… thereof : 2922.21 - - Aminohydroxynaphthalenesulphonic acids and their salts 2922.29 - - Other - … defined in Note 4 to Chapter 29 (alcohol, ether, phenol, acetal, aldehyde, ketone, etc., functions), as well as their …
… solution of organic and mineral substances (proteins, fatty acids and their derivatives, salts, sugars and glycosides) … particles of a normal concentrated latex. This is usually achieved by adding cationic surface‑active agents. The use of such latexes counters the …
… sulphides, etc.) similar to those of the metal salts of hydracids classified in sub‑Chapter V, are actually non‑metal combinations such as : (1) A halogen with … chlorides . (a) Iodine chloride (ICl) results from direct action of chlorine on iodine. Dark brown liquid above 27 °C; …
… (ISO) 3824.87 - - Containing perfluorooctane sulphonic acid, its salts, perfluorooctane sulphonamides, or … other substances (this applies, for example, to naphthenic acids) or prepared directly. The chemical or other … are, apart from a few exceptions, excluded therefrom and accordingly fall to be treated as preparations of this …
… preparations consisting of mixtures of chemicals (organic acids, calcium salts, etc.) with foodstuffs (flour, sugar, … not containing added cocoa, fall in heading 18.06 or 19.01 according to their cocoa content (see the General …
… salts of hydrazine , obtained by reaction with mineral acids, are also classified here. The most important is … in the enamel industry and for the manufacture of alkaline accumulator grid plates. (c) Nickelous hydroxide (Ni(OH) 2 …
… electrical, optical and chemical properties. The main characteristics of these semiconductor materials is that at room … control signal or field is weaker than the resulting action brought about by the change in resistance and thus … (emitter and collector). By applying appropriate voltages across the gate and emitter terminals, current in one …
… structure. Enzymes may be referred to as follows : (I) According to their chemical constitution, e.g. : (a) … with a non-protein compound of low molecular weight, acting as a cofactor. The cofactor may be either a metal … decarboxylase, pyridoxal phosphate in glutamine-oxo-acid aminotransferase). Sometimes both are required. (II) …
… 9022.30 ‑ X‑ray tubes 9022.90 ‑ Other, including parts and accessories (I) APPARATUS BASED ON THE USE OF X‑RAYS The … the structural characteristics of X‑ray apparatus vary according to the use for which they are designed, for … check the uniformity of alloys; in engineering to check the accuracy of assemblies; in the electrical industry to check …
… machines). The machines of this heading can be subdivided, according to their system of operation, into the following … DISPLACEMENT PUMPS These use the linear suction or forcing action of a piston or plunger driven within a cylinder, the inlet and outlet being regulated by valves. “Single-acting” pumps utilise the thrust or suction of one end of …
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