… and substances, other than a foodstuff, such as sodium hydrogencarbonate (sodium bicarbonate) and tartaric acid … or aryl radicals (methyl, ethyl, phenyl, etc.) or sometimes hydrogen. They constitute the products known as Schiff’s …
… include wood naphtha, methanol, acetone, pyridine, aromatic hydrocarbons (benzene, etc.), colouring matter. This heading … which the secondary constituents (higher alcohols, esters, aldehydes, acids, etc.) present in the first distillate have …
… These machines can be distinguished from tools (pneumatic, hydraulic or with motor) for working in the hand of heading … 84.61 ). (d) Tools for working in the hand, pneumatic, hydraulic or with self‑contained electric or non-electric …
… and the precipitation by sulphuric acid of the fatty hydroxyacids. These products are encountered commercially in … neutralisation of the free fatty acids with a base (sodium hydroxide), and consisting of a mixture of crude soap and …
