… or unsaturated, the structure of which is derived from the hydrocarbon perhydro-1,2-cyclopentanophenanthrene, the hydroxyl group being linked to the 3-carbon, with a methyl … Terpin , obtained synthetically. White crystals. Terpin hydrate is obtained from turpentine; colourless crystals, …
… sub‑Chapter, this heading covers metal sulphides (salts of hydrogen sulphide (H 2 S) of heading 28.11). The old name “sulphydrates” (hydrosulphides) is sometimes applied to the acid sulphides. … sulphide), soluble in water, sulphating in the air, or in hydrated crystals (with 9 H 2 O), colourless or greenish, …
… cyanides. (A) CYANIDES Cyanides are the metal salts of hydrogen cyanide (hydrocyanic acid) (HCN) (heading 28.11). These salts are … Sodium cyanide (NaCN). Obtained by the action of coke or hydrocarbon gases and atmospheric nitrogen on sodium …
… ( heading 38.04 ), and the industrial products known as “hydrosulphites” stabilised by organic substances ( heading … sulphites. (1) Sodium sulphites . These include sodium hydrogen sulphite (NaHSO 3 ), disodium disulphite (Na 2 SO 3 … ) 2 ), obtained by the action of sulphur dioxide on calcium hydroxide. Used to dissolve lignin in the preparation of …
… 3 N) Primary amide Secondary amide Tertiary amide The hydrogen of the (–NH 2 ) or ( NH) groups may be substituted … of cyclic amines , e.g., acetoacetanilide; amides of hydroxynaphthoic acid , e.g., 3-hydroxy-2-naphthanilide; …
… - Reaction engines other than turbo-jets - Hydraulic power engines and motors : 8412.21 - - Linear … the injection-system. The fuels used include ethyl alcohol, hydrazine hydrate, etc., and the combustion agents are …
… (e.g., Fischer-Tropsch waxes consisting essentially of hydrocarbons) are, however, excluded . Water-soluble waxy … if having the character of waxes ( heading 15.05 ). (b) Hydrogenated oils, even if having the character of waxes ( …
… METALS GENERAL Metal salts are obtained by replacing the hydrogen element in an acid by a metal or by the ammonium … from non‑metals) or in sub‑Chapter IV (acid‑function metal hydroxides). Double or complex salts. Certain double or … or of mercury ( heading 28.52 ). (d) Phosphides, carbides, hydrides, nitrides, azides , silicides and borides ( …
