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the pouring off of liquid from underlying sediment. Decantation is a laboratory and technical method of washing amorphous precipitates, making possible a more complete removal of mother liquor than does washing the precipitate through a filter. It is also used to extract soluble substances from powdered solid raw material (for example, for removing the sugar solution after treating sugar beet cossettes with hot water).
REFERENCESVoskresenskii, P. I. Tekhnika laboratornykh rabot, 9th ed. Moscow, 1969.
Kasatkin, A. G. Osnovnye protsessy i apparaty khimicheskoi tekhnologii, 7th ed. Moscow, 1961.