Iridium Bromide Hydrate
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Iridium Bromide Hydrate
Product |
Iridium Bromide Hydrate |
| Colour | Gray to black |
| Purity | 99% |
| Pack size | 100 Mesh (customizable) |
| Ingredient/MF | IrBr3•XH2O |
| Melting point | 100℃ |
| Product Code | NCZ-CP-240/20Â Â Â Â Â Â Â Â Â Â |
| CAS Number                                     | 171769-74-7 |
Iridium Bromide Hydrate Description
Iridium is a chemical element with the symbol Ir and atomic number 77. A very hard, brittle, silvery-white transition metal of the platinum group, iridium is considered to be the second-densest metal (after osmium) with a density of 22.56 g/cm3 as defined by experimental X-ray crystallography.
However, at room temperature and standard atmospheric pressure, iridium has been calculated to have a density of 22.65 g/cm3, 0.04 g/cm3 higher than osmium measured the same way. Still, the experimental X-ray crystallography value is considered to be the most accurate, and as such iridium is considered to be the second densest element.[6] It is the most corrosion-resistant metal, even at temperatures as high as 2000 °C. Although only certain molten salts and halogens are corrosive to solid iridium, finely divided iridium dust is much more reactive and can be flammable.
Iridium was discovered in 1803 among insoluble impurities in natural platinum. Smithson Tennant, the primary discoverer, named iridium after the Greek goddess Iris, personification of the rainbow, because of the striking and diverse colors of its salts. Iridium is one of the rarest elements in Earth’s crust, with annual production and consumption of only three tonnes. 191Ir and 193Ir are the only two naturally occurring isotopes of iridium, as well as the only stable isotopes; the latter is the more abundant.
The most important iridium compounds in use are the salts and acids it forms with chlorine, though iridium also forms a number of organometallic compounds used in industrial catalysis, and in research. Iridium metal is employed when high corrosion resistance at high temperatures is needed, as in high-performance spark plugs, crucibles for recrystallization of semiconductors at high temperatures, and electrodes for the production of chlorine in the chloralkali process. Iridium radioisotopes are used in some radioisotope thermoelectric generators.
Iridium is found in meteorites in much higher abundance than in the Earth’s crust.For this reason, the unusually high abundance of iridium in the clay layer at the Cretaceous–Paleogene boundary gave rise to the Alvarez hypothesis that the impact of a massive extraterrestrial object caused the extinction of dinosaurs and many other species 66 million years ago. Similarly, an iridium anomaly in core samples from the Pacific Ocean suggested the Eltanin impact of about 2.5 million years ago.
Related Information
Please email us for the customization.
Email: contact@nanochemazone.com
Please contact us for customization and price inquiry
Note: We supply different size ranges of Nano and micron as per the client’s requirements and also accept customization in various parameters.
Note: For pricing & ordering information, please contact us at sales@nanochemazone.com
Please contact us for quotes on Larger Quantities & Customization. E-mail: contact@nanochemazone.com
Customization:
If you are planning to order large quantities for your industrial and academic needs, please note that customization of parameters (such as size, length, purity, functionalities, etc.) are available upon request.
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Evaporate it in a vacuum and coat it on the metal mirror surface of the optical instrument as a protective film. Preparation of semiconductor materials.
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They are extremely hard, brittle, refractory ceramic materials with metallic electrical conductivity. They appear as brown-gray powders, which are usually processed by sintering.
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Tantalum Carbide Application:
Tantalum Carbide Powder Applications
1. Tantalum carbide is often added to tungsten carbide/cobalt (WC/Co) powder attritions to enhance the physical properties of the sintered structure. It also acts as a grain growth inhibitors preventing the formation of large grains, thus producing materials of optimal hardness.
2. It is also used as a coating for steel molds in the injection molding of aluminum alloys. While providing a hard, wear-resistant surface, it also provides a low friction mold surface.
3. Tantalum carbide is also used in the production of sharp instruments with extreme mechanical resistance and hardness.
4. It is also used in tool bits for cutting tools.
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| CAS No | 1315-09-9 |
| Purity | >99.9 % |
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| Molecular Weight | 144.35 g/mol |
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| Density | 5.27 g/cm³ |
| Melting Point | 1525 °C |
| Linear Expansion Coefficient | 7.57x10-6 @ 20°C |
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| Solubility in water | Insoluble in water |
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