Chapter notes
CHAPTER 28
INORGANIC CHEMICALS; ORGANIC OR INORGANIC
COMPOUNDS OF PRECIOUS METALS, OF RARE EARTH
METALS, OF RADIOACTIVE ELEMENTS OR OF ISOTOPES
1 Except where the context otherwise requires, the
headings of this Chapter apply only to:
(a) Separate chemical elements and separate
chemically defined compounds, whether or not
containing impurities;
(b) The products mentioned in (a) above dissolved in
water;
(c) The products mentioned in (a) above dissolved in
other solvents provided that the solution
constitutes a normal and necessary method of
putting up these products adopted solely for
reasons of safety or for transport and that the
solvent does not render the product particularly
suitable for specific use rather than for general
use;
(d) The products mentioned in (a), (b) or (c) above
with an added stabiliser (including an anti-caking
agent) necessary for their preservation or tran-
sport;
(e) The products mentioned in (a), (b), (c) or (d)
above with an added anti-dusting agent or a
colouring substance added to facilitate their
identification or for safety reasons, provided
that the additions do not render the product
particularly suitable for specific use rather
than for general use.
2. In addition to dithionites and sulphoxylates,
stabilised with organic substances (heading 28.31),
carbonates and peroxocarbonates of inorganic bases
(heading 28.36), cyanides, cyanide oxides and complex
cyanides of inorganic bases (heading 28.37), fulminates,
cyanates and thiocyanates, of inorganic bases (heading
28.42), organic products included in headings 28.43 to
28.46 and 2852.00.00 and carbides (heading 28.49), only
the following compounds of carbon are to be classified
in this Chapter:
(a) Oxides of carbon, hydrogen cyanide and fulminic,
isocyanic, thiocyanic and other simple or complex
cyanogen acids (heading 28.11);
(b) Halide oxides of carbon (heading 28.12);
(c) Carbon disulphide (heading 28.13);
(d) Thiocarbonates, selenocarbonates, telluro-
carbonates, selenocyanates, tellurocyanates,
tetrathiocyanatodiamminochromates (reineckates)
and other complex cyanates, of inorganic bases
(heading 28.42);
(e) Hydrogen peroxide, solidified with urea (heading
2847.00.00), carbon oxysulphide, thiocarbonyl
halides, cyanogen, cyanogen halides and cyanamide
and its metal derivatives (heading 2853.00.00)
other than calcium cyanamide, whether or not pure
(Chapter 31).
3. Subject to the provisions of Note 1 to Section VI, this
Chapter does not cover:
(a) Sodium chloride or magnesium oxide, whether or not
pure, or other products of Section V;
(b) Organo inorganic compounds other than those
mentioned in Note 2 above;
(c) Products mentioned in Note 2, 3, 4 or 5 to Chapter
31;
(d) Inorganic products of a kind used as luminophores,
of heading 32.06; glass frit and other glass in
the form of powder, granules or flakes, of heading
32.07;
(e) Artificial graphite (heading 38.01); products put
up as charges for fire extinguishers or put up in
fire extinguishing grenades, of heading 3813.00.00;
ink removers put up in packings for retail sale,
of heading 38.24; cultured crystals (other than
optical elements) weighing not less than 2.5g each,
of the halides of the alkali or alkaline earth
metals, of heading 38.24;
(f) Precious or semi precious stones (natural,
synthetic or reconstructed) or dust or powder of