It breaks up intocyanogen gas, silver, and paracyanide of silver, a peculiar glow and effervescence occurring as it decomposes.
Chlorine water has been used: this converts the HCN into ammonium chloride, carbon monoxide and dioxide, and a little cyanogen chloride.
The cyanogen will have the characteristic bitter almond odour, and, on removing the finger, will burn with a flame violet on the margin and rosy in the centre.
Hydrocyanic acid itself has never been found as a natural constituent of the body, although a compound of cyanogen occurs in the saliva (see Sulphocyanides).
Norblad and Champneys on the Sunday, and to another part I added nitrate of silver for the purpose of separating the hydrocyanic acid, or rather the cyanogen it contained.
Subsequently muriatic acid was added in sufficient quantity when instantly Prussian blue appeared, which could not have resulted unless cyanogen or hydrocyanic acid had been present.
A compound formed by the union of cyanogen with an element or radical.
The name is also applied to the univalent radical, CN (the half molecule of cyanogen proper), which was one of the first compound radicals recognized.
Cyanogen is a colourless, poisonous gas, with a peculiar smell and easily condensed by cooling into a colourless liquid, insoluble in water and having a specific gravity of 0ยท86.
When cyanogen is formed, part of it always polymerises into a dark brown insoluble substance called paracyanogen, capable of forming cyanogenwhen heated to redness.
Here it is remarkable that exactly half the cyanogen becomes gaseous, and the other half is transformed into paracyanogen.
After the removal as much as possible of the sodium carbonate, a red liquid (from iron oxide) is left, containing sodium hydroxide mixed with compounds of sulphur and of cyanogen (see Chapter IX.
It is remarked that the explosion of mixtures of oxygen with marsh gas, ethylene and cyanogen is transmitted more quickly if the oxygen be taken in such a proportion that the carbon should burn to oxide of carbon, i.
This is observed in many other cyanogen derivatives, and is to be regarded as the consequence of the above-mentioned explanation of their nature.
Paracyanogen is a brown substance (having the composition of cyanogen) which is formed during the preparation of cyanogen by all methods, and remains as a residue.
It is a yellowish green powder, which gives ammonia and magnesia with water, and cyanogen when heated with carbonic anhydride.
The belief that it is cyanogen which gives its characteristic vital properties to the plasm is supported by a number of analogies that we find to exist between cyanide compounds, especially cyanic acid (C N O H.
In regard to the chemical question of the first formation of plasm and its inorganic preparation, Edward Pflueger conducted some valuable investigations, and recognized that the radical of cyanogen was the chief element of the living plasm.
He rightly attributes a great value to Pflueger's cyanogen theory, because "it makes a strictly scientific study of the problem in close relation to the facts of physiological chemistry, and goes thoroughly into detail.
There is an especial interest in connection with the theory of archigony and its physical basis in the chemical fact that cyanogen and its compounds--cyanide of potassium, cyanic acid, cyanide of hydrogen, etc.
On heating slightly, iodide of cyanogen is sublimed in beautiful needles.
Cyanogen was separated, and identified from the lungs and the liver.
Cyanogen gas, led into an alcoholic solution of codeine, gives first a yellow and then a brown colour; lastly, a crystalline precipitate falls.
Cyanogen also colours nicotine brown; the product out of alcohol is not crystalline.
It includes the important subject of ammonia, of the varieties of carburetted hydrogen, sulphuretted and phosphuretted hydrogen, and cyanogen and its compounds.
It consists of the potassium salt of a complex cyanogen derivative of picric acid.
Any one of a series of cyanogen compounds; particularly, one of those cyanides of alcohol radicals which, by boiling with acids or alkalies, produce a carboxyl acid, with the elimination of the nitrogen as ammonia.
When a solution of this double salt is electrolysed silver appears at one electrode and cyanogen at the other, while a proportionate amount of the simple cyanide of potassium is formed in the solution.
The compound formed by the union of cyanogen with a metal or other radical.
Faraday), and this fluid again becomes gaseous on withdrawal of the pressure; water absorbs nearly 5 times its bulk of cyanogen at 60 deg.
But if the positive electrode is of silver, the cyanogencombines with it, and forms cyanide of silver, which unites with the liberated cyanide of potassium, and so keeps up the strength of the solution.
The bicyanide of mercury itself is formed when peroxide of mercury is digested with Prussian blue, the peroxide of mercury abstracting the whole of the cyanogen from the blue, and leaving the oxides of iron at the bottom of the vessel.
The iodide of cyanogen is then withdrawn from the tube and mixed with potassa-lye and the precipitate mentioned above.
That is why in Delaney it had the appearance of cyanogen poisoning.
But the trace of cyanogenin the air was merely a coincidence, Haynes.
Leslie himself tells me that you found traces of cyanogen in the air--and you have just said so, too.
Defn: A compound of hydrocyanic acid with a base; -- distinguished from a cyanide, in which only the cyanogen so combines.
K4(CN)6Fe, the starting point in the manufacture of almost all cyanogen compounds, and the basis of the ferric ferrocyanate, prussian blue.
I pried open her jaws and smelled the sweetish odor of the cyanogen gas.
The odor of the released gas of cyanogen was strong.
But I remembered how, on Earth, Etl's cage had been surrounded by machine-guns and cyanogen tanks, rigged to kill him quickly if it became necessary.
And tanks of cyanogen were so arranged that the poison gas could be sent gushing into the cage at any time.
Cyanogen chloride, CNCl, may be regarded as the chloride of cyanic acid.
Cyanogen is a colourless gas, possessing a peculiar characteristic smell, and is very poisonous.
The odour of the released gas of cyanogen was strong.
I pried open her jaws and smelled the sweetish odour of the cyanogen gas.
Rhadampsicus had grown some cyanogen flower-crystals to make the place look homelike, and there was now a lovely reflection-pool in which liquid hydrogen reflected the stars.
The garden of cyanogenflowers and the border of ammonia crystals and the walkway of monoclinic sulphur, and the reflection pool of liquid hydrogen he'd installed in an odd half hour.
There were frost-trees of nitrogen, the elaborate crystal formations of argon, and here a wide sweep of oxygen crystal sward, with tiny peeping wild crystals of deep-blue cyanogen seeming to grow more thickly by the brook of liquid hydrogen.
By some chemists, cyanogen compounds are supposed to be present in the cementation powder, and the cyanogen contained in these is supposed to be the carrier of the carbon to the iron.
As cyanogen is only produced at an intense heat, it is surmised that the living substance may have been produced once and for all when the earth was incandescent.
He showed that cyanogen is one of the constituents of prussic acid; succeeded in determining the composition of cyanogen, and showing it to be a compound of two atoms of carbon and one atom of azote.
These are Muriatic acid, composed of chlorine and hydrogen Hydriodic acid iodine and hydrogen Hydrobromic acid bromine and hydrogen Prussic acid cyanogen and hydrogen.
A consequence of this empirical division was that marsh gas, ethylene and cyanogen were regarded as inorganic, and at a later date many other hydrocarbons of undoubtedly organic nature had to be included in the same division.
Cyanogen and hydrocyanic acid, recognizable by their odour, indicate decomposable cyanides.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "cyanogen" in a variety of sentences. We hope that you will now be able to make sentences using this word.
