Environmental Engineering Reference
In-Depth Information
(3) Application of acetyl glycerine dinitrate
Acetyl glycerine dinitrate is usually mixed with nitroglycerine with a ratio of
80:20 to be a liquid explosive mixture. The explosion strength of this liquid
explosive mixture is about 90 % of nitroglycerine.
5.4 Property and Preparation of Trinitrate Esters
5.4.1 Property and Preparation of Nitroglycerine [
1
,
84
87
]
-
Nitroglycerine with code of NG, also called glycerine trinitrate or propanetriol
trinitrate, is the most widely used liquid explosive with strong explosion strength.
5.4.1.1 Properties of Nitroglycerine
Molecular formula: C
3
H
7
N
3
O
9
Chemical structure:
ONO
2
CH
2
CH
ONO
2
ONO
2
Molecular weight: 229.10
Oxygen balance: 3.5 % (CO
2
-based)
Nitrogen content: 18.34 %
Nitroglycerine is a colorless transparent oily liquid. The industrial products are
usually light yellow or light brown, based on the purity of raw materials and
production conditions. A sweetish odor can be smelled when heated at 50
CH
2
°
C. It
tastes bittersweet and hot.
(1) Physical properties of nitroglycerine [
67
,
75
]
cations with different freezing points and crys-
talline forms. For the crystalline structure, the molten phase at low temperature is
not stable. It can be spontaneously converted to the stable phase with high melting
point. The freezing points of nitroglycerine obtained in different references are
summarized in Table
5.27
.
Crystal line speed of stable nitroglycerine phase formed at different temperature
is listed in Table
5.28
.
Nitroglycerine is slightly soluble in water. The solubility of nitroglycerine in
water is shown in Table
5.29
.
The solubility of nitroglycerine in sodium carbonate aqueous solution (1
Nitroglycerine has two modi
10 %)
is smaller than that in water. In 1,000 mL 8 % sodium carbonate aqueous solution,
-
