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Rhodium oxide

Uses Preparation
Rhodium oxide
Rhodium oxide structure
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:
O3Rh2
Formula Weight:
253.81
MOL File:
12036-35-0.mol

Rhodium oxide Properties

Melting point:
1100°C (dec.)
Density 
8.2 g/mL at 25 °C(lit.)
storage temp. 
Inert atmosphere,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
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
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
0
2 2
OX

Rhodium oxide price More Price(7)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 204226 Rhodium(III) oxide 99.8% 12036-35-0 500mg $275 2021-03-22 Buy
Sigma-Aldrich 204226 Rhodium(III) oxide 99.8% 12036-35-0 1g $476 2021-03-22 Buy
Alfa Aesar 011814 Rhodium(III) oxide, anhydrous, 99.9% (metals basis), Rh 80.6% min 12036-35-0 0.5g $274 2020-06-24 Buy
Alfa Aesar 011814 Rhodium(III) oxide, anhydrous, 99.9% (metals basis), Rh 80.6% min 12036-35-0 2g $928 2020-06-24 Buy
Strem Chemicals 45-1865 Rhodium(III) oxide, anhydrous (99.9%-Rh) 12036-35-0 2g $1597 2021-03-22 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

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.

Rhodium oxide Preparation Products And Raw materials

Raw materials

Preparation Products


Rhodium oxide Suppliers

Global( 119)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Henan Tianfu Chemical Co.,Ltd.
0371-55170693
0371-55170693 info@tianfuchem.com CHINA 22607 55
Hangzhou FandaChem Co.,Ltd.
008615858145714
+86-571-56059825 fandachem@gmail.com CHINA 8882 55
career henan chemical co
+86-371-86658258
sales@coreychem.com CHINA 29961 58
Hubei Jusheng Technology Co.,Ltd.
86-18871470254
027-59599243 linda@hubeijusheng.com CHINA 28229 58
Chongqing Chemdad Co., Ltd
+86-13650506873
sales@chemdad.com CHINA 37282 58
Antai Fine Chemical Technology Co.,Limited
18503026267
info@antaichem.com CHINA 9664 58
SIMAGCHEM CORP
13806087780 +86 13806087780
shaobowang@simagchem.com CHINA 17607 58
Hefei TNJ Chemical Industry Co.,Ltd.
0551-65418671
0551-65418697 sales@tnjchem.com CHINA 37441 58
Dayang Chem (Hangzhou) Co.,Ltd.
17705817739 +86-571-88938639
+86-571-88938652,+86-571- 88492614 info@dycnchem.com CHINA 52932 58
Zhuoer Chemical Co., Ltd
+86-13524231522
+86-21-58816016 sales@zhuoerchem.com CHINA 3014 58

View Lastest Price from Rhodium oxide manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2019-07-06 Rhodium oxide
12036-35-0
US $1.00 / kg 1kg 95%-99% 100kg career henan chemical co

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