Rhodium
Rhodium
- CAS:
- 7440-16-6
- MF:
- Rh
- MW:
- 102.91
Suppliers by country/region
Company Type
Properties
- Melting point:
- 1966 °C (lit.)
- Boiling point:
- 3727 °C (lit.)
- Density
- 12.41 g/cm3 (lit.)
- storage temp.
- Inert atmosphere,Room Temperature
- solubility
- insoluble in acid solutions, slightly soluble in aqua regia
- form
- wire
- color
- Red
- Specific Gravity
- 12.41
- Resistivity
- 4.33 μΩ-cm, 20°C
- Water Solubility
- Insoluble
- Merck
- 14,8186
- Exposure limits
- ACGIH: Ceiling 2 ppm
OSHA: Ceiling 5 ppm(7 mg/m3)
NIOSH: IDLH 50 ppm; Ceiling 5 ppm(7 mg/m3)
Safety Information
- Symbol(GHS)
GHS07,GHS08,GHS02
- Signal word
- Danger
- Hazard statements
- H315-H319-H228-H413-H332-H335-H373
- Precautionary statements
- P210-P240-P241-P280-P370+P378a-P261-P305+P351+P338-P405-P501a-P260-P314-P304+P340-P312a-P403+P233
- Hazard Codes
- C,Xi,F
- Risk Statements
- 36/38-11-36/37/38-36-34-23
- Safety Statements
- 26-24/25-16-22-36-17-45-36/37/39
- RIDADR
- UN 3089 4.1/PG 2
- OEB
- D
- OEL
- TWA: 0.1 mg/m3
- WGK Germany
- 3
- RTECS
- VI9069000
- TSCA
- Yes
- HazardClass
- 4.1
- PackingGroup
- III
- HS Code
- 7110390000
- IDLA
- 100 mg Rh/m3
Use
Metallic rhodium is the whitest of the platinum metals and does not tarnish under atmospheric conditions. It is insoluble in most acids, including aqua regia, but is attacked by chlorine at elevated temperatures and by hot fuming sulfuric acid. Liquid rhodium dissolves oxygen, and ingots are made by argon-arc melting. At temperatures above 1200 C, rhodium reacts with oxygen to form rhodium oxide, Rh2O3. Rhodium is used to make the nibs of writing pens, to make resistance windings in high-temperature furnaces, for high-temperature thermocouples, as a catalyst, and for laboratory dishes. It is the hardest of the platinum-group metals; the annealed metal has a Brinell hardness of 135. Rhodium is also valued for electroplating jewelry, electric contacts, hospital and surgical instruments, and especially reflectors. The most important alloys of rhodium are rhodium platinum. They form solid solutions in any proportion, but alloys of more than 40% rhodium are rare. Rhodium is not a potent hardener of platinum but increases its high-temperature strength. It is easily workable and does not tarnish or oxidize at high temperatures. These alloys are used for thermocouples and in the glass industry.
24 India supplier list of "Rhodium"
- Product Name:Rhodium
- Products Intro:Purity: 98% | Package: 1 kg,5 kg, 10 kg,25kg and 1 MT
- Company Type: Reagent
- Country/Region: Maharashtra,INDIA
- Product Name:Rhodium
- Products Intro:Purity: 99% | Package: 1 kg,5 kg, 10 kg,25kg and 1 MT
- Company Type: Manufacturer
- Country/Region: Mumbai,INDIA
- Product Name:Rhodium
- Products Intro:Purity: 98% | Package: 1 kg,5 kg, 10 kg,25kg and 1 MT
- Company Type: Reagent
- Country/Region: Maharashtra,INDIA
- Product Name:RHODIUM 5% ON CHARCOAL
- Products Intro:Purity: 99% | Package: 1 kg,5 kg, 10 kg,25kg and 1 MT
- Company Type: Manufacturer
- Country/Region: Maharashtra,INDIA
- Product Name:Rhodium
- Products Intro:Purity: 99% | Package: 1 kg,5 kg, 10 kg,25kg and 1MT
- Company Type: Manufacturer
- Country/Region: West Bengal,INDIA
- Product Name:Rhodium
- Products Intro:Purity: 98% | Package: 1 kg,5 kg, 10 kg,25kg and 1 MT
- Company Type: Trader
- Country/Region: Maharashtra,INDIA
- Product Name:Rhodium
- Products Intro:Brand:sigma aldrich | Product Number:204218 | Purity:powder,99.95%tracemetalsbasis
- Company Type: Trader
- Country/Region: Bangalore,INDIA
- Product Name:Rhodium on Alumina 5%
- Products Intro:Brand：Glrinnovations | OriginalID：GLRBIN687
- Company Type: Trader
- Country/Region: New Delhi,INDIA
- Product Name:Rhodium
- Company Type: Reagent
- Country/Region: Maharashtra,INDIA
- Product Name:Rhodium Powder
- Company Type: Reagent
- Country/Region: Mumbai,INDIA