… (usually nylon). (4) Wire of steel (usually stainless), aluminium, silver, copper, etc. Metal strings are either … (5) Gut, silk or nylon covered with metal wire (aluminium or other base metal, whether or not silver‑plated, …
… For soda pulp the cooking liquor is a solution of sodium hydroxide; for sulphate pulp a modified sodium hydroxide solution is employed. The term “sulphate” came to be applied because sodium sulphate, part of which is converted into sodium …
… sintered dolomite Dolomite is a natural double carbonate of calcium and magnesium. The heading covers crude dolomite as well as … range of 700 °C - 1000 ° C to convert it into magnesium and calcium oxides by releasing carbon dioxide. On the other …
… chemical elements of Chapter 28 (for example, silicon and selenium) doped with, for example, boron or phosphorus, … classified in Chapter 28 . (2) Chemical compounds such as cadmium selenide and sulphide, indium arsenide, etc., containing certain additives (e.g., …
… : 2529.21 - - Containing by weight 97 % or less of calcium fluoride 2529.22 - - Containing by weight more than 97 % of calcium fluoride 2529.30 - Leucite; nepheline and nepheline … and nepheline syenite are composed of complex silicates of aluminium and alkali or alkaline‑earth metals. They are used …
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