1,3-Dimethylimidazolium nitrate

1,3-Dimethylimidazolium nitrate ([DMIM][NO3]) is a solvent within the imidazole-based class of ionic liquids (ILs). 1,3-Dimethylimidazolium is a five-membered ring aromatic cation composed of two nitrogen atoms and three carbon atoms, with methyl groups substituted at positions 1 and 3 of the nitrogen atoms, respectively. The nitrate anion is a poly-ion species characterized by one nitrogen atom and three oxygen atoms.

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1,3-Dimethylimidazolium nitrate

Names
Preferred IUPAC name 1,3-Dimethyl-1H-imidazol-3-ium nitrate
Identifiers
CAS Number	941584-21-0 N[1]
3D model (JSmol)	Interactive image
ChemSpider	29322878
PubChem CID	86109826
InChI InChI=1S/C5H9N2.NO3/c1-6-3-4-7(2)5-6;2-1(3)4/h3-5H,1-2H3;/q+1;-1 Key: NNZONDWZDSZNGB-UHFFFAOYSA-N
SMILES CN1C=C[N+](=C1)C.[N+](=O)([O-])[O-]
Properties
Chemical formula	C5H9N3O3
Molar mass	159.145 g·mol−1
Melting point	60–62 Â°C (140–144 Â°F; 333–335 K)
Except where otherwise noted, data are given for materials in their standard state (at 25 Â°C [77 Â°F], 100 kPa). Infobox references

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Thermodynamic properties of this compound are not available as it exhibits fast and often uncontrollable chemical decomposition, only limited data such as its melting and decomposition temperatures.^[2] Differential scanning calorimetry and thermogravimetric analysis has been performed to understand thermal decomposition kinetics.^[3] Computational methods have been used to probe some of the interactions with water.^[4]