The amounts of water found were calculated for comparison as volumes of
H_{2}O gas at 0° 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. |
| |
80 per cent. | 20 per cent. | 1062
60 " | 40 " | 1288
50 " | 50 " | 1349
40 " | 60 " | 1405
| |
__________________________|__________________|________________________|
Nitro-cellulose | |
(N = 13.3 per cent.). | Nitro-glycerine. | Vaseline.
| |
55 per cent. | 40 per cent. | 5 per cent. 1134
35 " | 60 " | 5 " 1280
__________________________|__________________|________________________
TABLE OF RESULTS OBTAINED BY LIEUT. W. WALKE., OF THE ARTILLERY, U.S.A, WITH QUINAN'S PRESSURE GAUGE.
Nitro-glycerine being taken as 100. (From U.S. Naval Inst. Jour.)