Harmonized System

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Section V > Chapter 27 > Heading 2710

Explanatory notes

… with acids or alkalis, with selective solvents, with zinc chloride, with absorbent earths, etc., or by …

Section VI > Chapter 28 > Heading 2813

Explanatory notes

… water. Smells of rotten eggs when impure. Very volatile and highly inflammable, it is dangerous to inhale and to handle. …

Section VII > Chapter 39 > Heading 3913

Explanatory notes

… characteristic of plasticity.        These include : (a)  Chlorinated rubber . This is usually produced in the form of …

Section VI > Chapter 28 > Heading 2836

Explanatory notes

… by heating a mixture of chalk and ammonium sulphate (or chloride), or by combining carbon dioxide with gaseous … carbonate which, in addition to various impurities (chlorides, sulphates, organic matter), contains ammonium …

Section VI > Chapter 29 > Heading 2901

Section VI > Chapter 28 > Heading 2805

Explanatory notes

… tins. Sodium is obtained by electrolysing molten sodium chloride or sodium hydroxide. It is used in the manufacture … of calcium oxide or by electrolysing molten calcium chloride. It is a white metal (specific gravity 1.57), used … or lithium as the reductant or by electrolysis of the fused chloride. It is a grey ductile metal, a little harder than …

Section VI > Chapter 29

Section VI > Chapter 28 > Heading 2804

Section VI > Chapter 38 > Heading 3821

Explanatory notes

… additional ingredients such as glucose, glycerol, sodium chloride, sodium citrate or dyes. Acids, digestive ferments … etc. There are also other media, e.g., mixtures of sodium chloride, calcium chloride, magnesium sulphate, potassium hydrogensulphate, …

Section VI > Chapter 28 > Heading 2807

Explanatory notes

… derivatives, etc.). The heading does not include : (a)   Chlorosulphuric acid (“sulphuric chlorohydrin”) and sulphonitric acid ( headings 28.06 and … acids) ( heading 28.11 ). (c)   Thionyl or sulphuryl chlorides ( heading 28.12) . …