High-purity Acids and Bases Suprapur, Ultrapur | Reagents
Merck offers a broad variety of high-purity Suprapur and Ultrapur acids and bases for wet digestion. Ultrapur meets the highest demands of all users for ultra-trace instrumental analysis in ppt range, e.g. ICP-MS. Suprapur grade acids feature extremely low impurities which makes them perfect for high-precision analysis in the ppb range.
7.10: Semiconductor Grade Silicon - Chemistry LibreTexts
Electronic-grade silicon (EGS) is a polycrystalline material of exceptionally high purity and is the raw material for the growth of single-crystal silicon. EGS is one of the purest materials commonly available, see Table 7.10.2. The formation of EGS from MGS is accomplished through chemical purification processes.
High Purity - SemiTorr Group
High Purity. SemiTorr’s High Purity Division supports the microelectronics, semiconductor, data storage, LED, solar and adjacent technology markets. Our products include gas & fluid handling components, equipment and sub systems that optimize process and yield, and consumables for both the fab and sub fab. We help our customers solve problems
Nitrogen | Linde Gas
It is a colourless, odourless, tasteless, non-toxic and almost totally inert gas. It can be an asphyxiant in high concentrations. Nitrogen is produced in high volumes at air separation plants. A second purification process may be necessary if very high purity levels are required. Membrane techniques can also be used to recover nitrogen in lower
Ultra-High Purity Process Specification (FC-03)
AISI 316L (UNS S31603) Stainless Steel is commonly used for High Purity (HP) and Ultra-High Purity (UHP) Products, which Oxide thicknesshave excellent corrosion resistance and oxidation resistance. By Argon Oxygen Decarburization (AOD) or Vacuum Oxygen Decarburization (VOD), Stainless Steel material could be refined.
- What is nominal purity & analysis table?
- To the commercial high purity metals, nominal purity and analysis table are usually attached. As mentioned above, it is customary that the concentrations of gaseous impurities are not taken into account to express the nominal purity.
- What is high purity quartz?
- High purity quartz products are widely used all over the world. With rapid development of semiconductor industry and requirement of environmentally friendly solid waste treatment, the quartz market is experiencing a great revolution driven by technology.
- What is the production capacity of high purity quartz?
- As can be seen from Fig. 4, the global production capacity of high purity quartz was 1.731 million tons in 2019, of which 952,300 tons, or 55.00 percent, were produced in the United States, and 270,000 tons, or 15.59 percent, were produced in China (Hao et al., 2020).
- What is a high purity metal?
- And a large amount of theories and experience has been generated while producing high purity metals, such as Germanium , Tellurium , Cadmium , Aluminium , etc. These include basic mechanism clarification, modification of zone refining set-up, optimization of operation parameters, and numerical simulation, etc.
- Why do we need high purity materials?
- Since impurities at ppm or sub-ppm level influence the material properties and devise performance, high purity materials are required to prepare well controlled materials and devices. As well known, there exist strong needs of high purity materials for preparing compound semiconductors and for fabricating ULSI.
- Why do we need a high purity metal purification process?
- Since the development of high technology depends strongly on the availability of high purity metals required for fabricating a new functional device, and furthermore, the purity of commercial pure materials for exploratory material researches is insufficient, the purification process that meets any requirements should be developed.
