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
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. |
Computed Descriptors for Dipotassium hexachloroiridate
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