Title: Tetraamminecopper Sulfate
CAS Registry Number: 14283-05-7
Additional Names: Cuprammonium sulfate; ammonium cupric sulfate; cupric sulfate, ammoniated; Eau Celeste
Molecular Formula: CuH12N4O4S
Molecular Weight: 227.73
Percent Composition: Cu 27.90%, H 5.31%, N 24.60%, O 28.10%, S 14.08%
Line Formula: [Cu(NH3)4]SO4
Literature References: Prepd by dissolving copper sulfate in ammonia water and pptg with alcohol: Mazzi, Acta Crystallogr. 8, 137 (1955). Crystal structure of monohydrate: Morosin, ibid. 25B, 19 (1969).
Derivative Type: Monohydrate
Properties: Large, dark blue crystals. d420 1.81. Ammonia odor, dec in air. Loses H2O and 2NH3 on heating to 120°, remaining 2NH3 at 160°. Soly in water at 21.5°: 18.5 g/100 ml. Practically insol in the lower alcohols.
Density: d420 1.81
Use: In textile printing, especially in calico finishing. As fungicide. |