Urea perchlorate is a sheet-shaped crystallite with good chemical stability and strong hygroscopicity. It has usage as an oxidizer in liquid explosives[1] including underwater blasting.[2]

Urea perchlorate
Identifiers
3D model (JSmol)
ChemSpider
  • InChI=1S/CH4N2O.ClHO4/c2-1(3)4;2-1(3,4)5/h(H4,2,3,4);(H,2,3,4,5)
    Key: CLXPQCKVAYIJQB-UHFFFAOYSA-N
  • InChI=1/CH4N2O.ClHO4/c2-1(3)4;2-1(3,4)5/h(H4,2,3,4);(H,2,3,4,5)
    Key: CLXPQCKVAYIJQB-UHFFFAOYAD
  • C(=O)([NH3+])N.[O-]Cl(=O)(=O)=O
Properties
CO(NH2)2·HClO4
Molar mass 159.51 g/mol
Appearance Crystals
Melting point 83 °C (181 °F; 356 K)
Large solubility in water
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Synthesis

edit

The compound is synthesized by gradual addition of urea into a perchloric acid solution:

CO(NH2)2 + HClO4 → CO(NH2)2·HClO4

An alternative route is addition of urea to hydrochloric acid solution, followed by addition of sodium perchlorate, and filtration of the salt.

NaClO4·H2O + CO(NH2)2 + HCl → CO(NH2)2·HClO4 + NaCl + H2O

References

edit
  1. ^ Liu, Jiping (2015). Liquid Explosives. Springer. p. 6. ISBN 9783662458464.
  2. ^ US 3952655, Kusakabe, Masao; Fuziwara, Shuzo & Shiino, Kazuo, "Underwater blasting method and explosives and devices used therein", published 1976-04-27, assigned to Director-General of Agency of Industrial Science and Technology