Harmonized System

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Section VI > Chapter 29 > Heading 2936 > 2936.2 > 2936.29

Classification opinions

… as vitamin B3, is an organic compound with the formula C6H5NO2 and, depending on the definition used, one of the 20 … as vitamin B3, is an organic compound with the formula C6H6N2O and, depending on the definition used, one of the 20 …

Section VI > Chapter 28 > Heading 2834

Explanatory notes

… primers, etc. (3)   Magnesium nitrate (Mg(NO 3 ) 2 .6H 2 O). Colourless crystals, soluble in water. Used in … is used in medicine. (6)   Cobalt nitrate (Co(NO 3 ) 2 .6H 2 O). Purple, reddish or brownish crystals, soluble in … cobalt‑plating, etc. (7)   Nickel nitrate (Ni(NO 3 ) 2 .6H 2 O). Water‑soluble, deliquescent green crystals. Used in …

Section VI > Chapter 28 > Heading 2842

Explanatory notes

… ferrous sulphate, Mohr’s salt) (FeSO 4 .(NH 4 ) 2 SO 4 .6H 2 O). Light green crystals, soluble in water. Used in … and in medicine. (b)   Cobalt (CoSO 4 .(NH 4 ) 2 SO 4 .6H 2 O). Red crystals, soluble in water. Used in cobalt‑ … and in ceramics. (c)   Nickel (NiSO 4 .(NH 4 ) 2 SO 4 .6H 2 O). Green crystals, decomposed by heat; very soluble in …

Section VI > Chapter 28 > Heading 2828

Explanatory notes

… and bleaching agent. (1)   Sodium hypochlorite (NaClO.6H 2 O). Put up in aqueous solutions, is nowadays … as Dakin’s solution). (2)   Potassium hypochlorite (KClO.6H 2 O). The aqueous solution of this salt was previously …

Section VI > Chapter 28 > Heading 2826

Explanatory notes

… Copper hexafluorosilicate (copper fluorosilicate) (CuSiF 6 .6H 2 O). Blue, crystalline powder, soluble in water and … Zinc hexafluorosilicate (zinc fluorosilicate) (ZnSiF 6 .6H 2 O). Crystalline powder, soluble in water; reacts with …

Section VI > Chapter 28 > Heading 2827

Explanatory notes

… (6)   Cobalt dichloride (cobaltous chloride) (CoCl 2 .6H 2 O). In pink, red or purple crystals turning blue when … as a fire‑proofing material. (4)   Calcium bromide (CaBr 2 .6H 2 O). Prepared from calcium carbonate and hydrogen …

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