Tetraethylammonium nitrate

Tetraethylammonium nitrate
Names
	IUPAC name Tetraethylazanium nitrate
	Other names Ethanaminium, N,N,N-triethyl-, nitrate (1:1); N,N,N-Triethylethanaminium nitrate; Ammonium, tetraethyl-, nitrate;
Identifiers
CAS Number	1941-26-0;
3D model (JSmol)	Interactive image;
ChemSpider	67316;
ECHA InfoCard	100.016.114
EC Number	217-725-5;
PubChem CID	74744;
UNII	8W6G3DV8T2;
CompTox Dashboard (EPA)	DTXSID3062075;
	InChI InChI=1S/C8H20N.NO3/c1-5-9(6-2,7-3)8-4;2-1(3)4/h5-8H2,1-4H3;/q+1;-1 Key: JTJKNAJRGLQKDZ-UHFFFAOYSA-N;
	SMILES [N+](CC)(CC)(CC)CC.[N+](=O)([O-])[O-];
Properties
Chemical formula	[(CH3CH2)4N]NO3
Molar mass	192.259 g·mol−1
Appearance	Colorless hygroscopic crystals
Density	1.1622 g/cm3
Melting point	280 °C (536 °F; 553 K) (decomposition)
Solubility in water	Soluble
Hazards
	GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H272, H315, H319, H335
Precautionary statements	P210, P220, P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P370+P378, P403+P233, P405, P501
Related compounds
Other anions	Tetraethylammonium fluoride; Tetraethylammonium chloride; Tetraethylammonium bromide; Tetraethylammonium iodide; Tetraethylammonium trichloride; Tetraethylammonium cyanide; Tetraethylammonium perchlorate; Tetraethylammonium tetrachloroferrate; Tetraethylammonium tetrachloronickelate;
Other cations	Tetramethylammonium nitrate;
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Tetraethylammonium nitrate is a chemical compound with the chemical formula [(CH₃CH₂)₄N]NO₃. It is a colorless crystalline solid. It is a quaternary ammonium salt. It consists of tetraethylammonium cations [(CH₃CH₂)₄N]⁺ and nitrate anions NO−3.

Synthesis

Tetraethylammonium nitrate can be synthesized by reaction between tetraethylammonium hydroxide and nitric acid (see synthesis of tetraethylammonium salts).

[(CH₃CH₂)₄N]OH + HNO₃ → [(CH₃CH₂)₄N]NO₃ + H₂O

Using tetraethylammonium nitrate as an electrolyte additive in ethylene carbonate solvent, the Li/Cu rechargeable batteries can stably run over 1000 hours. This battery has a high energy density.^[5]

1 2 3 PubChem. "Tetraethylammonium nitrate". pubchem.ncbi.nlm.nih.gov. Retrieved 21 April 2026.
1 2 Sigma-Aldrich. "Tetraethylammonium nitrate". www.sigmaaldrich.com. Retrieved 21 April 2026.
1 2 TCI. "Tetraethylammonium Nitrate". www.tcichemicals.com. Retrieved 21 April 2026.
↑ Chemical Book. "Tetraethylammonium nitrate(1941-26-0)". www.chemicalbook.com. Retrieved 21 April 2026.
↑ Guo, Zhijie; Song, Xiaosheng; Zhang, Qi; Zhan, Niannian; Hou, Zhichao; Gao, Qiaomeng; Liu, Zewen; Shen, Zhengyuan; Zhao, Yong (2022). "Cationic Size Effect Promoting Dissolution of Nitrate Anion in Ester Electrolyte for Lithium–Metal Batteries". ACS Energy Letters. 7 (2): 569–576. Bibcode:2022ACSEL...7..569G. doi:10.1021/acsenergylett.1c02495.