In this anterior part, there is hollowed out an opening of an inch and a quarter broad, and 6 inches long, with which the outlet or gateway of the litharge communicates.
Floor of the furnace impregnated withlitharge 22 - 30 -- NOTE.
Linseed oil to which a drying quality has been communicated by boiling with litharge or sugar of lead, &c.
Lime-marl has been found to answer well for making the body of the hearth-sole, as it absorbs the vitrified litharge freely, without combining with it.
Litharge is merely this oxide in the form of small spangles, from having undergone fusion; it is more or less contaminated with iron, copper, and sometimes a little silver.
Still, by using very firm and readily drying fatty substances, such as linseed oil varnish dried withlitharge of silver it is possible, in case of need, to succeed fairly well.
Only for the first transfer I needed to use a somewhat stiffer color that had been dried more withlitharge of silver, and then to let the transfer dry for at least four or six days.
This color consists of a thin varnish in which a portion of litharge of silver or mennig or white lead has been dissolved thoroughly over the fire, and a proper amount of lampblack added.
Resin, finely pulverized litharge of silver, lampblack, thick oil varnish, and potash properly diluted with water gave me a good ink for the purpose.
Finely powdered litharge of silver dries still better, but only a small amount of printing-color must be mixed with it, because it toughens within an hour.
Afterward, when they are heated, he extracts with a bar the litharge which comes from the lead and the copper, if there be any of it in the alloy.
The litharge is drawn out on the other side through an aperture that is just wide enough for the master to creep through into the crucible.
The alloy having cooled, it is again crushed to powder and a pound of litharge is added to it; then it is heated again in another crucible until it melts.
Further, the litharge would probably take up some sulphur and throw down metallic lead into the "lump".
Put the Litharge and Ceruss into a brass pot, and incorporate them over a fire, with the Oils, adding the latter gradually, and stirring the mixture all the while.
The potash, up to the middle of the last century, was introduced in the form of pearl-ash imported from Canada or Russia, and the litharge came from the refineries where silver was extracted from the native lead.
Gaspar Harlin, physician to the court, both declared that litharge was noxious, but that sulphur besprinkled with bismuth was still more so.
In the following year, the city of Ulm discovered a poor man at Giengen, within its own jurisdiction, who had sweetened with litharge some sour wine purchased at Wurtemberg.
The motion was rejected, because neither litharge nor any other preparation of lead was shown to have been used, nor was any instance cited in which it had been detected, though an ordinance was made against its use in 1696.
But in the present century treatises have been published on the management of wine, in which the art of improving it by litharge has been taught, as a method perfectly free from danger[745].
Litharge was not unknown to the ancients; for it is mentioned by Dioscorides, Aëtius, and others.
Brugel also, physician to the town of Heidenheim, had declared that litharge was not prejudicial; and as he was a person of reputation, his opinion had tended not a little to establish the use of that practice.
On account of the fatness of the lamp-black, mix some lithargeand red lead.
BLACK SPOTS To spot a white horse with black spots, take litharge 3 oz.
This applies particularly to litharge (oxide of lead), to which reference has already been made.
Litharge is used to a very large extent, as it has a balancing effect in a rubber compound--that is to say, it allows of appreciable variation in vulcanising conditions, without corresponding alteration in the state of cure.
But if litharge be a constituent, it is found that acetone-extracted rubber will hardly vulcanise at all.
The two oxides of lead necessary to notice here briefly are--litharge and minium.
The tannate is decomposed in the usual way withlitharge and extracted by alcohol.
To thirty spoonfuls of linseed oil, add two ounces of litharge and one ounce of lamp-black: unite them together by boiling, and mark the sheep therewith.
Litharge or red lead 60 Purified pearlash 30 To this is added black manganese, to correct the colour, and sometimes nitre and arsenic.
The litharge will change its colour, forming a kind of sulphuret of lead, which is then ground with drying oil, and applied like paint.
The litharge of commerce often has a reddish yellow color, due to the presence of some of the red oxide of lead, and frequently from one to three per cent.
When heated to dull redness litharge assumes a dark brown color, and becomes yellow again on cooling.
Unslaked lime and litharge equal parts, mixed to a thin paste with water, will color buff--several coats will make it a dark brown; by adding a little ammonia and nitrate of silver a fine black is produced.
Mix two parts of finely powdered litharge with one part of very fine sand, and one part of quicklime which has been allowed to slack spontaneously by exposure to the air.
This man had previously bought up all the litharge from the apothecaries of Sedan and got it resold after mixing it with a few ounces of gold.
When he had consumed all the litharge in Sedan he made no more gold, nor ever more saw his philosopher or his forty thousand crowns.
At a red heat the lithargeand borate of lead are fused, and cause the adhesion of the platinum to the softened glass.
To the oil so charged the author adds litharge and borate of lead, and paints a thin coat of this mixture over the surface of the glass, which is then carried to a proper furnace.
Litharge is employed in pharmacy, to make plasters and several other preparations of lead; by painters as a 'drier' for oils; and for various other purposes in the arts.
Dissolve finely powdered litharge in boiling dilute hydrochloric acid, and set aside the filtered solution to cool.
The litharge and sulphate of lead used in the above processes may be again rendered available for the same purpose, by washing them in hot water, to remove adhering mucilage.
A mixture of ferrocyanide of potassium and litharge is heated as before, and dissolved out by alcohol, and crystallised.
The best solvents of litharge are nitric acid and acetic acid.
Foreign litharge generally contains copper and iron; and, not infrequently, a little silver and silica.
The door of the muffle is then opened and the current of air which is drawn over the scorifier rapidly oxidizes the lead, while the melted litharge gradually closes over the metal.
Other metals, except the silver and gold, also oxidize, and are carried by the melted litharge into the cupel.
Mixture of copperas andlitharge taken from the boiled oil 60 lbs.
The lampblack and litharge are ground separately upon the stone, in oil, then stirred into the white-lead and oil; the turpentine and varnish are added as the paint is required for use, or when it is packed in kegs for transportation.
Grind the lampblack in oil; mix it with the oil, then grind the litharge in oil and add it, stirring it well into the mixture.
Litharge (best) ground to a paste with drying-oil.
The red lead and litharge must be pure and absolutely free from oxide of copper (a common contamination), which gives a green tint to the glass.
The precaution of chusing a crucible, that shall contain a good deal more than the matter to be vitrified, is a necessary one, because Litharge and Glass of Lead are very apt to swell.
It is sometimes whitish, and is then calledLitharge of Silver; sometimes yellow, and then bears the name of Litharge of Gold.
We are necessitated to make use of this contrivance, because Iron in its metalline form cannot be dissolved either by Lead or by the Glass of Lead; but when it is reduced to a calx, litharge unites with it and scorifies it.
Increase the fire by degrees, as more and more litharge is formed and absorbed.
This sort of Oil is well adapted to dissolve those preparations of Lead called Lithargeand Minium, with which they form a thick tenacious substance, that is used for the basis of almost all plasters.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "litharge" in a variety of sentences. We hope that you will now be able to make sentences using this word.
