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RDX

RDX (cyclotrimethylenetrinitramine) is a fine-crystalline white substance with neither taste nor odor, non-hygroscopic, insoluble in water (readily soluble in concentrated nitric acid, less soluble in acetone, poorly soluble in chloroform and alcohol). Phlegmatized RDX is usually tinted orange (by adding a small amount of Sudan dye) and pressed to a density of 1.66. Chemically, RDX is more stable than PETN. It does not chemically interact with metals. In its pure form, RDX is used only for filling detonator caps. Phlegmatized RDX (with the addition of paraffin, stearin, petroleum jelly, etc.) is used for filling certain special-purpose munitions.

Characteristics of RDX

Obtained
1897
Start of use
1919 (Germany)
Formula
C3H3O6N
Starting materials
hexamine, nitric acid
Structure
fine-crystalline substance
Color
white
Sensitivity
sensitivity higher than tetryl but lower than PETN; may detonate from a bullet impact; combustion may transition to detonation
Impact sensitivity
80-90%
Interaction with metals
does not interact with metals
Solubility in water
non-hygroscopic, insoluble
TNT equivalent
1.42
Ignition temperature
215-232 ºC
Melting point
202-203 ºC
Density
1700 kg/m³
Detonation velocity
8600 m/s
Specific energy of explosive transformation
5.8 MJ/kg
Explosive power
470 cm³
Brisance
18 mm
Specific volume of explosion products
0.9 m³/kg
Features
tasteless, odorless, burns with a white flame
Guaranteed storage life
20 years
RDX
RDX
RDX