… name cermets . The ceramic constituent usually consists of oxides, carbides, borides, etc. The metal component consists … important cermets are obtained from : (1) A metal and an oxide, e.g., iron‑magnesium oxide; nickel‑magnesium oxide; …
… 2 SO 4 ) is mainly obtained by passing oxygen and sulphur dioxide over a catalyst (platinum, ferric oxide, vanadium pentoxide, etc.). It is freed from impurities (nitrogen …
… These are generally prepared at the time of application by mixing together two components. One of these consists of an … based on zinc oxychloride . These are obtained from zinc oxide and zinc chloride to which retarding agents and, in … . These are obtained from magnesium chloride and magnesium oxide, to which fillers (e.g., wood flour) are added. They …
… metal, including electric wire coil‑winders 8479.82 ‑ ‑ Mixing, kneading, crushing, grinding, screening, sifting, … the cells before melting down. (5) Churns and mixers for mixing together the component parts of margarine. (6) Soap …
… action of sulphur vapours on burning carbon. Colourless, toxic liquid (specific gravity about 1.3). Not miscible with … either from natural sulphides, or from arsenic or arsenous oxide by treatment with sulphur or hydrogen sulphide. (a) …
… pickling, scraping and other processes to remove the oxide scale and crust formed during the heating of metal. … intended solely to protect products from rust or other oxidation, to prevent slipping during transport and to … (by various chemical processes, such as immersion in an oxidising solution), patina finishing, blueing (blue …
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