ChemicalBook >> CAS DataBase List >>Rhodium(III) chloride hydrate
Rhodium(III) chloride hydrate
- CAS No.
- 20765-98-4
- Chemical Name:
- Rhodium(III) chloride hydrate
- Synonyms
- RHODIUM(III) CHLORIDE HYDRATE;Rhod;Rhodium Chloride Hydrate;RHODIUM TRICHLORIDE HYDRATE;oride trihydrate;Rhodium (III) chL;RhodiumchloridehydrateRh;trichlororhodium hydrate;hodium(III) chloride hydrate;Rhodium(III) chloride, puriss
- CBNumber:
- CB5473720
- Molecular Formula:
- Cl3H2ORh
- Molecular Weight:
- 227.27
- MDL Number:
- MFCD01941625
- MOL File:
- 20765-98-4.mol
- MSDS File:
- SDS
- TDS File:
- TDS
Last updated:2026-05-28 02:03:21
| 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 | 14,8188 |
| 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) |
| UNSPSC Code | 12352302 |
| NACRES | NA.23 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |     GHS05,GHS07,GHS08,GHS09 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Danger | |||||||||
| Hazard statements | H290-H302-H318-H341-H410 | |||||||||
| Precautionary statements | P202-P273-P280-P301+P312-P305+P351+P338-P308+P313 | |||||||||
| PPE | dust mask type N95 (US), Eyeshields, Gloves | |||||||||
| 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 |
|||||||||
| REACH Registrations | Active | |||||||||
| Limited Quantities | 5.0 L (1.3 gallons) (liquid) or 5.0 kg (11 lbs) (solid) | |||||||||
| Excepted Quantities | Max Inner Pack (30g or 30ml) and Max Outer Pack (1Kg or 1L) | |||||||||
| NFPA 704 |
|
Rhodium(III) chloride hydrate price More Price(94)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 206261 | Rhodium(III) chloride hydrate Rh 38-40 % | 20765-98-4 | 1g | $616 | 2026-04-30 | Buy |
| Sigma-Aldrich | 206261 | Rhodium(III) chloride hydrate Rh 38-40 % | 20765-98-4 | 5g | $2450 | 2026-04-30 | Buy |
| TCI Chemical | R0244 | Rhodium(III) Chloride Hydrate | 20765-98-4 | 250MG | $62 | 2023-01-07 | Buy |
| TCI Chemical | R0244 | Rhodium(III) Chloride Hydrate | 20765-98-4 | 1G | $170 | 2021-12-16 | Buy |
| Strem Chemicals | 45-1880 | Rhodium(III) chloride hydrate (38-41% Rh) | 20765-98-4 | 250mg | $157 | 2026-04-30 | Buy |
Rhodium(III) chloride hydrate Chemical Properties, Uses, Production
Chemical Properties
red-brown to dark brown crystalline powder, easily soluble in water, hydrochloric acid, alcohol and alkali solution, insoluble in ether and aqua regia, lose crystal water by strong heat and become insoluble, and then decompose into rhodium and chlorine.
Uses
Rhodium(III) chloride hydrate is used as a catalyst to prepare acetic acid. It is also used as a catalyst for the isomerization of alkenes, the reduction of aromatic rings, the oxidation ofalkenes, the hydration of acetylene. It is involved in the hydrosilylation of α,β-unsaturated esters to form dimethylketene trimethylsilyl acetals.
Application
Rhodium(III) chloride is often used in synthetic chemistry as a hydrogenation catalyst. Rhodium(III) chloride is also used to make transition metal complexes, some of which are used as reagents in the decarbonylation dehydration reactions of fatty acids to alkenes.
Reactions
Catalyst in conjunction with "pybox" for the asymmetric hydrosilylation of ketones.
C-C bond forming reactions. 
reaction suitability
core: rhodium
reagent type: catalyst
Rhodium(III) chloride hydrate Preparation Products And Raw materials
Raw materials
Preparation Products
Global Suppliers ( 362)
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Hangzhou Raisaijin Environmental Protection Technology Co., Ltd. | 18458449126 | 2862984566@qq.com | China | 36 | 58 |
| Chenzhou Gaoxin Platinum Industry Co., Ltd. | 0735-2390599 13574551630;15073547586 | 1156989506@qq.com | China | 78 | 58 |
| Baoji Funuokang Industrial Co., Ltd | 0917-3236817 13220096790 | 1754423088@qq.com | China | 3000 | 58 |
| Beijing HwrkChemical Technology Co., Ltd | 89508211 18501085097 | sales.bj@hwrkchemical.com | China | 9407 | 55 |
| Guangzhou Ilike Technology Co., LTD | 15800028809 18258355559 | ws@gzfcs.cn | China | 157 | 58 |
| J & K SCIENTIFIC LTD. | 18210857532 18210857532 | jkinfo@jkchemical.com | China | 96815 | 76 |
| Meryer (Shanghai) Chemical Technology Co., Ltd. | 4006356688 18621169109 | market03@meryer.com | China | 40202 | 62 |
| INTATRADE GmbH | +49 3493/605464 | sales@intatrade.de | Germany | 3563 | 66 |
| Alfa Aesar | 400-6106006 | saleschina@alfa-asia.com | China | 30103 | 84 |
| ShangHai DEMO Chemical Co.,Ltd | 400-021-7337 2355568890 | sales@demochem.com | China | 2569 | 57 |
View Latest Price from Rhodium(III) chloride hydrate manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2026-08-25 | RHODIUM TRICHLORIDE HYDRATE
20765-98-4
|
$2.00-5.00 | 1kg | 99% | 100kg | ZHENGZHOU JIUYI TIME NEW MATERIALS CO,.LTD | |
 |
2026-03-20 | rhodium (III) chloride trihydrate
20765-98-4
|
$1.00 | 1PCS | 99% | 10mt | Hebei Chuanghai Biotechnology Co., Ltd | |
 |
2022-09-21 | Rhodium (III) chloride trihydrate
20765-98-4
|
1kg | 99% | 1000kg | henan kanbei chemical co.,ltd |
-
- RHODIUM TRICHLORIDE HYDRATE
20765-98-4
- $2.00-5.00
- 99%
- ZHENGZHOU JIUYI TIME NEW MATERIALS CO,.LTD
-
- rhodium (III) chloride trihydrate
20765-98-4
- $1.00
- 99%
- Hebei Chuanghai Biotechnology Co., Ltd
-
- Rhodium (III) chloride trihydrate
20765-98-4
- $0.00
- 99%
- henan kanbei chemical co.,ltd
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