Harmonized System

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Section VI > Chapter 28 > Heading 2811

Explanatory notes

… sulphuric acid on natural calcium fluoride (fluorite) or on cryolite. It is purified by treatment with potassium … Iodic acid (HIO 3 ) and its anhydride (I 2 O 5 ), prismatic crystals or in aqueous solutions. Used in medicine or as an … Peroxosulphuric acids (persulphuric acids), presented in crystalline form : (a)  Peroxodisulphuric acid (H 2 S 2 O 8 …

Section VI > Chapter 28 > Heading 2852

Explanatory notes

… important oxide of mercury. It can exist as a bright-red crystalline powder ( red oxide ) or as a denser … 2 ). Can exist as amorphous masses, as a powder or in white crystals; insoluble in water. Mercurous chloride is used … (mercury dichloride, corrosive sublimate) (HgCl 2 ). Crystallises in prisms or long white needles. Soluble in …

Section VI > Chapter 29 > Heading 2908

Explanatory notes

… - - Dinoseb (ISO) and its salts 2908.92 - - 4,6-Dinitro- o -cresol (DNOC (ISO)) and its salts 2908.99 - - Other These … with a strong odour. (2)   m - Chlorophenol . Colourless crystals. (3)   p - Chlorophenol . Crystalline mass with a disagreeable odour. The three …

Section VI > Chapter 29 > Heading 2912

Explanatory notes

… irritating odour; used in organic synthesis. (2) 2‑Butenal (crotonaldehyde) (CH 3 CH=CHCHO). Found in the first distillation products of crude alcohol; a colourless liquid with a penetrating odour. … liquid which, when left undisturbed, polymerises to a crystalline mass (paraldol). Used in organic synthesis, for …

Section VI > Chapter 29 > Heading 2941

Explanatory notes

… salts thereof 2941.90 - Other Antibiotics are a type of antimicrobial, the latter being an umbrella term covering … etc.). Natural antibiotics of this heading are   substances secreted by living micro‑organisms which have the effect of … Antibiotics can be effective at a concentration of a few micrograms per ml in the blood. The term antibacterials is …

Section XVI > Chapter 84 > Heading 8486

Explanatory notes

… furnaces for doping the wafers with impurities. (2)   Crystal growers and pullers for the production of extremely … the wafer within dimensional tolerances.  Especially critical is the flatness of its surface. (6)   Chemical …

Section XV > Chapter 73 > Heading 7314

Explanatory notes

… fencing, welded at the intersection, of wire with a maximum cross-sectional dimension of 3 mm or more and having a mesh … industry (for simple warp and weft fabrics, knitted or crocheted fabrics, etc.). The group includes wire grill in … safety guards for machines, flooring of foot‑bridges or crane runways, reinforcement of various building materials …

Section IV > Chapter 19 > Heading 1905

Explanatory notes

… sealing wafers, rice paper and similar products. 1905.10 - Crispbread 1905.20 - Gingerbread and the like               … sugar. (7)   “Pretzels” , i.e., brittle, glazed and salted crackers made of cylindrical length of dough often twisted …

Section VI > Chapter 29 > Heading 2936

Explanatory notes

… oily at room temperature but, when cooled, it forms yellow crystals. Since it is unstable in air, it is often … It is extracted from fresh water fish. The alcohol does not crystallise; the aldehyde, however, occurs as orange … etc.); it is usually obtained synthetically. It is a white crystalline powder, stable to air. (2)   Thiamine …

Section VI > Chapter 28 > Heading 2836

Explanatory notes

… carbonate (included in this heading) occurs in white crystalline masses or in powder, soluble in hot water. It … as an anhydrous (or dehydrated) powder, or in hydrated crystals (soda crystals, washing soda) with 10 H 2 O, … (acid carbonate, sodium bicarbonate) (NaHCO 3 ). Usually a crystalline powder or white crystals, soluble in water, …