The Chemistry of Powder and Explosives - Sciencemadness Dot Org

282 NITRIC ESTERS
along with the latter substance, and, unless a special purification
is made, remains in the PETN where its presence is undesirable
because of its lower stability.
OH OH
I I
CH2
CH2
HO-CH2-C-CH2-|OH HjO-CH.-C-CHj-OH
I I
CH2
I
CH2
I
OH OH
OH
I
CH2
0N02
L,
HO-CH2-C-CH2-O-CH2-C-CH2-OH
Vyilg OXI2
DipentaeryUulte
NOJ-O-CH2-C-CHS-O-CHS-C-CH2-ONOI
CH2 CH2 ONOS Plpentaerytirite ONOj hexanitrate
Dipentaerythrite hexanitrate 16 by the fractional crystalization
is
from
procured
moist
in
acetone
the pure
PETN which precipitates when the nitration mixture
of
is
th
in
gravity
water,
of 1.630
white
at
crystals,
15°,
m.p.
after being
72°. The
fused
crystals
and solidified
have
to
at
the
15°.
mechanical
The substance
shock
is
of
less
the
sensitive
drop test,
to friction,
and less
less
temperature than PETN, but it is less stable and dec
s
much
Brin
more rapidly at 100°.
117 reports measurements by the Dautriche method
Sprengstcffw.,
nsFriederich and Brin, Ber.,
27, 71,
63,
125,
2861
156
(1930);
(1932).
Brin,
i"Ibid., 27, 126 (1932).
OH