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Merck
CN

935514

Rhodium(III) sulfate

greener alternative

anhydrous, powder, ≥99.9% trace metals basis

Synonym(s):

Rhodium Sulfate, Rhodium trisulfate, Rhodium(III) sulfate

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About This Item

Empirical Formula (Hill Notation):
O12Rh2S3
CAS Number:
10489-46-0
Molecular Weight:
494.00
UNSPSC Code:
12352302
NACRES:
NA.22

Key Documents

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InChI

1S/H2O4S.Rh/c1-5(2,3)4;/h(H2,1,2,3,4);

InChI key

NZVSOIFAVIORHD-UHFFFAOYSA-N

SMILES string

[Rh].O=S(=O)(O)O

grade

anhydrous

assay

≥99.9% trace metals basis, 40.2-43.01% rhodium (Rh) basis (gravimetric)

form

powder

greener alternative product characteristics

Catalysis
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impurities

≤1000 ppm trace metals

color

beige-brown to very dark brown

solubility

water: very soluble(lit.)

density

1.217 g/cm3

greener alternative category

Aligned

storage temp.

2-8°C

Quality Level

100

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General description

Anhydrous rhodium(III)sulfate is a reddish yellow crystalline solid. At 400°C, rhodium metal and sulfuric acid are used to produce the anhydrous form.
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Application

Rhodium(III)sulfate is a plating reagent and noble metal additive. It is used as a reducing agent in metal surface analysis and as an oxidation catalyst in organic reactions.Furthermore, because of its potential for usage in fuel cells, Rhodium(III)sulfate is added to Platinum electrocatalyst to form Pt/Rh alloy in the research of ethanol oxidation. It demonstrates the ability to break the C-C bond and promotes the breaking of the C-H bond.

Rhodium(III)sulfate is also used with Platinum to form Pt/Rh alloy for highly corrosion resistant coatings on a metal substrate stainless steel (SS304). The alloy of Pt/Rh has been also used study the MB dye degaradtion using photocatalysis method.

pictograms

Exclamation mark
GHS07

signalword

Warning

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

target_organs

Respiratory system

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

Regulatory Information

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In situ FTIR spectroscopic study of ethanol oxidation on Pt(111)/Rh/Sn surface. The anion effect.
Paulino, M. E., et al.
Electrochemistry Communications, 52, 85?88-85?88 (2015)
Highly corrosion resistant platinum-rhodium alloy coating and its photocatalytic activity
Devendra, B. K, et al.
Inorganic Chemistry Communications, 134 (2021)

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