Harmonized System

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Section VI > Chapter 28 > Heading 2809

Explanatory notes

… Diphosphorus pentaoxide exists in crystalline, amorphous or vitreous form. These three varieties mixed together give … to preserve in the solid state, it is usually put up in aqueous solutions (e.g., 65 %, 90 %). The concentrated … thereof. Such mixtures, which are classified here, occur as vitreous masses, volatilising at red heat and are …

Section VI > Chapter 28 > Heading 2815

Explanatory notes

… hydroxide (caustic soda) : 2815.11 ‑ ‑ Solid 2815.12 ‑ ‑ In aqueous solution (soda lye or liquid soda) 2815.20 ‑ … by electrolysing sodium chloride. It may be presented as an aqueous solution or an anhydrous solid. Evaporation of the sodium hydroxide aqueous solution produces solid sodium hydroxide in the form …

Section VI > Chapter 29 > Heading 2904

Explanatory notes

… acid. (b) Toluenesulphonic acids (sometimes erroneously called benzylsulphonic acids). (c)  …

Section XVI > Chapter 85 > Heading 8542

Section VI > Chapter 28 > Heading 2842

Section VI > Chapter 29 > Heading 2933

Explanatory notes

… (INN), remifentanil (INN) and trimeperidine (INN); salts thereof 2933.34 - - Other fentanyls and their derivatives … (INN), secobarbital (INN) and vinylbital (INN); salts thereof 2933.54 - - Other derivatives of malonylurea (barbituric acid); salts thereof 2933.55 - - Loprazolam (INN), mecloqualone (INN), …

Section VI > Chapter 34 > Heading 3401

Explanatory notes

… with an alkaline reaction, which lather abundantly in aqueous solutions. There are three categories of soap : Hard … coloured and perfumed, which include : floating soaps and deodorant soaps, as well as glycerin soaps, shaving soaps, … cakes, moulded pieces or shapes, flakes, powder, paste or aqueous solution. (II) ORGANIC SURFACE-ACTIVE PRODUCTS AND …

Section VI > Chapter 28 > Heading 2827

Section VI > Chapter 38 > Heading 3802

Explanatory notes

… are not decolourising agents. On the other hand, in aqueous suspension they establish powerful electrostatic …

Section VI > Chapter 28 > Heading 2841

Explanatory notes

… solution. Occurs as a white powder soluble in water, in aqueous solutions or in paste form. Used as a mordant in … (not isolated), permanganic acid (HMnO 4 ) existing only in aqueous solution). (a)  Manganates . Sodium manganate (Na 2 … soluble in water, colouring the skin; also in purplish‑red aqueous solutions or in tablets. Powerful oxidising agent, …