E.C. powder consists principally of nitro-cellulose mixed with barium
nitrate and a small proportion of camphor.

S.S. of nitro-lignine mixed with barium nitrate and nitro-benzene.

Troisdorf powder is gelatinised nitro-cellulose; rifleite gelatinised
nitro-cellulose and nitro-benzene.

Cordite contains 58 per cent. nitro-glycerine, 37 per cent. gun-cotton,
and 5 per cent. vaseline.

Ballistite (Italian) consists of equal parts nitro-cellulose and nitro-
glycerine, and 1/2 per cent. of aniline. The German contains a higher
percentage of nitro-cellulose.

TABLE SHOWING THE HEAT DEVELOPED BY EXPLOSIVES CONTAINING NITRO-GLYCERINE
AND NITRO-CELLULOSE IN DIFFERENT PROPORTIONS.

______________________________________________________________________
Composition of Explosives. | Calories per cent.
_____________________________________________|________________________
Nitro-cellulose | |
(N = 13.3 per cent.). | Nitro-glycerine. |
| |
100 per cent. dry pulp | 0 | 1061
100 " gelatinised | 0 | 922
90 " | 10 per cent. | 1044
80 " | 20 " | 1159
70 " | 30 " | 1267
60 " | 40 " | 1347
50 " | 50 " | 1410
40 " | 60 " | 1467
0 " | 100 " | 1652
__________________________|__________________|________________________
| |
Nitro-cellulose | |
(N=12.24 per cent.) | Nitro-glycerine. |
|