Tetraamminecopper(II) sulfate

Tetraamminecopper(II) sulfate monohydrate
Ball-and-stick model of the Tetramine copper(II) cation
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
3D model (JSmol)
ECHA InfoCard 100.155.305 Edit this at Wikidata
UNII
  • [OH2+][Cu-3]([NH3+])([NH3+])([NH3+])[NH3+].[O-][S+2]([O-])([O-])[O-]
Properties
[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)
18.5 g/(100 g) (21.5 °C)[1]
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Tetraamminecopper(II) sulfate
Tetraaminecopper(II) sulfate monohydrate milled
Tetraamminecopper(II) iodide
Analogous compound with different anion: tetraamminecopper(II) iodide monohydrate

Tetraamminecopper(II) sulfate monohydrate, or more precisely tetraammineaquacopper(II) sulfate, is the salt with the formula [Cu(NH3)4]SO4·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.

  1. ^ Cite error: The named reference Brauer was invoked but never defined (see the help page).