Tetraamminecopper(II) sulfate

Tetraamminecopper(II) sulfate monohydrate
	Tetraamminecopper(II) sulfate monohydrate; Copper, Cu Oxygen, O Nitrogen, N Sulfur, S Hydrogen, H
	Tetraamminecopper(II) sulfate monohydrate crystals
Names
	IUPAC name Tetraammineaquacopper(II) sulfate
	Other names Cuprammonium(II) sulfate; Cuprammonium(II) sulfate monohydrate; Cupric sulfate, ammoniated; Tetraamminecopper(II) sulfate monohydrate;
Identifiers
CAS Number	14283-05-7 ;
3D model (JSmol)	Interactive image;
ChemSpider	55433;
ECHA InfoCard	100.155.305
EC Number	626-953-8;
PubChem CID	61513;
UNII	YMW7182547 ;
CompTox Dashboard (EPA)	DTXSID70908605 ;
	InChI InChI=1S/Cu.4H3N.H2O4S.H2O/c;;;;;1-5(2,3)4;/h;4*1H3;(H2,1,2,3,4);1H2/q+2;;;;;;/p-2 Key: ABAHXVHZPFQSDZ-UHFFFAOYSA-L;
	SMILES [OH2+][Cu-3]([NH3+])([NH3+])([NH3+])[NH3+].[O-][S+2]([O-])([O-])[O-];
Properties
Chemical formula	[Cu(NH3)4(H2O)]SO4
Molar mass	245.79 g/mol (monohydrate)
Appearance	dark blue-purple solution or crystals
Odor	Ammonia
Density	1.81 g/cm3
Boiling point	330 °C (626 °F; 603 K)
Solubility in water	18.5 g/(100 g) (21.5 °C)
Hazards
	GHS labelling:
Pictograms
Signal word	Warning
Hazard statements	H315, H319, H335
Precautionary statements	P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P403+P233, P405, P501
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Tetraamminecopper(II) sulfate monohydrate, or more precisely tetraammineaquacopper(II) sulfate, is the salt with the formula [Cu(N H₃)₄]S O₄·H₂O, or more precisely [Cu(NH₃)₄(H₂O)]SO₄. This dark blue to purple solid is a sulfuric acid salt of the metal complex [Cu(NH₃)₄(H₂O)]²⁺ (tetraammineaquacopper(II) cation). It is closely related to Schweizer's reagent, which is used for the production of cellulose fibers in the production of rayon.