Copper (I) sulfate

Structural formula
General
Surname	Copper (I) sulfate
other names	Dicopper sulfate
Molecular formula	Cu 2 SO 4
Brief description	white or off-white solid
External identifiers / databases
CAS number 17599-81-4 EC number 631-506-5 ECHA InfoCard 100.159.746 PubChem 134737 Wikidata Q1074884
properties
Molar mass	223.14 g mol −1
Physical state	firmly
density	3.605 g cm −3
safety instructions
GHS hazard labeling no classification available
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Copper (I) sulfate is an inorganic chemical compound of copper from the group of sulfates .

Extraction and presentation

Copper (I) sulfate can be obtained by reacting copper with sulfuric acid at 200 ° C.

${\displaystyle \mathrm {2\ Cu+2\ H_{2}SO_{4}\longrightarrow Cu_{2}SO_{4}+2\ H_{2}O+SO_{2}} }$

Copper (I) sulfate can be obtained in high purity by reacting copper (I) oxide with dimethyl sulfate at 160 ° C under argon .

${\displaystyle \mathrm {Cu_{2}O+(CH_{3})_{2}SO_{4}\longrightarrow Cu_{2}SO_{4}+(CH_{3})_{2}O} }$

properties

Copper (I) sulfate is a crystalline almost white or off-white solid. With water it decomposes to copper sulfate and copper. He is resistant to dry air. Decomposition occurs slowly in moist air. It is easily decomposed when heated, with oxidation to copper (II) oxide and copper sulphate at 200 ° C. It has an orthorhombic crystal structure with the space group Fddd (space group no. 70) .

Individual evidence

1. ↑ ^{a b c d e} Georg Brauer , with the collaboration of Marianne Baudler u. a. (Ed.): Handbook of Preparative Inorganic Chemistry . 3rd, revised edition. tape I . Ferdinand Enke, Stuttgart 1975, ISBN 3-432-02328-6 , pp. 984 .
2. ↑ This substance has either not yet been classified with regard to its hazardousness or a reliable and citable source has not yet been found.
3. ↑ HJ Berthold, J. Born: About copper (I) sulfate Cu ₂ SO ₄ . Appearance and thermal properties. In: Journal of Inorganic and General Chemistry. 550, 1987, pp. 7-15, doi : 10.1002 / zaac.19875500702 .
4. ^ HJ Berthold, J. Born, and R. Wartchow (1988). The crystal structure of copper (I) sulfate Cu ₂ SO ₄ The first structure of a simple cuprous oxo-salt. Journal of Crystallography - Crystalline Materials: Vol. 183, No. 1-4, pp. 309-318.