Angeli's salt

Angeli's salt
Identifiers
CAS Number	13826-64-7 ;
3D model (JSmol)	Interactive image;
PubChem CID	10129945;
UNII	S8LUE47R4Z ;
	InChI InChI=1S/N2O3.2Na/c3-1-2(4)5;;/q;2*+1 Key: XDPWLJKQGUTUKZ-UHFFFAOYSA-N;
	SMILES N(=O)[N+](=O)[O-].[Na+].[Na+];
Properties
Chemical formula	N2Na2O3
Molar mass	121.991 g·mol−1
Appearance	white solid
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Angeli's salt, sodium trioxodinitrate, is the inorganic compound with the formula Na₂[N₂O₃]. It contains nitrogen in an unusual reduced state. It is a colorless, water-soluble solid, hence a salt. In research, this salt is used as a source of the metastable nitroxyl (HNO), which is a signalling molecule in nature. It is also known by the name sodium trioxodinitrate(II) monohydrate.

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