Another way of working the iodic acid test is to add the iodic acid solution to the liquid in which morphine is supposed to be dissolved, and then shake the liquid up with a few drops of carbon disulphide.
It does not give the reaction with iodic acid like morphine; it is distinguished from narceine by dropping a small particle of iodine into the aqueous solution, the iodine particle does not become surrounded with fine crystals.
Amyl alcohol= extracts from the alkaline solution morphine, identified by its physical characters, by its forming a crystalline precipitate with iodine and hydriodic acid, and the reaction with iodic acid to be described.
An alkaline solution of permanganate, iodic acid, and sodium amalgam, are all without influence on an alcoholic solution of cantharidin.
Other substances, however, also set free iodine from iodic acid, and it has, therefore, been proposed to distinguish morphine from these by the after addition of ammonia.
The chemical reaction by which the iodine is liberated from this compound is a complicated one, depending on the fact that sulphurous acid acts upon iodic acid, setting iodine free.
Iodic acid, a monobasic acid, consisting of iodine with three parts of oxygen and one of hydrogen.
With iodine compounds, iodic acid is likely to be formed, and hence the solution must be reduced with sulphurous acid before precipitation with silver nitrate.
This acid is not so poisonous as hydriodic oriodic acids.
Other leaves in iodic acid, diluted to the same degree, showed after 2 hrs.
But it is most important to turn attention to the fact that iodic acid is easily and directly formed by the action of oxidising substances on iodine.
Thus, for instance, strong nitric acid directly converts iodine into iodic acid, whilst it has no oxidising action on chlorine.
The iodic acid thus formed acts on a further quantity of the potassium chlorate, sets a portion of the chloric acid free, and in this manner the action is kept up.
Iodine may even be disengaged from hydriodic acid by the action of iodic acid, &c.
In decomposing (at 200°) or acting as an oxidiser, periodic acid first gives iodic acid, but it may also be ultimately decomposed.
Even ozone or a silent discharge passed through a mixture of oxygen and iodine vapour is able to directly oxidise iodine[82] into iodic acid.
As water reacts on these substances, forming iodic acid and iodine, they have to be prepared from dry iodine and chlorine.
Pure strychnia is not changed in color when treated with iodic acid or with either of the strong mineral acids; but as this alkaloid generally contains brucia, nitric acid reddens it.
The iodic acid should be previously tested to ascertain its purity, as it occasionally contains free iodine.
Another often successful method of preventing the onset of symptoms of poisoning is to administer small doses of ammonium carbonate with the drug, thereby neutralizing the iodic acid which is liberated in the stomach.
The trichloride, ICl3, results from the action of excess of chlorine on iodine, or from iodic acid and hydrochloric acid, or by heating iodine pentoxide with phosphorus pentachloride.
It is completely oxidized to iodic acid when boiled with fuming nitric acid.
These are the Iodates of the present day; but Davy, it would seem, resisted the conviction of Iodic acid being an oxy-acid, upon the same grounds that he opposed the views of M.
Serullas[19] has lately shown that the crystalline bodies of Davy are nothing more than the iodic acid, which being insoluble in acids, is necessarily precipitated by them.
Its principal compounds with oxygen are the iodic and periodic anhydrides.
Iodic acid added to their solutions turns them yellowish brown, by setting iodine free, and the liquid forms a blue compound with starch.
Iodic acid is used as a test for morphia and sulphurous acid.
Iodic acid is a crystalline solid, white or yellowish-white; it is decomposed into oxygen and iodine by a heat of about 450 deg.
In the circular which was wrapped with the bottle the wording of the formula differs somewhat from the foregoing, “iodic acid” of the label being replaced by “hydro-iodic acid.
Iodic Acid (equal to 7-125 Grain of Iodine) in two fluid drachms.
Iodic acid and its salts were absent, although claimed by the formula to be present.
The iodic acid test is very delicate, but requires great care, and may be used in the presence of organic matter.
The "mother-water" at some of the refineries is very rich in iodic salts, and is supposed to contain much muriate of lime.
Iodate of potassa, a salt composed of iodicacid and potassa, when mixed with sulphur, and struck with a hammer, will detonate, in consequence of the decomposition of the iodic acid.
Hence chloric acid is more readily decomposed by inflammable bodies than iodic acid, and iodic acid, sooner than sulphuric acid.
Iodine is a particular substance, which has the property not only of combining with oxygen and hydrogen, forming iodic and hydriodic acid, but also with various bases constituting a class of bodies, called iodides.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "iodic" in a variety of sentences. We hope that you will now be able to make sentences using this word.
