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Merck

940615

Rhodium(III) chloride

anhydrous, 48.9 ± 3.0% Rh

Synonym(s):

RhCl3, Rhodium chloride, Trichlororhodium

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About This Item

Linear Formula:
RhCl3
CAS Number:
10049-07-7
Molecular Weight:
209.26
MDL number:
MFCD00011204
NACRES:
NA.21
Form:
solid

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InChI key

SONJTKJMTWTJCT-UHFFFAOYSA-K

InChI

1S/3ClH.Rh/h3*1H;/q;;;+3/p-3

SMILES string

Cl[Rh](Cl)Cl

form

solid

Quality Level

200

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Application

Rhodium(III)chloride, anhydrous is important for catalysis because water can interfere with the catalytic activity of the compound. The anhydrous form ensures the purity and effectiveness of the catalyst in various chemical reactions.
It can be used as
  • As a starting material for synthesizing 3D palladium-rhodium (PdRh) nanosheet assembly (NSA) catalysts using a seed-mediated growth method. The resulting open 3D structure significantly enhances electrocatalytic activity for the methanol oxidation reaction (MOR).[1]
  • As a precursor for the synthesis of Rhodium nanoparticles supported on phosphorus-doped carbon (Rh/PC) using the ball-milling method with sodium hypophosphite as the phosphorus source. This catalyst shows excellent conversion and high regioselectivity for the hydroformylation of styrene, outperforming phosphorus-free (Rh/C) and metal-free (PC) catalysts.[2]
  • To synthesis of heterogeneous Rh/COF (covalent organic framework) catalyst using melamine and Rhodium(III) chloride as a precursor. This catalyst enables the tandem selective transfer hydrogenation and monomethylation of nitro compounds with methanol.[3]

General description

Rhodium(III) chloride, anhydrous is a dark red to red-black crystalline solid. It is insoluble in water. Anhydrous Rhodium(III) chloride is prepared by reacting chlorine with rhodium sponge metal at 200–300 °C. At temperatures above 800 °C, the anhydrous chloride reverts to rhodium metal and chlorine.

pictograms

Exclamation mark
GHS07

signalword

Warning

hcodes

H302

Hazard Classifications

Acute Tox. 4 Oral

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

940615-5G: + 940615-VAR: + 940615-2G: + 940615-BULK:

jan

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Phosphorus-Doped Carbon-Supported Rh Nanoparticles for the Hydroformylation of Styrene with High Regioselectivity
Xingcong Zhang et al.
Industrial & Engineering Chemistry Research, 62(21), 8174-8180 (2023)
Facile Synthesis of a Novel Heterogeneous Rh/COF Catalyst and Its Application in Tandem Selective Transfer Hydrogenation and Monomethylation of Nitro Compounds with Methanol
Mingyue Zhang
Industrial & Engineering Chemistry Research, 61(2), 1066?1077-1066?1077 (2022)
Hongyuan Shang et al.
Journal of colloid and interface science, 556, 360-365 (2019-08-31)
Even though substantial attention has been focused on exploring promising palladium-based catalysts, the creation of electrocatalysts with simultaneous high activity and reduced cost for fuel cell reactions remains a challenge. Here, we report on the design and construction of a

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