Rhodium(III) chloride hydrate CAS#20765-98-4
Highly Efficient Catalytic Activity – Acts as an effective catalyst for multiple organic reactions, including acetic acid preparation and various transformation processes.
Versatile Reaction Applications – Suitable for a wide range of catalytic reactions such as alkene isomerization, aromatic ring reduction, alkene oxidation, and acetylene hydration.
Supports Advanced Organic Synthesis – Plays a key role in hydrosilylation reactions of α,β-unsaturated esters, enabling the formation of valuable intermediates.
Broad Industrial Utility – Widely used in fine chemical and pharmaceutical synthesis processes due to its multifunctional catalytic performance.
Rhodium(III) Chloride Hydrate CAS#20765-98-4
Rhodium(III) chloride hydrate is commonly used as a catalyst in the preparation of acetic acid. It also functions as a catalyst in a variety of organic reactions, including the isomerization of alkenes, the reduction of aromatic rings, the oxidation of alkenes, and the hydration of acetylene. In addition, it participates in the hydrosilylation of α,β-unsaturated esters to produce dimethylketene trimethylsilyl acetals.
Rhodium(III) chloride hydrate Chemical Properties
| Melting point | 100 °C (dec.)(lit.) |
| density | 2.76 |
| storage temp. | Store below +30°C. |
| solubility | Methanol (Slightly), Water (Slightly) |
| form | crystalline |
| color | White to off-white |
| Water Solubility | soluble |
| Sensitive | Hygroscopic |
| Merck | 148188 |
| Exposure limits | ACGIH: TWA 0.01 mg/m3 |
| NIOSH: IDLH 2 mg/m3; TWA 0.001 mg/m3 | |
| Stability: | hygroscopic |
| Major Application | PEM fuel cells |
| homogeneous catalyst | |
| material synthesis precursor | |
| InChI | InChI=1S/3ClH.H2O.Rh/h3*1H;1H2;/q;;;;+3/p-3 |
| InChIKey | HSSMNYDDDSNUKH-UHFFFAOYSA-K |
| SMILES | [Rh](Cl)(Cl)Cl.O |
| CAS DataBase Reference | 20765-98-4(CAS DataBase Reference) |
| Hazard Codes | Xn,Xi |
| Risk Statements | 22-41 |
| Safety Statements | 26-36/39 |
| RIDADR | 1759 |
| WGK Germany | 3 |
| TSCA | Yes |
| HazardClass | 8 |
| HS Code | 28439000 |
| Storage Class | 8A - Combustible corrosive hazardous materials |
| Hazard Classifications | Acute Tox. 4 Oral |
| Aquatic Acute 1 | |
| Aquatic Chronic 1 | |
| Eye Dam. 1 | |
| Met. Corr. 1 | |
| Muta. 2 |
Product Application of Rhodium(III) Chloride Hydrate CAS#20765-98-4
Rhodium(III) chloride is widely used in synthetic chemistry as a hydrogenation catalyst. It is also applied in the preparation of transition metal complexes, some of which serve as reagents in the decarbonylation and dehydration of fatty acids to produce alkenes.



