Urea perchlorate

Urea perchlorate
Identifiers
CAS Number	18727-07-6 ;
3D model (JSmol)	Interactive image;
ChemSpider	23078714;
PubChem CID	12201323;
CompTox Dashboard (EPA)	DTXSID70480219;
	InChI 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;
	SMILES C(=O)([NH3+])N.[O-]Cl(=O)(=O)=O;
Properties
Chemical formula	CO(NH2)2·HClO4
Molar mass	159.51 g/mol
Appearance	Crystals
Melting point	83 °C (181 °F; 356 K)
Solubility in water	Large solubility in water
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

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]

Synthesis

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

^ Liu, Jiping (2015). Liquid Explosives. Springer. p. 6. ISBN 9783662458464.
^ 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