Harmonized System

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Section II > Chapter 14 > Heading 1404

Explanatory notes

… material for the preparation of smokeless powders and the manufacture of man‑made fibres (e.g., rayon) and cellulose plastics. They are also sometimes used in the manufacture of certain varieties of paper, filter blocks and … carving.         These products are primarily used for the manufacture of buttons, beads, rosaries and other small …

Section VI > Chapter 28 > Heading 2825

Explanatory notes

… fumes in the air. A powerful reducing agent, used in the manufacture of a priming explosive or in chemical synthesis. … preparing vanadium salts, certain inks, and as a catalyst (manufacture of sulphuric acid, phthalic anhydride or … used as colouring matter in the enamel industry and for the manufacture of alkaline accumulator grid plates. (c)   …

Section VI > Chapter 38 > Heading 3824

Section VI > Chapter 38 > Heading 3805

Explanatory notes

… odour. They are used as solvents, particularly in the manufacture of varnishes, paints or polishes, in the preparation of medicaments, and in the manufacture of synthetic camphor, terpin hydrate, terpineol, … by steam or destructive distillation of the stumps or other sufficiently resinous parts of pine trees. (b) Sulphate …

Section VI > Chapter 28 > Heading 2815

Explanatory notes

… certain chemical wood pulps by elimination of the lignin, manufacture of regenerated cellulose, mercerising of cotton, … tantalum or niobium metallurgy, production of hard soaps, manufacture of many chemical products, including phenolic … lyes (soda lyes) obtained as residual products from the manufacture of wood pulp by the alkali or sulphate processes …

Section VI > Chapter 28 > Heading 2804

Explanatory notes

… in steel cylinders. Nitrogen is chiefly used for the manufacture of ammonia and calcium cyanamide, but is also … in powder form. It is used in metallurgy, and for the manufacture of heat regulators and highly sensitive … boron is also used, pure or alloyed with steel, for the manufacture of mobile control rods for nuclear reactors. …

Section XI > Chapter 56 > Heading 5603

Section VI > Chapter 28 > Heading 2841

Explanatory notes

… paper; as a filler for soap; for hardening plaster; for manufacturing opaque glass; for purifying industrial water, … water (ion exchanger); in paper‑making (sizing); in the manufacture of glass, soap, special cements, polishing … Solid, not easily melted, used as a white pigment and for manufacturing refractory bricks and linings. The heading …

Section VI > Chapter 35 > Heading 3507

Section VI > Chapter 28 > Heading 2833

Explanatory notes

… 99 % purity), generally obtained as by‑products of various manufacturing processes, are often described as “salt cake” … as a flux in glass‑making to obtain vitrifiable mixtures (manufacture of bottle glass, crystal and optical glass); in … (acid sulphate) (NaHSO 4 ). This residual salt of the manufacture of nitric acid occurs in deliquescent fused, …

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