Dipotassium hexachloroiridate

Synonym(s):Iridium potassium chloride

CAS NO.：16920-56-2
Empirical Formula: Cl6IrK-
Molecular Weight: 444.02
MDL number: MFCD00011369
EINECS: 240-976-7
SAFETY DATA SHEET (SDS)
Update Date: 2023-04-23 13:52:06

Dipotassium hexachloroiridate Structural

What is Dipotassium hexachloroiridate?

Chemical properties

Black Crystalline Powder

The Uses of Dipotassium hexachloroiridate

Black pigment (porcelain decoration). The iridium (III) salt is also known: K3IrCl6, greenishyellow.

The Uses of Dipotassium hexachloroiridate

Iridium potassium chloride (K2IrCl6) is used as a black pigment to make black porcelain kitchen and bathroom fixtures.

The Uses of Dipotassium hexachloroiridate

Potassium Hexachloroiridate(IV) is a reagent with biocatalytic activity

Purification Methods

Crystallise it from hot aqueous solution containing a few drops of HNO3 to keep it in the oxidised state. It forms small shiny red-black octahedral crystals which are dried at 100o and give a red powder on grinding [Grube in Handbook of Preparative Inorganic Chemistry (Ed. Brauer) Academic Press Vol II pp 1593-1594 1965].

Properties of Dipotassium hexachloroiridate

Melting point:	>385 °C (lit.)
Density	3,546 g/cm³
form	Powder
color	black
Specific Gravity	3.546
Water Solubility	Insoluble in water.
Sensitive	Hygroscopic
Stability:	Stable. Incompatible with strong reducing agents.
CAS DataBase Reference	16920-56-2(CAS DataBase Reference)
EPA Substance Registry System	Iridate(2-), hexachloro-, dipotassium, (OC-6-11)- (16920-56-2)

Safety information for Dipotassium hexachloroiridate

Signal word	Warning
Pictogram(s)	Exclamation Mark Irritant GHS07
GHS Hazard Statements	H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation
Precautionary Statement Codes	P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P280:Wear protective gloves/protective clothing/eye protection/face protection. P301+P312:IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.