이리듐 사염화물

Soluble in water, alcohol, and dilute hydrochloric acid.

Insoluble in water, acids, alkalies. /Iridium trichloride alpha-form/

When heated to decomposition it emits toxic fumes of /hydrogen chloride/.

Decomposes at 763 °C. /Iridium Trichloride alpha-form/

/The chloride of iridium(IV) ion most likely does not exist as IrCl4./ Iridium(IV) ion tends to be six-cooridinate with octahedral geometry.

Hygroscopic

Warning

H302 (100%): Harmful if swallowed [Warning Acute toxicity, oral]

P261, P264, P264+P265, P270, P271, P280, P301+P317, P302+P352, P304+P340, P305+P351+P338, P319, P321, P330, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement)

Aggregated GHS information provided per 6 reports by companies from 3 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

SRP: At the time of review, criteria for land treatment or burial (sanitary landfill) disposal practices are subject to significant revision. Prior to implementing land disposal of waste residue (including waste sludge), consult with environmental regulatory agencies for guidance on acceptable disposal practices.

/HUMAN EXPOSURE STUDIES/ The chlorides are poison or moderately toxic by ingestion and are eye and skin irritants. /Iridium chlorides/

/CASE REPORTS/ This paper presents the case of a non-smoking and non-atopic male, exposed to iridium chloride at work, who developed respiratory tract symptoms and contact urticaria. Application of iridium salt to normal skin caused contact urticaria. An iridium chloride prick test showed a positive reaction and a scratch test produced anaphylactoid reactions. Platinum salt allergy was excluded through prick testing with hexachloroplatinate solution. There is no previous report describing a case where an individual has a positive prick test reaction to iridium salts and simultaneously a negative one to platinum salts. The results are interpreted as immediate-type hypersensitivity (Type I allergy?) to iridium salt. The route of sensitization was probably through the airways. Further testing showed that iridium salt allergy could persist for at least 18 months after exposure ceases. 14 employees at the same factory were prick tested with iridium and platinum salts with negative results. /Chloride/

Used in chemical analysis (testing for nitric acid in the presence of nitrous acid), microscopy, and plating solutions; [HSDB]

Electroplating [Category: Plate]

Analysis (testing for nitric acid in the presence of nitrous acid), microscopy, plating solution.

Catalyst for chlorination and polymerization reactions. /Iridium trichloride/

Iridium chloride (IrCl4): ACTIVE

Hexachloroiridic(IV) acid (H2[IrCl6]) (CAS No. 16941-92-7) and ammonium hexachloroiridate(IV) ((NH4)2[IrCl6]) (CAS No. 16940-92-4) are two industrial important iridium(IV) chloride salts. Hexachloroiridic(IV) acid is by far the most important iridium compound. Ammonium hexachloroiridate(IV) is important in the separtation process of platinum group metals (ruthenium, osmium, rhodium, iridium, palladium and platinum). The best method for producing powder metal iridium is to reduce ammonium hexachloroiridate(IV) in an hydrogen atmosphere at 800 °C and strong heating in air gives an oxide material.