Explanatory notes
… falls in heading 31.04 or 31.05 . (1) Sodium sulphates include : (a) Disodium sulphate (neutral sulphate) (Na 2 SO … or hydrated state as a powder or in large transparent crystals, efflorescing in the air and dissolving in water … or from chromous sulphate (CrSO 4 ). These sulphates are included here. (5) Nickel sulphates . The most common of …
