The redistilled oil of turpentine may also be rubbed upon the dry clothes with a sponge or a tuft of cotton, till the spot disappear; but it must be immediately afterwards covered with some plastic clay reduced to powder.
With some samples of crude paraffin oil the above operations have to be repeated two or three times, and even redistilled before the oil becomes sufficiently pure and colourless for sale.
When a very superior article is desired, the waters may be redistilled by a gentle heat, the first two thirds only being preserved.
To render the product absolutely pure, it is redistilled in an iron or green-glass retort, into which some naphtha has been put, that its vapour may expel the air, and prevent the oxidation of the metal.
The kreasote thus obtained is redistilled with the water which has passed over with it, whilst the distilled water, as before, is allowed from time to time to run back into the still.
Heat is now applied to the flask by means of a water-bath, and continued for several hours; the liquid which has distilled over is then treated with dry calcic chloride and redistilled exactly in the same way.
The filtrate from the nitric acid treatment was electrolyzed, this time in a platinum dish, and the liquid carefully removed, washed carefully with redistilled alcohol and ether.
The solutions used were prepared as follows: Redistilled alcohol was treated with a small amount of sodium hydroxide for twenty-four hours, then again distilled.
For a product of special purity, it should beredistilled under diminished pressure and collected over a 1-2'0 range.
The water is separated from the first fraction, which is then redistilled and yields 100 g.
This, however, is less with redistilled bisulphide than with the ordinary quality, and with suitable apparatus is not insuperable.
By using redistilled bisulphide this defect may be avoided.
The alcohol should be redistilled from potassium hydroxide over which it has been standing for some time, or with which it has been boiled for some time, using a reflux condenser.
Heat some redistilled amylic alcohol nearly to boiling (it boils at 120° C.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "redistilled" in a variety of sentences. We hope that you will now be able to make sentences using this word.
