By repeating the decantation, shaking and whirling, the deposit will be found to consist almost entirely of diatoms.
Wash, precipitate by decantation, and dissolve in nitric acid.
The silica is washed by decantation two or three times with hydrochloric acid and hot water, before being thrown on to the filter.
Heat the solution and precipitate to the boiling point, and then wash the latter by decantation and filtration.
The two solutions are mixed, this precipitate is washed eight times by decantation, collected on a filter and pressed.
By washing the powdered root quickly with it by decantation, the yellow and brown are extracted in the form of an opaque liquid.
The oil and ammoniacal water which distil over do not mix, so that they may be easily separated by decantation.
When obtained, the colour must be quickly washed by decantation, or it changes first to violet and then to purple.
Precipitate as chloride, wash eight or ten times by decantation, and dissolve gradually in nitric acid.
The nitro-glycerin falls to the bottom of the vessel as an oily-looking liquid, which is washed by decantation.
1630s, "pour off the clear liquid from a solution by gently tipping the vessel," originally an alchemical term, from French décanter, perhaps from Medieval Latin decanthare "to pour from the edge of a vessel," from de- + Medieval Latin canthus "corner, lip of a jug," from Latin cantus, canthus "iron rim around a carriage wheel." Related: Decanted; decanting.