CAS 10049-07-7 Rhodium chloride (HCID 24872)

Names & identifiers

Preferred name: Rhodium chloride
IUPAC: trichlororhodium
English name: Rhodium(III) Chloride
Molecular formula: Cl3Rh
Molecular weight: 209.26

Names & synonyms

RHODIUM TRICHLORIDERhodium chloridetrichlororhodiumRhodium(III) chloride (1:3)EINECS 233-165-4UNII-Q4D88MX3Z8Q4D88MX3Z8DTXSID5044497RefChem:179256DTXCID3024497Rhodium chloride (RhCl3)RHODIUM CHLORIDE [MI]

Show more names

RHODIUM(+3)CHLORIDERhodium ( Ⅲ) chloriderhodiumchloride(rhcl3)rhodium(3+) trichlorideRHODIUM CHLORIDE REAGENTrhodium(iii)chloride(1:3)

RHODIUM(3+) CHLORIDERhodium(III) chlorideRhCl3Rhodium (III) chlorideRhodium(III)chlorideRhodium(III) chloride, anhydrousrhodium(III) trichloride12648-57-6

Database identifiers

CAS: 10049-07-7
PubChem CID: 24872
DTXSID: DTXSID5044497
EC Number: 233-165-4

Properties

Computed structural properties

Topological polar surface area: 0 Å²
Hydrogen bond donors: 0
Hydrogen bond acceptors: 0
Rotatable bonds: 0
Heavy atoms: 4
Formal charge: 0
Complexity: 8

Experimental & physicochemical properties

Chemical ClassesMetals -> Metals, Inorganic Compounds

Physical DescriptionRed solid; Insoluble in water; [Merck Index] Red-brown hygroscopic solid with an acidic odor; [Alfa Aesar MSDS]

Physicochemical properties

Melting point: 450 °C · 450 °C
Boiling point: 717 °C · 717 °C (730 mmHg)
Density: 5.38 · 5.38
storage temp.: Inert atmosphere,Room Temperature
solubility: 2 O; · insoluble in H2O; soluble in alkaline solutions
form: Powder
color: Red-brown
Water Solubility: Insoluble in water. Soluble in hydroxide and cyanide solutions.
Sensitive: Hygroscopic
Crystal Structure: 3 type · AlCl3 type
crystal system: Monoclinic
Merck: 14 · 14,8188
Space group: 2 · C2/m
Lattice constant: a/nm
Symbol(GHS): 7 · GHS07
Signal word: Warning
Hazard statements: 302 · H302
Precautionary statements: 301 · P301+P312+P330
PPE: 95 · dust mask type N95 (US), Eyeshields, Gloves
Hazard Codes: Xn
Risk Statements: 22 · 22-41
Safety Statements: 36 · 36/39-26-24-24/25
WGK Germany: 3 · 3
RTECS: 9275000 · VI9275000
F: 21 · 21
TSCA: TSCA listed
HazardClass: 8 · 8
HS Code: 28439000 · 28439000
Storage Class: 11 · 11 - Combustible Solids
Hazard Classifications: 4 Oral · Acute Tox. 4 Oral
Toxicity: 50 in · LD50 in rats (mg/kg): 198 i.v. (Landolt)

Safety & regulation

GHS classification

GHS Classification · 5 items

This chemical does not meet GHS hazard criteria for 0.4% (1 of 232) of reports.

Danger

H290 (11.6%): May be corrosive to metals [Warning Corrosive to Metals]

P203, P234, P264, P264+P265, P270, P273, P280, P301+P317, P305+P354+P338, P317, P318, P330, P390, P391, P405, P406, and P501 (click each P-code to see the statement)

Aggregated GHS information provided per 232 reports by companies from 15 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Hazard information

Regulatory InformationChemical: Rhodium chloride (RhCl3)

Other Safety InformationIMAP assessments - Rhodium chloride (RhCl3): Environment tier I assessment

Hazards SummaryCauses somnolence, respiratory depression, and weight loss in intravenous lethal-dose studies of rabbits and rats; [RTECS] A skin and strong eye irritant; Harmful by ingestion; [Alfa Aesar MSDS] See Rhodium.

Hazard Classes and CategoriesMet. Corr. 1 (11.6%)

Toxicology

Adverse EffectsACGIH Carcinogen - Not Classifiable.

Safety data

F: 21
PPE: dust mask type N95 (US), Eyeshields, Gloves
wgk: 3
tsca: TSCA listed
rtecs: VI9275000
hs_code: 28439000
Toxicity: LD50 in rats (mg/kg): 198 i.v. (Landolt)
risk_code: 22-41
Signal word: Warning
Symbol(GHS): GHS07
hazard_code: Xn
safety_code: 36/39-26-24-24/25
hazard_class: 8
Storage Class: 11 - Combustible Solids
Hazard statements: H302
Hazard Classifications: Acute Tox. 4 Oral
Precautionary statements: P301+P312+P330

Chemistry & industry

Uses & manufacturing

General Manufacturing InformationRhodium chloride (RhCl3): ACTIVE

Applications · 2 items

DescriptionRhodium trichloride is a red-brown or black,odorless solid or liquid. Molecular weight = 209.26; 263.32(trihydrate); Boiling point = 775℃ (sublimes); Freezing/Melting point = 400-500℃(decomposition). HazardIdentification (based on NFPA-704 M Rating System):Health 3, Flammability 0, Reactivity 1. Insoluble in water.Rhodium trichloride trihydrate, RhCl3 - xH2O, is a deep-redcrystalline solid. Soluble in water.

UsesRhodium(III) Chloride is used in homogeneous catalysis, for example in the industrial prodcution of acetic acid. It is used to coat optic fibres and optical mirrors, and for crucibles, thermocouple elements and headlight reflectors. manufacture of rhodium trifluoride.

Preparation methods · 1 item

PreparationRhodium trichloride is prepared by heating rhodium with chlorine gas at 250°C:2Rh + 3Cl2 → 2RhCl3Also, the chloride salt may be obtained by treating the yellow hydrous oxide, Rh2O3.5H2O, with hydrochloric acid. The solution is carefully evaporated to form a dark red and water-soluble salt, rhodium trichloride tetrahydrate, RhCl3.4H2O. Heating the tetrahydrate in a stream of hydrogen chloride gas at 180°C forms the anhydrous salt, RhCl3.