The gelatinous urate must now be collected, the following special procedure being necessary: Prepare an asbestos filter by filling a 4 oz.
Having collected the precipitate of silver urate on the prepared filter, wash it repeatedly with distilled water, until the washings cease to become opalescent with a soluble chloride.
Now dissolve the pure urate by washing it through the filter with a few cubic centimeters of the special nitric acid.
The whole process depends on the fact that argentic urate fails to dissolve in ammonia, but is soluble in nitric acid, and is thus easily obtained in the pure state.
The alterations in the joints are identical with those found in the general variety of rheumatoid arthritis, and exist without {92} deposits of urate of soda (Charcot).
Ebstein claims that this necrotic area, in which there is deposited a crystalline urate of soda, and around which there is a secondary inflammatory zone, is characteristic solely of gout.
The soda salts are objectionable, for, combining with uric acid, they form the insoluble urateof soda.
The necrotic portion has, however, an acid reaction, which causes a deposition, from the soluble neutral salt, of an acid urate in a crystalline form.
The skin covering them is frequently stretched and glossy, and may exhibit white spots ofurate of soda.
These nodosities do not appear to suppurate or ossify or become infiltrated with urate of soda, and histologically they resemble organizing granulative tissue.
There is no special liability to interstitial nephritis in articular rheumatism, nor is urate of soda present in the blood in that disease.
The urate of lithia is the most soluble of the uric-acid salts, and the low chemical equivalent of the metal lithium makes the neutralizing power of the oxide much greater than that of equal proportions of the other alkalies.
Functional derangements of the stomach are often accompanied by pale urate deposits in the urine.
Gouty concretions, calculi (urate of sodium) formed in the joints, kidneys, etc.
They consist usually of urate of sodium; when occurring in the internal organs they are also composed of phosphate of calcium.
Gouty kidney, an affection occurring during the progress of gout, the kidney shriveling and containing concretions of urate of sodium.
Combined in the form of urate of ammonia, it is the chief constituent of the urine of birds and reptiles, forming the white part.
This is calcium urate (not sodium urateas is generally stated).
Crystals of ammonium urate (one-half of the forms copied from Rieder's Atlas, the others from nature).
When ammonia is added, they dissolve and crystals of ammoniumurate appear.
This is the only urate deposited in alkaline urine.
It is possible--as in urate infarcts of infants--for urates to be molded into cylindric bodies within the renal tubules.
Illustration: Urate of soda in a globular form commonly found in the urine of children.
The faeces of the boa constrictor consist of little else than urate of ammonium.
Heintz states that they are a mixture of urate of sodium with small quantities of the urates of ammonium, lime, and magnesium.
Guano acts as a source of ammonia, containing much oxalate and urate of ammonia, with some phosphates.
The gouty concretions of the joints, popularly known as chalk-stones, consist chiefly of urate of sodium.
Guano derives its principal value as a manure from the presence of urate of ammonium.
Urate of sodium occurs as the concretions known as 'chalk stones' in gout.
Crystals of triple phosphate with spherules of urate of soda.
The triple phosphate is rarely met with alone, urate of ammonia, and sometimes uric acid and oxalate of lime, being present, although generally occurring in neutral or alkaline urine.
Urate of sodium is, however, much more common in the urine of children than of adults, when it presents itself in the form of spherical crystals.
If the turbidity is owing to the urate it will disappear; if to chyle it will remain.
I look forurate of ammonia, that constantly recurring product of the various stages of the metamorphoses.
They contain uric acid, and probably consist of urate of soda.
The salt (probably urate of soda) is formed by the waste of the proteids of the body.
The characteristic gouty deposit is urate of soda, due to an excess of nitrogenous elements of the blood.
Urate is prepared by adding gypsum to urine, and collecting and drying the precipitate produced.
This method is subject to the same objection as that by which urate is made, namely, that the greater part of the ammonia is not precipitated.
I look for urateof ammonia, that constantly-recurring product of the various stages of the metamorphoses.
The bursal tumours were almost entirely composed of urate of soda.
In the gouty form, urate of soda is deposited in the wall of the bursa, and may result in the formation of chalky tumours, sometimes of considerable size (Fig.
A deposit of urate of soda beneath the endothelial covering of tendons or of that lining their sheaths is commonly met with in gouty subjects.
Section through Bursa over external malleolus, showing deposit of urate of soda.
Among the first are comprehended Uric acid (also called Lithic,) Urateof Ammonia, and the more rarely occurring Urate of Soda.
This acid is ascribed by some toUrate of Ammonia, which is to a small extent soluble in water.
Becquerel, that in febrile disorders and inflammations there is excreted in the urine an excess of Urea and of Urate of Ammonia, substances which are formed by the oxidation of the Nitrogenous tissues.
Uric acid and Urate of Ammonia,) are entirely dispelled by a red heat, and are soluble in alkalies.
The Oxalate of Lime rarely occurs alone in the urine; there is generally along with it some Urate of Ammonia.
In Gout we have sometimes a deposit of urate of soda in the cellular tissue opposite the small joints.
In Gout we meet with another Arthritic affection, in which there is urate of soda in the blood, and an excess of uric acid and urea in the urine.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "urate" in a variety of sentences. We hope that you will now be able to make sentences using this word.
