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208973

Sigma-Aldrich

Hydrogen hexachloroiridate(IV) hydrate

Synonym(s):

Dihydrogen hexachloroiridate(IV) hydrate, Hexachloroiridium(IV) acid hydrate, Hydrogen iridium hexachloride

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About This Item

Linear Formula:
H2Cl6Ir · xH2O
CAS Number:
110802-84-1
Molecular Weight:
406.95 (anhydrous basis)
MDL number:
MFCD00149906
UNSPSC Code:
12352302
PubChem Substance ID:
24852222
NACRES:
NA.23

form

(Powder or Crystals or Granules or Beads)

concentration

36.0-44.0% Ir (gravimetric)

mp

65 °C (lit.)

density

1.02 g/mL at 25 °C (lit.)

SMILES string

Cl[H].Cl[H].[H]O[H].Cl[Ir](Cl)(Cl)Cl

InChI

1S/6ClH.Ir.H2O/h6*1H;;1H2/q;;;;;;+4;/p-4

InChI key

YDVQBPXDKJKDME-UHFFFAOYSA-J

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General description

Hydrogen hexachloroiridate(IV) hydrate is black crystalline solid that is soluble in water. It is a coordination complex of iridium in the +4 oxidation state. It widely used as a precursor to prepare Ir based catalysts for various electrochemical applications.

Application

Hydrogen hexachloroiridate(IV) hydrate can be used:
  • To fabricate dimensionally stable electrodes for oxygen evolution reaction. It allows for the controlled deposition of iridium oxide, which is crucial for achieving stable and efficient electrodes for the OER.
  • As a precursor to prepare electroplating solution to modify ultra flexible neural electrodes. It helps to achieve high charge storage capacity and working stability.
  • As a Ir source to prepare Ir nanodendrite water splitting catalyst with large surface area and high electrochemical porosity.

Features and Benefits

Catalyzes the electrochemical synthesis of polyaniline on the surface of non-noble metal electrodes. Utilized in the formation of iridium-substituted Dawson- and Keggin-type polyoxometallates by refilling the vacant site of the lacunary precursors.

Pictograms

CorrosionExclamation mark
GHS05,GHS07

Signal Word

Danger

Hazard Statements

H290,H302,H314

Hazard Classifications

Acute Tox. 4 Oral - Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1C

Storage Class Code

8B - Non-combustible corrosive hazardous materials

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

JAN Code

208973-5G:
208973-250MG:
208973-BULK:
208973-1G:
208973-VAR:

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Kinetic insights into the effect of promoters on Co/Al2O3 for Fischer-Tropsch synthesis
Xiaoli Yang, et al.
Chemical Engineering Journal, 445, 136655-136655 (2022)

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