Ultrafine CL-20/TNT Cocrystal

Reduced Mechanical Sensitivity

CL-20/TNT cocrystal explosive with ~10 μm particle size, prepared rapidly via opposite spray crystallization, shows significantly reduced impact and friction sensitivity, with a safe and easily controlled process.

Yuan, Junming · Han, Tao · Wang, Jing

International Journal of Molecular Sciences 2024

Specifications

Particle size

{'zh': '10', 'en': '10'} μm

Advantages

Particles as small as ~10 μm

Rapid mixing and co-precipitation in the opposite spray process yield uniform ultrafine particles with an average size of ~10 μm.

Impact sensitivity greatly reduced

The ultrafine cocrystal structure improves intermolecular interactions, making initiation under drop-weight impact much harder and improving safety.

Simple and safe process

The opposite spray method uses simple equipment, acetone as solvent, and operates at 30 °C under ambient pressure, avoiding complex conditions.

Applications

• High-energy insensitive explosives：Directly used in explosive formulations to reduce accidental initiation risk.
• Energetic material characterization：Characterize cocrystal structure to validate the spray preparation.