Rhodium oxide

ChemicalBook > CAS DataBase List > Rhodium oxide

Uses Preparation

Product Name: 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
Formula Weight: 120.92
MOL File: 12036-35-0.mol

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Rhodium oxide Property

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

Crystal Structure

Corundum type

crystal system

Three sides

Space group

R3c

Lattice constant

a/nm	b/nm	c/nm	α/o	β/o	γ/o	V/nm3
0.5127	0.5127	1.3853	90	90	120	0.3154

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)

EPA Substance Registry System

Rhodium oxide (Rh2O3) (12036-35-0)

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Safety

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

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H271May cause fire or explosion; strong oxidiser

H302Harmful if swallowed

H312Harmful in contact with skin

H315Causes skin irritation

H319Causes serious eye irritation

H332Harmful if inhaled

H335May cause respiratory irritation

Precautionary statements

P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.

P220Keep/Store away from clothing/…/combustible materials.

P221Take any precaution to avoid mixing with combustibles/…

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P270Do not eat, drink or smoke when using this product.

P271Use only outdoors or in a well-ventilated area.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P283Wear fire/flame resistant/retardant clothing.

P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P306+P360IF ON CLOTHING: Rinse Immediately contaminated CLOTHING and SKIN with plenty of water before removing clothes.

P312Call a POISON CENTER or doctor/physician if you feel unwell.

P321Specific treatment (see … on this label).

P322Specific measures (see …on this label).

P330Rinse mouth.

P332+P313IF SKIN irritation occurs: Get medical advice/attention.

P362Take off contaminated clothing and wash before reuse.

P363Wash contaminated clothing before reuse.

P370+P378In case of fire: Use … for extinction.

P371+P380+P375in case of major fire and large quantities: Evacuate area. Fight fire remotely due to the risk of explosion.

P501Dispose of contents/container to..…

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N-Bromosuccinimide Price

Sigma-Aldrich

Product number: 204226
Product name: Rhodium(III) oxide
Purity: 99.8%
Packaging: 500mg
Price: $343
Updated: 2024/03/01

Sigma-Aldrich

Product number: 204226
Product name: Rhodium(III) oxide
Purity: 99.8%
Packaging: 1g
Price: $593
Updated: 2024/03/01

Alfa Aesar

Product number: 011814
Product name: Rhodium(III) oxide, anhydrous, 99.9% (metals basis), Rh 80.6% min
Packaging: 0.5g
Price: $940
Updated: 2023/06/20

Alfa Aesar

Product number: 011814
Product name: Rhodium(III) oxide, anhydrous, 99.9% (metals basis), Rh 80.6% min
Packaging: 2g
Price: $3230
Updated: 2023/06/20

Strem Chemicals

Product number: 45-1865
Product name: Rhodium(III) oxide, anhydrous (99.9%-Rh)
Packaging: 500mg
Price: $1451
Updated: 2024/03/01

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Rhodium oxide Chemical Properties,Usage,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.

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.

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

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View Lastest Price from Rhodium oxide manufacturers

henan kanbei chemical co.,ltd

Product: Rhodium oxide 12036-35-0
Price: US $0.00/kg
Min. Order: 1kg
Purity: 99%
Supply Ability: 1000kg
Release date: 2022-09-20

Career Henan Chemical Co

Product: Rhodium oxide 12036-35-0
Price: US $1.00/kg
Min. Order: 1kg
Purity: 95%-99%
Supply Ability: 100kg
Release date: 2018-12-22

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RHODIUM OXIDE ANDYDROUS

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12036-35-0

Rh2O3

O3Rh2xH2O

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