Copper Sulphate
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Copper(II) sulfate, also known as cupric sulfate, is the chemical compound with the chemical formula CuSO4. This salt exists as a series of compounds that differ in their degree of hydration. The anhydrous form is a pale green or gray-white powder, whereas the pentahydrate (CuSO4·5H2O),

 

 

Copper Sulphate
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Professional ServiceCopper(II) sulfateIdentifiersPropertiesStructureThermochemistryHazardsRelated compounds

Preferred IUPAC name[hide]Copper(II) sulfate[citation needed]
Systematic name[hide]Copper(2+) sulfate[1] (additive)
Other names[hide]Cupric sulfate[citation needed]
CAS number	7758-98-7 Y
PubChem	24462
ChemSpider	24834757 N
UNII	KUW2Q3U1VV Y
EC number	231-847-6
UN number	3077
KEGG	C18713 Y
MeSH	Copper+Sulfate
ChEBI	CHEBI:23414 Y
ChEMBL	CHEMBL604 Y
RTECS number	GL8800000
Gmelin Reference	8294
Jmol-3D images	Image 1 Image 2 Image 3 Image 4
[show]O=S1(=O)O[Cu]O1 o:s1(:o)O[Cu]O1 [Cu++].[O-][S++]([O-])([O-])[O-] [O--].[O--].[Cu++].[O-][S+4][O-]
[show]InChI=1S/Cu.H2O4S/c;1-5(2,3)4/h;(H2,1,2,3,4)/q+2;/p-2 Y Key: ARUVKPQLZAKDPS-UHFFFAOYSA-L Y InChI=1/Cu.H2O4S/c;1-5(2,3)4/h;(H2,1,2,3,4)/q+2;/p-2 Key: ARUVKPQLZAKDPS-NUQVWONBAI
Molecular formula	CuSO4
Molar mass	159.609 g mol-1
Exact mass	158.881330257 g mol-1
Appearance	Light, pale green, opaque crystals
Density	3.603 g cm-3
Melting point	650 °C, 923 K, 1202 °F (decomposes)
Solubility in water	Hydrates
Crystal structure	Orthorhombic[2]
Space group	Pnma, oP24
Lattice constant	a = 839 pm, b = 669 pm, c = 483 pm
Std enthalpy of formation ΔfHo298	−772.6--770.2 kJ mol-1
Standard molar entropy So298	108.8-109.6 J K-1 mol-1
MSDS	hazard.com
GHS pictograms
GHS signal word	WARNING
GHS hazard statements	H302, H315, H319, H410
GHS precautionary statements	P273, P305+351+338, P501
EU Index	029-004-00-0
EU classification	Xn N
R-phrases	R22, R36/38, R50/53
S-phrases	(S2), S22, S60, S61
NFPA 704	021
LD50	87 mg kg-1 (oral, mouse) 300 mg kg-1 (oral, rat) 470 mg kg-1 (oral, mammal)
Other cations	Nickel(II) sulfate Zinc sulfate
Infobox references