Harmonized System

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Section VI > Chapter 28 > Heading 2844

Section VI > Chapter 28 > Heading 2832

Explanatory notes

… sulphites ‑ salts of sulphurous acid (H 2 SO 3 ) (which exists only in aqueous solution and corresponds to the sulphur dioxide of heading 28.11). (B)  Metal thiosulphates ‑ salts …

Section VI > Chapter 38 > Heading 3824

Explanatory notes

… Subheading Note 3 to this Chapter : 3824.81 - - Containing oxirane (ethylene oxide) 3824.82 - - Containing polychlorinated biphenyls … (whether or not containing soap), e.g., based on calcium oxide, fatty acids, etc. (4)   Non‑refractory mortars and …

Section VI > Chapter 29 > Heading 2936

Explanatory notes

… S ub - Chapter XI PROVITAMINS, VITAMINS AND HORMONES GENERAL This … of preservation or transport : -     by adding anti-oxidants, -     by adding anti-caking agents(e.g., … in air, it is often stabilised by the addition of anti-oxidants. (2)   Vitamin A 2 alcohol (3-dehydroaxerophthol, …

Section VI > Chapter 29 > Heading 2928

Explanatory notes

… Nitrosophenols, which are tautomeric forms of quinone oximes, and nitrosoamines, which are tautomeric forms of quinoneimine oximes, are excluded from this heading (see Explanatory …

Section VI > Chapter 28 > Heading 2834

Explanatory notes

… crystals, hygroscopic and very soluble in water. Used as an oxidising agent in vat dyes; in organic synthesis; for … same method as sodium nitrite, or by the action of sulphur dioxide on a mixture of calcium oxide and potassium nitrate. A …

Section VI > Chapter 28 > Heading 2806

Explanatory notes

… acids containing oxygen, anhydrides are obtained. Most oxides of non‑metals are anhydrides. This sub‑Chapter covers … and acids formed, respectively, by metal oxides or hydroxides; these generally fall in sub‑Chapter IV (e.g., metal oxides, hydroxides and peroxides, such as acids or anhydrides of chromium, …

Section VI > Chapter 28 > Heading 2805

Explanatory notes

… They decompose cold water; they deteriorate in air, forming hydroxides. (1) Lithium . This is the lightest (specific … sodium hydroxide. It is used in the manufacture of sodium peroxide (“dioxide”), sodium cyanide, sodamide, etc., the …

Section XVI > Chapter 85 > Heading 8506

Explanatory notes

… cells and primary batteries (+) . 8506.10 - Manganese dioxide 8506.30 - Mercuric oxide 8506.40 - Silver oxide … or a non‑alkaline electrolyte (e.g., potassium or sodium hydroxide, ammonium chloride or a mixture of lithium …

Section XVII > Chapter 88 > Heading 8806

Explanatory notes

… Other, for remote-controlled flight only : 8806.21 ‑ ‑ With maximum take-off weight not more than 250 g 8806.22 ‑ - With maximum take-off weight more than 250 g but not more than 7 kg 8806.23 ‑ - With maximum take-off weight more than 7 kg but not more than 25 …