CAS 10489-46-0 Rhodium sulfate bath - Catalysts / Alfa Chemistry

Synonyms

MFCD00016309; RTR-033713; O12Rh2S3; Rhodium(III) sulfate, bright plating solution, Rh 5% (cont. Rh); Solution of Rhodium sulfate ( inverted exclamation mark- ); Rhodium(III) sulfate, solution; ACMC-1BNTJ; EINECS 234-014-5; Rhodium(III)sulfate; Jsp000474;

IUPAC Name

rhodium(3+);trisulfate;

Molecular Weight

493.979g/mol

Molecular Formula

O12Rh2S3;

Canonical SMILES

[O-]S(=O)(=O)[O-].[O-]S(=O)(=O)[O-].[O-]S(=O)(=O)[O-].[Rh+3].[Rh+3];

InChI

InChI=1S/3H₂O4S.2Rh/c3*1-5(2,3)4;;/h3*(H2,1,2,3,4);;/q;;;2*+3/p-6;

InChI Key

YWFDDXXMOPZFFM-UHFFFAOYSA-H;

Complexity

62.2

Covalently-Bonded Unit Count

EC Number

234-014-5

Exact Mass

493.666g/mol

H-Bond Acceptor

Heavy Atom Count

Monoisotopic Mass

493.666g/mol

Topological Polar Surface Area

266A^2

Application

The Rhodium sulfate bath serves as a sophisticated electroplating medium, primarily utilized for the deposition of high-performance, decorative coatings on noble metals. It effectively facilitates the intricate plating of rhodium, especially in fine jewelry and horology, enhancing aesthetic and functional properties. Despite its benefits in producing ornamental finishes, it requires careful handling due to its reactive nature, particularly with substances such as bases, halides, and various organic compounds. Additionally, contact with water is to be avoided as it can generate heat. The product, a reddish-yellow solid in ~8% aqueous solution, is noted for emitting acid mists and toxic gases upon decomposition, demanding stringent safety measures during use.

January 13, 2025

Outstanding Rhodium Sulfate Bath for Research Applications

I've been using the Rhodium sulfate bath from Alfa Chemistry in our electroplating research. It's exceptional for high-performance coatings. The solution's red crystals seamlessly coat metals, enhancing durability and finish. Handle with care to avoid toxic emissions.