Lithopone, a white pigment consisting of zinc sulphide and barium sulphate, sometimes exhibits the peculiar property of darkening on exposure to sunlight.
One of the simplest mixtures used by the English is, Barium nitrate 37 per cent.
A third plan is to spread thebarium carbonate upon fish, toasted bread (moistened), or ordinary bread and butter.
Powdered white arsenic (arsenious acid) may be fed to rats in almost any of the baits mentioned under barium carbonate and strychnin.
One of the cheapest and most effective poisons for rats and mice isbarium carbonate.
Barium carbonate may be fed in the form of dough composed of four parts of meal or flour and one part of the mineral.
Among the principal poisons that have been recommended for killing rats and mice are barium carbonate, strychnin, arsenic, phosphorus, and squills.
Barium platinocyanide, which is much used in the fluorescent screens employed in work with the Rontgen rays, shows a brilliant green fluorescence with ordinary light.
Under the influence of an electromotive force the barium ions moved up the tube, disclosing their presence by the trace of insoluble barium sulphate formed.
Thus decinormal jelly solutions of bariumchloride and sodium chloride, the latter containing a trace of sodium sulphate, were placed in contact.
I have also incorporated a short section on the reciprocal salt-pair barium carbonate--potassium sulphate, which had been written for the German edition of this book by the late Professor W.
The diagram of solubilities of barium acetate not only illustrates the way in which the solubility curves of the different stable hydrates of a salt succeed one another, but it has also an interest and importance from another point of view.
Various examples of this behaviour are known, and we choose for illustration the solubility relationships of barium acetate and its hydrates (Fig.
At temperatures above 0deg, barium acetate can form two stable hydrates, a trihydrate and a monohydrate.
This curve represents the solubility of barium acetate as determined by Krasnicki.
The screen ofbarium platinocyanide is, therefore, another means for revealing the unknown world.
Like sodium sulphate and calcium sulphate, heavy spar when heated with charcoal parts with its oxygen and forms barium sulphide, BaS.
Barium nitrate is directly decomposed by the action of heat, barium oxide being left behind.
Thus, at a red heat oxygen displaces iodine frombarium iodide.
The result in one case is essentially water, chlorine, and manganese chloride; and in the other case barium chloride and hydrogen peroxide are produced.
Ozone may also be obtained by decomposing strong sulphuric acid by potassium manganate especially with the addition of barium peroxide.
The acid compounds of the peroxide and oxide of barium are easily distinguishable by their stability.
At Andreasberg in the Harz it is found in the lead and silver veins; and at Strontian in Argyllshire in lead veins, associated with brewsterite (a strontium and barium zeolite), barytes and calcite.
Similar sodium, ammonium, lithium, magnesium, calcium, barium and zinc salts have been obtained.
The chromates are stable towards heat; they are poisonous, and may be recognized by the yellow precipitates they give with soluble barium and lead salts.
Radium is an element resembling calcium, strontium, and barium in chemical properties; its atomic weight was determined by Mme.
A double chloride of barium and lead was formed slowly in a similar way.
In the first portion the barium is determined; in the second the barium chloride.
From the quantity of barium valerate found he calculates the amount of amyl alcohol present in the original solution; 150 c.
Then I found the shelf on the side next the tube, and then the sheet of paper prepared with barium platinocyanide.
A piece ofbarium platinocyanide paper lay on the bench there.
You will find a sheet of barium paper on the shelf," he added, and then went away to the coil.
A white is sometimes prepared for process work from barium sulphate.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "barium" in a variety of sentences. We hope that you will now be able to make sentences using this word. Other words: gold; iron; lead; metal; silver