Environmental Engineering Reference
In-Depth Information
Dimethylol nitropropane dinitrate (2-ethyl-2-nitropropyleneglycol-1,3-dinitrate)
is a liquid, which cannot dissolve cellulose nitrate. Dimethylol nitropropane dini-
trate is a liquid explosive with weak explosion property, slightly higher than
chrysolepic acid. Its lead-block value is larger than chrysolepic acid by 25 % and
the shock sensitivity is weaker than chrysolepic acid.
5.3.5.7 Property and Preparation of Nitromethoxy Methanol Nitrate
Nitromethoxy methanol nitrate, also called methyl ether nitro nitrate, is a colorless
oily liquid with slightly higher explosion property than glycol dinitrate. It is a liquid
explosive with a wide application potential.
(1) Properties of nitromethoxy methanol nitrate
Molecular formula: C
2
H
4
O
6
N
2
Chemical structure:
CH
2
ONO
2
O
CH
2
NO
2
Molecular weight: 151.96
Oxygen balance: 0 % (CO
2
-based)
Nitrogen content: 18.43 %
Boiling point: 48
°
C (15 mmHg)
C)
Ignition point: 150
°
C (220
°
C for glycol dinitrate)
Its shock sensitivity is stronger than glycol dinitrate. It has been found that 10 %
explosion risk for glycol dinitrate needs shock energy of 0.91 kg m/cm
2
, while for
nitromethoxy methanol nitrate only 0.11 kg m/cm
2
is needed. Nitromethoxy
methanol nitrate is able to dissolve collodion and more volatile than glycol nitrate.
The chemical stability and explosion property of nitromethoxy methanol nitrate and
its cellulose nitrate solution are weak.
The lead-block value of nitromethoxy methanol nitrate is 420 cm
3
. In the same
conditions, the value of glycol dinitrate is 450 cm
3
. Nitromethoxy methanol nitrate
has similar explosion property and low chemical stability. Its shock sensitivity is
high and the lead-block value is 440 cm
3
.
(2) Preparation method [
83
]
Nitromethoxy methanol nitrate can be prepared by nitration reaction of bis-
chloromethyl ether. Bis-chloromethyl ether can be obtained by the following
reaction between 40 % formaldehyde solution and hydrogen chloride gas:
Density: 1.50 (20
°
