Rhodium oxide
- CAS No.
- 12036-35-0
- Chemical Name:
- Rhodium oxide
- Synonyms
- rhodium oxide;RHODIUM(+3)OXIDE;Rhodium trioxide;RHODIUM(III) OXIDE;Dirhodium trioxide;RHODIUM SESQUIOXIDE;Hodium trihydroxide;Rhodium oxide (Rh2O3);RHODIUM OXIDE ANDYDROUS;RHODIUM(III) OXIDE, 99.8%
- CBNumber:
- CB3114692
- Molecular Formula:
- H2ORh
- Molecular Weight:
- 120.92
- MDL Number:
- MFCD00011205
- MOL File:
- 12036-35-0.mol
- MSDS File:
- SDS
| Melting point | 1100°C (dec.) |
|---|---|
| Density | 8.2 g/mL at 25 °C(lit.) |
| storage temp. | under inert gas (nitrogen or Argon) at 2-8°C |
| form | Powder |
| color | Yellow |
| Specific Gravity | 8.2 |
| Water Solubility | Insoluble in water, acetone, conc. Hydrochloric acid, Nitric acid, Aqua regia. |
| Sensitive | Hygroscopic |
| Exposure limits |
ACGIH: TWA 1 mg/m3 NIOSH: IDLH 100 mg/m3; TWA 0.1 mg/m3 |
| InChIKey | XBBXDTCPEWHXKL-UHFFFAOYSA-N |
| CAS DataBase Reference | 12036-35-0(CAS DataBase Reference) |
| FDA UNII | 6PYI3777JI |
| EPA Substance Registry System | Rhodium oxide (Rh2O3) (12036-35-0) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H302-H319-H312-H315-H335-H332-H271 | |||||||||
| Precautionary statements | P261-P271-P304+P340-P312-P210-P220-P221-P280-P283-P306+P360-P371+P380+P375-P370+P378-P501-P264-P270-P301+P312-P330-P501-P264-P280-P305+P351+P338-P337+P313P-P280-P302+P352-P312-P322-P363-P501-P264-P280-P302+P352-P321-P332+P313-P362 | |||||||||
| Hazard Codes | O;Xi,Xi,O | |||||||||
| Risk Statements | 36/38-8 | |||||||||
| Safety Statements | 22-24/25-37/39-26-17 | |||||||||
| RIDADR | 3288 | |||||||||
| WGK Germany | 3 | |||||||||
| TSCA | Yes | |||||||||
| HazardClass | 6.1(b) | |||||||||
| PackingGroup | III | |||||||||
| HS Code | 28259085 | |||||||||
| NFPA 704 |
|
Rhodium oxide price More Price(18)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 204226 | Rhodium(III) oxide 99.8% | 12036-35-0 | 500mg | $343 | 2024-03-01 | Buy |
| Sigma-Aldrich | 204226 | Rhodium(III) oxide 99.8% | 12036-35-0 | 1g | $593 | 2024-03-01 | Buy |
| Alfa Aesar | 011814 | Rhodium(III) oxide, anhydrous, 99.9% (metals basis), Rh 80.6% min | 12036-35-0 | 0.5g | $940 | 2023-06-20 | Buy |
| Alfa Aesar | 011814 | Rhodium(III) oxide, anhydrous, 99.9% (metals basis), Rh 80.6% min | 12036-35-0 | 2g | $3230 | 2023-06-20 | Buy |
| Strem Chemicals | 45-1865 | Rhodium(III) oxide, anhydrous (99.9%-Rh) | 12036-35-0 | 500mg | $1451 | 2024-03-01 | Buy |
Rhodium oxide Chemical Properties,Uses,Production
Uses
Rh2O3 is used to make rhodium metal and its various salts. Also, the oxide is a catalyst for hydrogenation.
Preparation
Rhodium sesquioxide is obtained by heating rhodium metal to red heat in air.
