Harmonized System

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Section VI > Chapter 28 > Heading 2834

Explanatory notes

… ‑ Nitrites               ‑ Nitrates : 2834.21 ‑ ‑ Of potassium 2834.29 ‑ ‑ Other (A) NITRITES Subject to the … metal salts of nitrous acid (HNO 2 ) (heading 28.11). (1)   Sodium nitrite (NaNO 2 ). Obtained by reducing sodium …

Section VI > Chapter 28 > Heading 2840

Explanatory notes

… 28.40 ‑ Borates; peroxoborates (perborates).               ‑ Disodium tetraborate (refined borax) : 2840.11 ‑ ‑ Anhydrous …

Section VI > Chapter 28 > Heading 2837

Explanatory notes

… ‑ Cyanides and cyanide oxides : 2837.11 ‑ ‑ Of sodium 2837.19 ‑ ‑ Other 2837.20 ‑ Complex cyanides Subject … and atmospheric nitrogen on sodium carbonate, by treating calcium cyanamide (see heading 31.02) with charcoal or by …

Section XV > Chapter 72 > Heading 7202

Explanatory notes

… 7202.30 - Ferro-silico-manganese               - Ferro-chromium : 7202.41 - - Containing by weight more than 4 % of …               - Other : 7202.91 - - Ferro-titanium and ferro-silico-titanium 7202.92 - - Ferro-vanadium 7202.93 - - Ferro-niobium 7202.99 - - Other …

Section VI > Chapter 28 > Heading 2804

Explanatory notes

… Other 2804.30 - Nitrogen 2804.40 - Oxygen 2804.50 - Boron; tellurium               - Silicon : 2804.61 - - Containing … - - Other 2804.70 - Phosphorus 2804.80 - Arsenic 2804.90 - Selenium (A) HYDROGEN Hydrogen is obtained by electrolysing … metals (oxy‑hydrogen blow lamps), etc. The heading excludes deuterium (stable hydrogen isotope) which falls in heading …

Section VI > Chapter 28 > Heading 2839

Explanatory notes

… commercial alkali metal silicates.               ‑ Of sodium : 2839.11 ‑ ‑ Sodium metasilicates 2839.19 ‑ ‑ Other … products (see Explanatory Note to heading 38.24). (2)   Potassium silicates . Used for similar purposes to sodium …

Section VI > Chapter 29 > Heading 2915

Explanatory notes

… carboxyl group (–COOH) by an inorganic cation, for example, sodium, potassium, ammonium. They may be represented by the formula ( RC(O)OM ) …

Section VI > Chapter 29 > Heading 2918

Section XVI > Chapter 85 > Heading 8541

Section XV > Chapter 81

Explanatory notes

… molybdenum (heading 81.02), tantalum (heading 81.03), magnesium (heading 81.04), cobalt, including cobalt mattes … cobalt metallurgy (heading 81.05), bismuth (heading 81.06), titanium (heading 81.08), zirconium (heading 81.09), antimony (heading 81.10) and …