Harmonized System
Section VI > Chapter 28 > Heading 2818
… corundum, whether or not chemically defined; aluminium oxide; aluminium hydroxide. …
Explanatory notes
… corundum, whether or not chemically defined; aluminium oxide; aluminium hydroxide. 2818.10 ‑ Artificial corundum, whether or not … The aluminium oxide may contain small proportions of other oxides (e.g., titanium oxide, chromium oxide) either …Section VI > Chapter 28 > Heading 2821
… Iron oxides and hydroxides; earth colours containing 70 % or more …
Explanatory notes
… 28.21 ‑ Iron oxides and hydroxides; earth colours containing 70 % or more …Section V > Chapter 25 > Heading 2522
… slaked lime and hydraulic lime, other than calcium oxide and hydroxide of heading 28.25. …
Explanatory notes
… slaked lime and hydraulic lime, other than calcium oxide and hydroxide of heading 28.25. 2522.10 ‑ Quicklime 2522.20 ‑ Slaked …Section V > Chapter 25 > Heading 2519
… whether or not containing small quantities of other oxides added before sintering; other magnesium oxide, whether or not pure. …
Explanatory notes
… whether or not containing small quantities of other oxides added before sintering; other magnesium oxide, … magnesium carbonate, basic magnesium carbonate, magnesium hydroxide precipitated from sea water, etc. The main types …Section VI > Chapter 32 > Heading 3206 > 3206.1 > 3206.11
… Containing 80 % or more by weight of titanium dioxide calculated on the dry matter …
Classification opinions
… 1. Titanium dioxide of the anatase type, not surface treated , …Section VI > Chapter 28 > Heading 2820
… Manganese oxides. …
Explanatory notes
… 28.20 ‑ Manganese oxides. 2820.10 ‑ Manganese dioxide 2820.90 ‑ Other (1) … about 5), insoluble in water. A very powerful oxidising agent. Uses include pyrotechnics, organic …Section VI > Chapter 28 > Heading 2823
… Titanium oxides. …
Explanatory notes
… 28.23 ‑ Titanium oxides. The only titanium oxide of commercial interest is titanium dioxide or titanic anhydride (TiO 2 ), which gives the …Section VI > Chapter 29 > Heading 2909 > 2909.60
… Alcohol peroxides, ether peroxides, acetal and hemiacetal peroxides, ketone peroxides and their halogenated, …
Section VI > Chapter 28 > Heading 2810
… Oxides of boron; boric acids. …
Explanatory notes
… 28.10 ‑ Oxides of boron; boric acids. (A) OXIDES OF BORON Diboron trioxide (Boron sesquioxide) (B 2 O 3 ) exists as transparent vitreous …Section VI > Chapter 28 > Heading 2837
… Cyanides, cyanide oxides and complex cyanides. …