4Rh + 3O2 → 2Rh2O3
Alternatively, Rh2O3 may be prepared by igniting rhodium nitrate, Rh(NO3)3.
Treating the sesquioxide with alkali first forms a yellow precipitate of pentahydrate, Rh2O3•5H2O, soluble in acid and excess alkali. In excess alkali a black precipitate of trihydrate, Rh2O3•3H2O is obtained. The trihydrate is insoluble in acids.
Chemical Properties
Rhodium oxide is YELLOW POWDER
Physical properties
Gray crystalline solid or amorphous powder; corundum-type structure; density 8.20 g/cm3; decomposes at about 1,100 to 1,150°C; insoluble in water, acids, or aqua regia.
The pentahydrate Rh2O3?5H2O is a yellow precipitate; soluble in acids; partially dissolves in hot water; ignites to form anhydrous oxide.
The trihydrate Rh2O3?3H2O is a black precipitate; insoluble in acids.
Uses
Use in the catalytic converters of automobiles. It is also used as an industrial catalyst in the manufacturing of chemical intermediates such as oxo-alcohols, as well as nitric acid and ethanoic (acetic) acid production. It is also an area of interest for new capacitor electrode material researchers, dynamic random access memory (DRAMs) and non volatile random access memories (FeRAMs) makers.
Uses
RH2o3 is used to make rhodium metal and its various salts. Also, the oxide is a catalyst for hydrogenation.
Production Methods
Rhodium(III) oxide, Rh2O3, can be prepared by heating the finely divided metal or its nitrate in air or O2. The rhodium(IV) oxide is also known. Rhodium trihydroxide may be precipitated as a yellow compound by adding the stoichiometric amount of KOH to a solution of RhCl3. The hydroxide is soluble in acids and excess base. When the freshly precipitated Rh(OH)3 is dissolved in HCl at a controlled pH, a yellow solution is first obtained in which the aquochloro complex of Rh behaves as a cation.
Flammability and Explosibility
Not classified
Rhodium oxide Preparation Products And Raw materials
Raw materials
Preparation Products
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 | info@tianfuchem.com | China | 21695 | 55 |
| Hangzhou FandaChem Co.,Ltd. | 008657128800458; +8615858145714 | fandachem@gmail.com | China | 9352 | 55 |
| career henan chemical co | +86-0371-86658258 | sales@coreychem.com | China | 29914 | 58 |
| Hubei Jusheng Technology Co.,Ltd. | 18871490254 | linda@hubeijusheng.com | CHINA | 28180 | 58 |
| Chongqing Chemdad Co., Ltd | +86-023-61398051 +8613650506873 | sales@chemdad.com | China | 39916 | 58 |
| Antai Fine Chemical Technology Co.,Limited | 18503026267 | info@antaichem.com | CHINA | 9641 | 58 |
| Zhengzhou Alfa Chemical Co.,Ltd | +8618530059196 | sale04@alfachem.cn | China | 12431 | 58 |
| SIMAGCHEM CORP | +86-13806087780 | sale@simagchem.com | China | 17367 | 58 |
| Hefei TNJ Chemical Industry Co.,Ltd. | 0551-65418671 | sales@tnjchem.com | China | 34572 | 58 |
| Dayang Chem (Hangzhou) Co.,Ltd. | 571-88938639 +8617705817739 | info@dycnchem.com | CHINA | 52867 | 58 |
View Lastest Price from Rhodium oxide manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2022-09-21 | Rhodium oxide
12036-35-0
|
US $0.00 / kg | 1kg | 99% | 1000kg | henan kanbei chemical co.,ltd | |
 |
2019-07-06 | Rhodium oxide
12036-35-0
|
US $1.00 / kg | 1kg | 95%-99% | 100kg | Career Henan Chemical Co |
-
- Rhodium oxide
12036-35-0
- US $0.00 / kg
- 99%
- henan kanbei chemical co.,ltd
-
- Rhodium oxide
12036-35-0
- US $1.00 / kg
- 95%-99%
- Career Henan Chemical Co