Harmonized System
Section VI > Chapter 29 > Heading 2930
… Organo-sulphur compounds. …
Explanatory notes
… HETEROCYCLIC COMPOUNDS, NUCLEIC ACIDS AND THEIR SALTS, AND SULPHONAMIDES GENERAL The organo-inorganic compounds covered … or nitrogen, those of metals or other non-metals (such as sulphur, arsenic, lead, iron, etc.) directly linked to … 29.31 (other organo-inorganic compounds) do not include sulphonated or halogenated derivatives (including compound …Section VI > Chapter 28 > Heading 2807
… Sulphuric acid; oleum. …
Explanatory notes
… 28.07 ‑ Sulphuric acid; oleum. (A) SULPHURIC ACID Sulphuric acid (H … compounds, arsenical or seleniferous products, lead sulphate) by treatment with hydrogen sulphide or ammonium …Section X > Chapter 47 > Heading 4701
… Mechanical wood pulp. …
Explanatory notes
… 47.01 ‑ Mechanical wood pulp. Mechanical wood pulp is obtained solely by a mechanical process i.e., by … steaming of the wood. It should be noted that some pulps produced in refiners may be chemically treated. Such …Section VI > Chapter 28 > Heading 2831
… Dithionites and sulphoxylates. …
Explanatory notes
… 28.31 ‑ Dithionites and sulphoxylates. 2831.10 ‑ Of sodium 2831.90 ‑ Other Dithionites (hydrosulphites) are the salts of dithionous (“hydrosulphurous”) acid (H 2 S 2 O 4 ) which has not been isolated …Section VI > Chapter 28 > Heading 2808
… Nitric acid; sulphonitric acids. …
Explanatory notes
… 28.08 ‑ Nitric acid; sulphonitric acids. (A) NITRIC ACID Nitric acid (HNO 3 ) is … oxide oxidised. It can also be prepared by the action of sulphuric acid (alone or associated with sodium disulphate) on natural sodium nitrate; the impurities …Section X > Chapter 47 > Heading 4702
… Chemical wood pulp, dissolving grades. …
Explanatory notes
… 47.02 ‑ Chemical wood pulp, dissolving grades. This heading covers chemical wood … (“soda” process), a mixture of sodium hydroxide and sodium sulphate, which is converted partly into sodium sulphide (“sulphate” process), calcium bisulphite or …Section VI > Chapter 28 > Heading 2806
… Hydrogen chloride (hydrochloric acid); chlorosulphuric acid. …
Explanatory notes
… 28.06 ‑ Hydrogen chloride (hydrochloric acid); chlorosulphuric acid. 2806.10 ‑ Hydrogen chloride (hydrochloric acid) 2806.20 ‑ Chlorosulphuric acid (A) HYDROGEN CHLORIDE (HYDROCHLORIC ACID) …Section XXI > Chapter 97 > Heading 9703
… Original sculptures and statuary, in any material. …
Explanatory notes
… 97.03 ‑ Original sculpture and statuary, in any material. 9703.10 - Of an age … 100 years 9703.90 - Other This heading covers original sculptures and statuary, ancient or modern. They may be in … therefore covers not only the original models made by the sculptor but also copies and reproductions of those models …Section VI > Chapter 29 > Heading 2904
… Sulphonated, nitrated or nitrosated derivatives of …
Explanatory notes
… 29.04 - Sulphonated, nitrated or nitrosated derivatives of … or only nitroso groups - Perfluorooctane sulphonic acid, its salts and perfluorooctane sulphonyl fluoride : 2904.31 ‑ - Perfluorooctane sulphonic …Section VI > Chapter 29 > Heading 2905
… Acyclic alcohols and their halogenated, sulphonated, nitrated or nitrosated derivatives. …