16940-92-4 Usage
Description
Ammonium hexachloroiridate(IV), also known as (NH4)2[IrCl6], is a chemical compound that serves as a key intermediate in the isolation of iridium from ores. It is characterized by its resistance to ligand substitution and can be converted to the metal iridium upon heating under hydrogen.
Uses
Used in Research Applications:
Ammonium hexachloroiridate(IV) is used as a reagent for various research applications, particularly in the field of chemistry and materials science. It plays a crucial role in the study and development of new compounds and materials.
Used in Catalytic Production of Hydrogen:
Ammonium hexachloroiridate(IV) is used as a catalyst in the production of hydrogen. The compound facilitates the conversion of hydrogen gas, making it an essential component in hydrogen generation processes.
Used in Iridium Isolation:
Ammonium hexachloroiridate(IV) is used as a key intermediate in the isolation of iridium from its ores. The compound's unique properties allow for the efficient extraction and purification of iridium, which is an important metal used in various industries.
Used in Iridium Complex Generation:
Ammonium hexachloroiridate(IV) is used in the generation of iridium complexes. These complexes have a wide range of applications, including in the fields of catalysis, electronics, and pharmaceuticals, due to their unique chemical and physical properties.
Flammability and Explosibility
Nonflammable
Purification Methods
It is precipitated several times from aqueous solution by saturation with ammonium chloride. This removes any palladium and rhodium. It is then washed with ice-cold water and dried over conc H2SO4 in a vacuum desiccator. If osmium or ruthenium is present, it can be removed as the tetroxide by heating with conc HNO3, followed by conc HClO4, until most of the acid has been driven off. (This treatment is repeated. ) The near-dry residue is dissolved in a small amount of water and added to excess NaHCO3 solution and bromine water. On boiling, iridic (but not platinic) hydroxide is precipitated. It is dissolved in HCl and precipitated several times, then dissolved in HBr and treated with HNO3 and HCl to convert the bromides to chlorides. Saturation with ammonium chloride and cooling precipitates ammonium hexachloroiridate which is filtered off and purified as above [Woo & Yost J Am Chem Soc 53 884 1931].
Check Digit Verification of cas no
The CAS Registry Mumber 16940-92-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,6,9,4 and 0 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 16940-92:
(7*1)+(6*6)+(5*9)+(4*4)+(3*0)+(2*9)+(1*2)=124
124 % 10 = 4
So 16940-92-4 is a valid CAS Registry Number.
InChI:InChI=1/6ClH.Ir.2H3N/h6*1H;;2*1H3/q;;;;;;+4;;/p-4/rCl6Ir.2H3N/c1-7(2,3,4,5)6;;/h;2*1H3/q-2;;/p+2
