Iridium(III) chloride

Iridium(III) chloride

Chembox new
Name = Iridium(III) chloride
ImageFile = Iridium(III) chloride.jpg
ImageName = Iridium(III) chloride
OtherNames = Iridium trichloride
Name = Safety data
Section1 = Chembox Identifiers
CASNo = 10025-83-9
EINECS = 233-044-6
RTECS =

Section2 = Chembox Properties
Formula = IrCl3
MolarMass = 298.58 g/mol ("anhydrous")
Appearance = dark green solid
hygroscopic
Density = 5.30 g/cm3, solid
Solubility = soluble
MeltingPt = 763 °C ("decomp.")

Section3 = Chembox Structure
Coordination =
CrystalStruct =

Section4 = Chembox Thermochemistry
DeltaHf = -257 kJ/mol

Section7 = Chembox Hazards
EUClass = not listed
FlashPt = non-flammable

Section8 = Chembox Related
OtherAnions = Iridium(III) fluoride
Iridium(III) bromide
Iridium(III) iodide
OtherCations = Iridium(II) chloride
Iridium(IV) chloride
Rhodium(III) chloride
OtherCpds = Osmium(III) chloride
Platinum(II) chloride

Iridium(III) chloride is the chemical compound with the formula IrCl3. This salt and the related hydrate are the principal starting materials for most iridium chemistry. The anhydrous salt is a dark green crystalline solid, which is very hygroscopic. It is usually encountered as a non-stoïchiometric hydrate CAS number [14996-61-3] ) which has a highly variable water content.

Preparation

Iridium is separated from the other platinum group metals as crystalline ammonium hexachloroiridate(IV), [NH4] 2 [IrCl6] (CAS number [16940-92-4] ), which can be reduced to iridium metal in a stream of hydrogen. The spongy metal produced is reacted with chlorine at 300-400°C to produce iridium(III) chloride.

Uses

Iridium(III) chloride is used as a starting material for the preparation of other iridium compounds. Vaska's complex, "trans"- [IrCl(CO)(PPh3)2] , is prepared by refluxing IrCl3 in dimethylformamide with excess triphenylphosphine. [Vaska, L.; & DiLuzio, J. W. (1961) "J. Am. Chem. Soc." 83:2784. Girolami, G.S.; Rauchfuss, T.B.; Angelici, R.J. (1999). "Synthesis and Technique in Inorganic Chemistry (3rd Edn.)". Sausalito:University Science Books.] Alkene complexes such as the dimeric {Ir(COD)Cl}2Winkhaus, G.; & Singer, H. (1966). Iridium(I)-Olefinkomplexe. "Chem. Ber." 99:3610–18.] ,Herde, J. L.; Lambert, J. C.; & Senoff, C. V. (1974). Cyclooctene and 1,5-Cyclooctadiene Complexes of Iridium(I). "Inorg. Synth." 15:18–20.] and {Ir(cycloctene)2Cl}2 can also be prepared by refluxing IrCl3 with the appropriate alkene in water/alcohol mixtures.

afety

Iridium(III) chloride is not listed under Annex I of Directive 67/548/EEC, but is usually classified as irritant, R36/37/38: "Irritating to eyes, respiratory system and skin". It is listed in the inventory of the Toxic Substances Control Act (TSCA).

Bibliography

*

References


Wikimedia Foundation. 2010.

Игры ⚽ Нужна курсовая?

Look at other dictionaries:

  • iridium(III) chloride — iridžio(III) chloridas statusas T sritis chemija formulė IrCl₃ atitikmenys: angl. iridium trichloride; iridium(III) chloride rus. иридий треххлористый; иридия(III) хлорид ryšiai: sinonimas – iridžio trichloridas …   Chemijos terminų aiškinamasis žodynas

  • Iridium(III)-chlorid — Kristallstruktur Ir3+      …   Deutsch Wikipedia

  • Rhodium(III) chloride — Rhodium(III) chloride …   Wikipedia

  • iridium trichloride — iridžio(III) chloridas statusas T sritis chemija formulė IrCl₃ atitikmenys: angl. iridium trichloride; iridium(III) chloride rus. иридий треххлористый; иридия(III) хлорид ryšiai: sinonimas – iridžio trichloridas …   Chemijos terminų aiškinamasis žodynas

  • Iridium (Chemisches Element) — Eigenschaften …   Deutsch Wikipedia

  • Cobalt(II) chloride — Anhydrous Hexahydrate …   Wikipedia

  • iridžio(III) chloridas — statusas T sritis chemija formulė IrCl₃ atitikmenys: angl. iridium trichloride; iridium(III) chloride rus. иридий треххлористый; иридия(III) хлорид ryšiai: sinonimas – iridžio trichloridas …   Chemijos terminų aiškinamasis žodynas

  • иридия(III) хлорид — iridžio(III) chloridas statusas T sritis chemija formulė IrCl₃ atitikmenys: angl. iridium trichloride; iridium(III) chloride rus. иридий треххлористый; иридия(III) хлорид ryšiai: sinonimas – iridžio trichloridas …   Chemijos terminų aiškinamasis žodynas

  • Pentamethylcyclopentadienyl iridium dichloride dimer — IUPAC name Di µ chloro bis[chloro(pentamethylcyclopentadienyl)iridium(III)] …   Wikipedia

  • Chlorure de rhodium (III) — Trichlorure de rhodium Trichlorure de rhodium (III) Général Nom IUPAC Trichlorure de rhodium (III) Synonymes Chlorure de rhodium (III) No CAS …   Wikipédia en Français

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”