Rhodium(III) chloride

Rhodium(III) chloride

Trihydrate
Names
Other names Rhodium trichloride
Identifiers
CAS Number	10049-07-7 Y 13569-65-8 (trihydrate) N[ICSC]
3D model (JSmol)	Interactive image
ChemSpider	8096382 Y
ECHA InfoCard	100.030.138
EC Number	233-165-4
PubChem CID	24872
RTECS number	VI9290000
UNII	Q4D88MX3Z8 Y
CompTox Dashboard (EPA)	DTXSID5044497
InChI InChI=1S/3ClH.Rh/h3*1H;/q;;;+3/p-3 Y Key: SONJTKJMTWTJCT-UHFFFAOYSA-K Y InChI=1S/3ClH.Rh/h3*1H;/q;;;+3/p-3 Key: SONJTKJMTWTJCT-UHFFFAOYSA-K
SMILES [Rh+3].[Cl-].[Cl-].[Cl-]
Properties
Chemical formula	RhCl3
Molar mass	209.26 g/mol
Appearance	red-brown solid
Density	5.38 g/cm3
Solubility in water	insoluble
Solubility	soluble in hydroxide and cyanide solutions, also soluble in aqua regia
Magnetic susceptibility (χ)	−7.5·10−6 cm3/mol
Structure
Crystal structure	Monoclinic, mS16
Space group	C12/m1, No. 12
Coordination geometry	octahedral
Thermochemistry
Std enthalpy of formation (ΔfH⦵298)	−234 kJ/mol
Hazards
Flash point	Nonflammable
Lethal dose or concentration (LD, LC):
LD50 (median dose)	>500 mg/kg (rat, oral) 1302 mg/kg (rat, oral)[1]
Safety data sheet (SDS)	ICSC 0746
Related compounds
Other anions	Rhodium(III) fluoride Rhodium(III) bromide Rhodium(III) iodide
Other cations	Cobalt(II) chloride Iridium(III) chloride
Related compounds	Ruthenium(III) chloride Palladium(II) chloride
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). N verify (what is YN ?) Infobox references

Rhodium(III) chloride refers to inorganic compounds with the formula RhCl₃(H₂O)_n, where n varies from 0 to 3. These are diamagnetic red-brown solids. The soluble trihydrated (n = 3) salt is the usual compound of commerce. It is widely used to prepare compounds used in homogeneous catalysis.^[2]