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Chromium(III) perchlorate

From Wikipedia, the free encyclopedia
Chromium(III) perchlorate
Names
Other names
Chromium(III) perchlorate; Chromium triperchlorate
Identifiers
3D model (JSmol)
ChemSpider
EC Number
  • 236-905-4
  • InChI=1S/3ClHO4.Cr/c3*2-1(3,4)5;/h3*(H,2,3,4,5);/q;;;+3/p-3
    Key: ZKJMJQVGBCLHFL-UHFFFAOYSA-K
  • hexahydrate: InChI=1S/3ClHO4.Cr.6H2O/c3*2-1(3,4)5;;;;;;;/h3*(H,2,3,4,5);;6*1H2/q;;;+3;;;;;;/p-3
    Key: AWECJTDFTJYSGZ-UHFFFAOYSA-K
  • [O-]Cl(=O)(=O)=O.[O-]Cl(=O)(=O)=O.[O-]Cl(=O)(=O)=O.[Cr+3]
  • hexahydrate: O.O.O.O.O.O.[O-]Cl(=O)(=O)=O.[O-]Cl(=O)(=O)=O.[O-]Cl(=O)(=O)=O.[Cr+3]
Properties
Cr(ClO4)3
Molar mass350.3489
Appearancecyan solid
anhydrous: 58 g/100 mL (25 °C)
hexahydrate: 130 g/100 mL (20 °C)[1]
Solubilitysoluble inethanol
Hazards
Occupational safety and health (OHS/OSH):
Main hazards
poisonous
GHS labelling:[2]
GHS05: CorrosiveGHS08: Health hazard
Danger
H271,H315,H319,H335
Related compounds
Related compounds
chromium(III) chloride
chromium chlorate
Except where otherwise noted, data are given for materials in theirstandard state (at 25 °C [77 °F], 100 kPa).
Chemical compound

Chromium(III) perchlorate is aninorganic compound, a salt with the chemical formula Cr(ClO4)3. It's hexahydrate Cr(ClO4)3·6H2O is a cyan solid that dissolves in water.

Preparation

[edit]

Chromium perchlorate can prepared by reactingchromium(III) oxide orchromium(III) hydroxide withperchloric acid:

Cr2O3 + 6HClO4 → 2Cr(ClO4)3 + 3H2O

Hydrates

[edit]

Chromium perchlorate has many hydrates, such as the hexahydrate Cr(ClO4)3·6H2O[1] and a nonahydrate Cr(ClO4)3·9H2O.[3] All of them are cyan substances that are soluble in water.

Related compounds

[edit]
  • Cr(ClO4)3 will react withNH3 in suitable conditions to form an orange hexammine complex Cr(ClO4)3·6NH3.[4] Other compounds with the general formula Cr(ClO4)3(NH3)x are also known. When x = 3, this compound is red, when x = 4 or 5, it is orange.[5] The hexammine complex will explode.[5]
  • Cr(ClO4)3 can also form complexes withN2H4, such as purple Cr(ClO4)3·2N2H4.[6]
  • Cr(ClO4)3 can also form complexes withurea (CO(NH2)2), such as Cr(ClO4)3·6CO(NH2)2 with a hexagonal structure.[7]

References

[edit]
  1. ^abWilliam M. Haynes, ed. (2016).CRC Handbook of Chemistry and Physics (97 ed.). CRC Press. pp. 4–57.ISBN 9781498754293.
  2. ^Elements, American."Chromium Perchlorate Hexahydrate".American Elements. Retrieved11 December 2021.
  3. ^Chromium Perchlorate
  4. ^Handbook of inorganic substances 2017 – Google Sách.
  5. ^abMacintyre, Jane E. (23 July 1992).Dictionary of Inorganic Compounds. CRC Press. p. 3278.ISBN 978-0-412-30120-9.
  6. ^chemistry-chemists.comhttps://web.archive.org/web/20200326015850/http://chemistry-chemists.com/chemister/Neorganika/inorganic-hydrazine-derivatives-2014.pdf. Archived fromthe original on 2020-03-26.{{cite web}}:Missing or empty|title= (help)
  7. ^Barbieri, G. A. (17 September 1913)."Über Eisen-Harnstoffverbindungen"(PDF).Chemisches Zentralblatt (12): 1035.
Chromium(0)
Organochromium(0) compounds
Chromium(I)
Organochromium(I) compounds
Chromium(II)
Organochromium(II) compounds
Chromium(II, III)
Chromium(III)
Chromium(IV)
Chromium(V)
Chromium(VI)
Polyatomic ion
Salts and covalent derivatives of theperchlorate ion
HClO4He
LiClO4Be(ClO4)2B(ClO4)−4
B(ClO4)3		ROClO3N(ClO4)3
NH4ClO4
NOClO4
NO2ClO4		H3OClO4FClO4Ne
NaClO4Mg(ClO4)2Al(ClO4)3
Al(ClO4)−4
Al(ClO4)2−5
Al(ClO4)3−6		SiPSClO−4
ClOClO3
Cl2O7		Ar
KClO4Ca(ClO4)2Sc(ClO4)3Ti(ClO4)4VO(ClO4)3
VO2(ClO4)		Cr(ClO4)3Mn(ClO4)2Fe(ClO4)2
Fe(ClO4)3		Co(ClO4)2
Co(ClO4)3		Ni(ClO4)2Cu(ClO4)2Zn(ClO4)2Ga(ClO4)3GeAsSeBrOClO3Kr
RbClO4Sr(ClO4)2Y(ClO4)3Zr(ClO4)4Nb(ClO4)5MoO2(ClO4)2TcRuRh(ClO4)3Pd(ClO4)2AgClO4Cd(ClO4)2In(ClO4)3Sn(ClO4)4Sb(ClO4)3TeO(ClO4)2I(OClO3)3Xe(OClO3)2
CsClO4Ba(ClO4)2*Lu(ClO4)3Hf(ClO4)4Ta(ClO4)5
TaO(ClO4)3
TaO2ClO4		WO(ClO4)4ReO3ClO4OsIrPtAu(ClO4)−4Hg2(ClO4)2
Hg(ClO4)2		Tl(ClO4)
Tl(ClO4)3		Pb(ClO4)2Bi(ClO4)3PoAtRn
FrClO4Ra**LrRfDbSgBhHsMtDsRgCnNhFlMcLvTsOg
 
*La(ClO4)3Ce(ClO4)xPr(ClO4)3Nd(ClO4)3PmSm(ClO4)3Eu(ClO4)3Gd(ClO4)3Tb(ClO4)3Dy(ClO4)3Ho(ClO4)3Er(ClO4)3Tm(ClO4)3Yb(ClO4)3
**AcTh(ClO4)4PaUO2(ClO4)2NpO2ClO4
NpO2(ClO4)2		PuO2(ClO4)2Am(ClO4)3Cm(ClO4)3BkCfEsFmMdNo
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