Rhodium(III) nitrate Chemical Properties

Boiling point:

100 °C

Density 

1.41 g/mL at 25 °C

storage temp. 

0-6°C

solubility 

insoluble in H2O

form 

Solution

color 

Dark orange-brown to red-brown solution

Water Solubility 

Soluble in alcohol, water, acetone

Exposure limits

ACGIH: TWA 0.01 mg/m3
NIOSH: IDLH 2 mg/m3; TWA 0.001 mg/m3

InChIKey

VXNYVYJABGOSBX-UHFFFAOYSA-N

CAS DataBase Reference

10139-58-9(CAS DataBase Reference)

EPA Substance Registry System

Nitric acid, rhodium(3+) salt (10139-58-9)

Safety Information

Hazard Codes 

C,Xi,O

Risk Statements 

8-34-35-36/38

Safety Statements 

26-45-36-23-36/37/39-17-15

RIDADR 

UN 3085 5.1/PG 3

WGK Germany 

3

RTECS 

VI9316000

F 

3-10

TSCA 

Yes

HazardClass 

5.1

PackingGroup 

II

HS Code 

28439090

MSDS

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• Language:English Provider:ALFA

Rhodium(III) nitrate Usage And Synthesis

Chemical Properties

Rhodium nitrate is a dark orange-brown solution with strong corrosive properties. It remains relatively stable at ambient temperatures but begins to decompose when heated to 255 degrees Celsius. It is insoluble in water but dissolves in ammonia solutions, hydroxides, carbonates, and organic acids such as acetic acid, gluconic acid, citric acid, and malic acid. Its primary application is in the manufacture of various catalysts, including hydrogenation catalysts, oxidation catalysts, desulfurization catalysts, and alkylation catalysts.

Uses

It acts as a chemical catalyst, it is used as a slurry bed in Hydrogenation reaction. It is an important raw material and intermediate used in Organic Synthesis, Pharmaceuticals industries.

Preparation

Rhodium nitrate is prepared by reacting rhodium with nitric acid, or by dissolving rhodium(III) oxide pentahydrate in nitric acid and evaporating the solution to dryness over a water bath.

Application

Rhodium(III) nitrate hydrate can be used as a precursor:
    To synthesize Rh-doped catalysts for various chemical transformations.
    With iron(III) nitrate nonahydrate to synthesis Fe–Rh/TiO2 catalysts for hydrogenation reaction.[1]
    For Ethene Hydroformylation, a bimetallic Rh/Co catalyst is synthesized by combining Rhodium(III) nitrate hydrate with Co(NO3)2 .6H2O.[2]
    For the simultaneous electrodeposition of Cu and Rh from an aqueous nitrate solution.[3]

Flammability and Explosibility

Not classified

References

[1] ROBERT M. PALOMINO . The effect of Fe–Rh alloying on CO hydrogenation to C2+ oxygenates[J]. Journal of Catalysis, 2015, 329: Pages 87-94. DOI:10.1016/j.jcat.2015.04.033.
[2] NING HUANG. Insights into the Bimetallic Effects of a RhCo Catalyst for Ethene Hydroformylation: Experimental and DFT Investigations[J]. Industrial & Engineering Chemistry Research, 2020, 59 42: 18771-18780. DOI:10.1021/acs.iecr.0c03437.
[3] DIMITRA ANASTASIADOU. A Study of Cu-Rh Electrodeposition**[J]. ChemElectroChem, 2022, 10 1. DOI:10.1002/celc.202200842.
[4] R. CAMINITI. Structure of rhodium(III) nitrate aqueous solutions. An investigation by x-ray diffraction and Raman spectroscopy[J]. The Journal of Physical Chemistry , 1986, 90 2: 238-243. DOI:10.1021/j100274a007.

Rhodium(III) nitrate(10139-58-9)Related Product Information

• Ruthenium(III) chloride
• Palladium nitrate
• Rhodium(III) nitrate dihydrate
• rhodium(3+) acetate
• Rhodium (III) chloride trihydrate
• Cupric nitrate trihydrate
• Rhodium(III) Chloride
• Ammonium hexachlororhodate(III)
• Rhodium(III) chloride hydrate
• Neodymium(III) nitrate hydrate
• DYSPROSIUM NITRATE
• Platinum nitrate
• Copper dinitrate
• Lanthanum(III) nitrate hexahydrate
• NITRONIUM TETRAFLUOROBORATE
• Miconazole Nitrate
• Aluminium nitrate nonahydrate
• Thiamine nitrate