… shiny surface and consist essentially of layers of calcium carbonate coated with a horny material (conchiolin). The layers of carbonate cause optical interference and diffraction which …
… extracted from greasy wool by means of volatile solvents (carbon disulphide, etc.). Wool grease does not consist of … in boiling spirit but insoluble in water, although it can absorb a large quantity of water, turning into an unctuous …
… 3102.40 - Mixtures of ammonium nitrate with calcium carbonate or other inorganic non-fertilising substances … or not pure or treated with oil . (8) Urea (diamide of carbonic acid), whether or not pure . Used mainly as …
… alone ‑ in which case it is classified here ‑ or mixed with carbon, Prussian brown, etc. (saffron or Mars yellow), when … ( minettes , the hydrated oxide containing iron and calcium carbonates), limonite (hydrated oxide), magnetite (magnetic …
… plastics ( Chapter 39 ), rubber ( Chapter 40 ), paper and paperboard ( Chapter 48 ) or coated textile fabrics ( … grained or stamped, suede finished by grinding with carborundum or emery, varnished or metallised. Such …
… waisted, etc.) and darts for air, gas or spring guns, carbines or pistols, other than those for toys of heading … brass), inner cups and inner bases and linings (of metal or paperboard) and wads (of felt, paper or cork, etc.). (3) …
… hardened, or they may be reproduced by the artist in marble or in other hard materials. In the latter process, … may therefore be reproduced as two or three “copies” in marble, wood, wax, bronze, etc., and a few in terra‑cotta or …
… articles remain classified here, whether or not on a paper, paperboard, textile fabric or other backing. The heading … filed, etc. It is a heat- and sound-insulating and sound-absorbing material, used, in the forms mentioned above, in …
