Guanidine nitrate

Guanidine nitrate

Names
IUPAC name Guanidinium nitrate
Identifiers
CAS Number	506-93-4 Y
3D model (JSmol)	Interactive image
ChemSpider	10049 Y
ECHA InfoCard	100.007.328
EC Number	208-060-1
PubChem CID	10481
InChI InChI=1S/CH5N3.HNO3/c2*2-1(3)4/h(H5,2,3,4);(H,2,3,4) Y Key: CNUNWZZSUJPAHX-UHFFFAOYSA-N Y InChI=1/CH5N3.HNO3/c2*2-1(3)4/h(H5,2,3,4);(H,2,3,4) Key: CNUNWZZSUJPAHX-UHFFFAOYAZ
SMILES [O-][N+](=O)O.[N@H]=C(N)N
Properties
Chemical formula	CH6N4O3
Molar mass	122.1
Appearance	White solid
Density	1.436 g/cm3
Melting point	213 °C (415 °F; 486 K)
Boiling point	Decomposes below boiling point
Solubility in water	160 g/l at 20 °C
Hazards
Safety data sheet	MSDS
EU classification (DSD) (outdated)	O
R-phrases (outdated)	R20 R21 R22 R36 R38
NFPA 704	1 2 4
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Y  (what is YN ?)
Infobox references

Guanidine nitrate is the chemical compound with the formula [C(NH₂)₃]NO₃. It is a colorless, water-soluble salt. It is produced on a large scale as high energy fuel used as gas generator and solid rocket propellant applications. Its more official name is guanidinium nitrate, but the incorrect term guanidine nitrate is widely used.

Although it is the salt formed by neutralizing guanidine with nitric acid, guanidine nitrate is produced industrially by the reaction of dicyandiamide (or calcium salt) and ammonium nitrate.

It has been used as a monopropellant in the Jetex engine for model airplanes. It is attractive because it has a high gas output and low flame temperature. It has a relatively high monopropellant specific impulse of 177 seconds (1.7 kN·s/kg).

Guanidine nitrate's explosive decomposition is given by the following equation: H₆N₄CO_{3 (s)} = 3 H₂O _(g) + 2 N_{2 (g)} + C _(s)

The compound is hazardous substance, being an explosive and containing an oxidant (nitrate). It is also harmful to the eyes, skin, and inhalation.