Harmonized System

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Section VI > Chapter 29 > Heading 2920

… Esters of other inorganic acids of non-metals (excluding esters of hydrogen halides) and their salts; their halogenated, sulphonated, …

Explanatory notes

… 29.20  -            Esters of other inorganic acids of non-metals (excluding esters of hydrogen halides) and their salts; their halogenated, sulphonated, …

Section XVII > Chapter 88 > Heading 8805

Explanatory notes

… be launched. The acceleration required for the take‑off is provided by the action of compressed air, steam, exploding cartridges, etc., exerted on a trolley or ram on which the … excludes  : (a) Motor driven winch gear used for launching gliders ( heading 84.25 ). (b) Rocket‑launching ramps and …

Section VI > Chapter 28 > Heading 2841

… Salts of oxometallic or peroxometallic acids. …

Explanatory notes

… 28.41 ‑ Salts of oxometallic or peroxometallic acids. 2841.30 ‑ Sodium dichromate 2841.50 ‑ Other chromates … and peroxometallic acids (corresponding to metal oxides which constitute anhydrides). The main groups of compounds covered by this …

Section VI > Chapter 29 > Heading 2938

Glycosides, natural or reproduced by synthesis, and their …

Explanatory notes

… Sub-Chapter XII GLYCOSIDES AND ALKALOIDS, NATURAL OR REPRODUCED BY SYNTHESIS, AND THEIR … salts, ethers, esters and other derivatives . 2938 .10 - Rutoside (rutin) and its derivatives 2938 .90 - Other …

Section VI > Chapter 29 > Heading 2934

… Nucleic acids and their salts, whether or not chemically defined; …

Explanatory notes

… 29.34 - Nucleic acids and their salts, whether or not chemically defined; … 2934.99  - -  Other This heading includes nucleic acids and their salts . These are complex compounds which, … They are combinations of phosphoric acids with sugar and pyrimidine or purine compounds. Generally in the form of …

Section VI > Chapter 28 > Heading 2813

Sulphides of non-metals; commercial phosphorus trisulphide. …

Explanatory notes

… 28.13 ‑ Sulphides of non-metals; commercial phosphorus trisulphide. 2813.10 ‑ Carbon disulphide 2813.90 ‑ Other The most important of these … either from natural sulphides, or from arsenic or arsenous oxide by treatment with sulphur or hydrogen sulphide. (a)  …

Section VI > Chapter 29 > Heading 2904

Explanatory notes

… nitroso groups               - Perfluorooctane sulphonic acid, its salts and perfluorooctane sulphonyl fluoride : 2904.31 ‑ - Perfluorooctane sulphonic acid … sulpho group (-SO 3 H); they are generally called sulphonic acids. The heading also includes salts and ethyl esters of …

Section XVI > Chapter 84 > Heading 8454

Explanatory notes

… elements such as manganese, silicon and phosphorus are oxidised and eliminated in the form of gas or molten slag.  The oxidation increases the temperature of the metal further. …

Section VI > Chapter 28 > Heading 2852

Explanatory notes

… common compounds of mercury are listed below : (1) Mercury oxides . Mercuric oxide (HgO) is the most important oxide of … paints or mercury salts, and as catalysts. (2) Mercury chlorides . (a) Mercurous chloride (calomel) (Hg 2 Cl 2 ). …

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