bleaching, paraffin



bleaching, paraffin defined in 1909 year

bleaching, paraffin - Bleaching, Paraffin;
bleaching, paraffin - The crude paraffin as filtered, and boiled for 2 hours with 5 per cent, of its weight of sodium sulphide and sufficient water. It is allowed to cool, so that the mass swimming on the top may become compact and be removed; it is then washed with river water, pressed, and afterwards dissolved in 20 per cent, amyl-alcohol, the paraffin being left as a pasty and pliable mass. It must remain for a time, and then be strongly pressed after filtering through bone-black. (De Molon.)

near bleaching, paraffin in Knolik


bleaching, paper-pulphome
letter "B"
start from "BL"
bleaching, prints and printed books

definition of word "bleaching, paraffin" was readed 1218 times

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