The Chemistry of Powder and Explosives - Sciencemadness Dot Org

TR1NITR0ANIS0L AND TRINITROPHENETOL 169
Tenmerature, C.
0
10
20
30
40
50
60
70
80
90
100
SOLUBILITY OF GUANIDINE PICBATE
(Grams per 100 cc. of solution)
Water
0 005
. 0.038
0 070
0 100
. 0 150
0 230
. 0 350
0 480
0 700
1 010
1 380
Ethyl Alcohol
0 077
0 093
0 122
0 153
0 200
0 255
0 321
0.413
0 548
...
Aceton
0 455
0 525
0 605
0 695
0 798
0 920
1 075
• • •
Trinitrocresol (evesylite)
This explosive is prepared from m-cresol by a process entirely
similar to that by which picric acid is prepared from phenol. The
pure material is readily soluble in alcohol, ether, and acetone,
soluble in 449 parts of water at 20° and in 123 parts at 100°,
yellow needles from water, m.p 107°. The ammonium sa't, which
is sparingly soluble in water, has been used in the composition of
certain ammonium nitrate explosives, and it was adopted by the
Austrian monarchy under the name of ecrasite as an explosive for
shells of large caliber.
Trinitroresorcinol (styphnic acid)
Resorcinol nitrates readily to the trinitro compound, yellow
prisms from water or alcohol, m.p. 175 5°. Styphnic acid is more
expensive and less powerful than picric acid. Liouville 67 found
that styphnic acid exploded in a manometric bomb, at a density
of loading of CT.2, gave a pressure of 2260 kilos per sq. cm.,
whereas picric acid under the same conditions gave a pressure of
2350 kilos per sq. cm. It did not agglomerate to satisfactory
pellets under a pressure of 3600 kilos per sq. cm. It is a fairly
strong dibasic acid, and its salts are notably more violent explosives
than the picrates. Lead styphnate has been used to facilitate
the ignition of lead azide in detonators.
Trinitroanisol and Trinitrophenetol
2,4,6-Trinitroanisol (2,4,6-trinitrophenyl methyl ether, methyl
picrate) has explosive properties comparable with those of picric
67 Mem. poudres, 9, 139 (1897-1898).