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204218

Sigma-Aldrich

Rhodium

powder, 99.95% trace metals basis

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Empirical Formula (Hill Notation):
Rh
CAS Number:
7440-16-6
Molecular Weight:
102.91
EC Number:
231-125-0
MDL number:
MFCD00011201
PubChem Substance ID:
24852239
NACRES:
NA.23

Quality Level

100

Assay

99.95% trace metals basis

form

powder

resistivity

4.33 μΩ-cm, 20°C

bp

3727 °C (lit.)

mp

1966 °C (lit.)

density

12.41 g/cm3 (lit.)

SMILES string

[Rh]

InChI

1S/Rh

InChI key

MHOVAHRLVXNVSD-UHFFFAOYSA-N

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This Item
GF91583264GF14938005GF94930667
Rhodium powder, 99.95% trace metals basis

Sigma-Aldrich

204218

Rhodium

Rhodium microfoil, disks, 25mm, thinness 0.25μm, specific density 310μg/cm2, permanent mylar 3.5μm support, 99.99%

GF91583264

Rhodium

Rhodium microfoil, disks, 25mm, thinness 0.1μm, specific density 124μg/cm2, permanent mylar 3.5μm support, 99.9%

GF14938005

Rhodium

Rhodium microfoil, disks, 10mm, thinness 0.25μm, specific density 310μg/cm2, permanent mylar 3.5μm support, 99.99%

GF94930667

Rhodium

form

powder

form

-

form

foil

form

-

resistivity

4.33 μΩ-cm, 20°C

resistivity

4.33 μΩ-cm, 20°C

resistivity

4.33 μΩ-cm, 20°C

resistivity

4.33 μΩ-cm, 20°C

bp

3727 °C (lit.)

bp

3727 °C (lit.)

bp

3727 °C (lit.)

bp

3727 °C (lit.)

mp

1966 °C (lit.)

mp

1966 °C (lit.)

mp

1966 °C (lit.)

mp

1966 °C (lit.)

density

12.41 g/cm3 (lit.)

density

12.41 g/cm3 (lit.)

density

12.41 g/cm3 (lit.)

density

12.41 g/cm3 (lit.)

Application

Rhodium can be used in the following applications:
  • Rh supported on activated carbon (Rh/C) can be used as an efficient oxygen reduction reaction catalyst for the fabrication of microbial fuel cells.
  • Used as a catalyst in the hydrosilylation of aromatic nitriles to N, N-disilylamines.
  • Used to prepare Rhodium-Iridium alloy.

Storage Class Code

4.1B - Flammable solid hazardous materials

WGK

nwg

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Simon Duttwyler et al.
Science (New York, N.Y.), 339(6120), 678-682 (2013-02-09)
Piperidines are prevalent in natural products and pharmaceutical agents and are important synthetic targets for drug discovery and development. We report on a methodology that provides highly substituted piperidine derivatives with regiochemistry selectively tunable by varying the strength of acid
Stepan Chuprakov et al.
Journal of the American Chemical Society, 135(12), 4652-4655 (2013-03-13)
Readily available 1-mesyl-1,2,3-triazoles are efficiently converted into a variety of imidazolones and thiazoles by Rh(II)-catalyzed denitrogenative reactions with isocyanates and isothiocyanates, respectively. The proposed triazole-diazoimine equilibrium results in the formation of highly reactive azavinyl metal-carbenes, which react with heterocumulenes causing
Gavin Chit Tsui et al.
Organic letters, 15(5), 1064-1067 (2013-02-12)
A method for synthesizing chiral oxazolidinone scaffolds from readily available oxabicyclic alkenes is described. The reaction utilizes a domino sequence of Rh(I)-catalyzed asymmetric ring-opening (ARO) with sodium cyanate as a novel nucleophile followed by intramolecular cyclization to generate oxazolidinone products
Juliane Keilitz et al.
Organic letters, 15(5), 1148-1151 (2013-02-21)
A new enantioselective rhodium-catalyzed domino reaction is described that gives access to fused heterocycles by desymmetrization of alkyne-tethered cyclohexadienones. Two new C-C bonds and two stereocenters are formed in one step with good enantioselectivity. In contrast to prior reports, it
Xian-Ying Shi et al.
Organic letters, 15(7), 1476-1479 (2013-03-09)
A novel rhodium(III)-catalyzed direct functionalization of the ortho-C-H bond of aromatic ketone derivatives and an intramolecular cyclization sequence produced indene derivatives in moderate to good yields. This cascade cyclization involves a conjugate addition of α,β-unsaturated ketone and subsequent aldol condensation.
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