Fluoric acid, a compound of fluorine and hydrogen, is decomposed during this action, and is changed, by the union of its fluorine with silicon, into the silicated fluoric acid.
If the sodium atom passed one of its electrons to a fluorine atom, both would have the stable configuration of neon—2 and 8.
Fluorine with 1 electron in excess would become F⁻, a negatively charged ion.
Defn: Pertaining to, derived from, or consisting of, fluorine and boron.
Note: Fluorine unites with hydrogen to form hydrofluoric acid, which is the agent employed in etching glass.
Fluorine is a gas of slightly yellowish color, and can be condensed to a liquid boiling at -187° under atmospheric pressure.
A great many substances of this class are known; in fact, the oxides of all the common elements have been prepared, with the exception of those of fluorine and bromine.
It is used as the chief source of fluorine compounds, especially hydrofluoric acid.
These become still more emphasized as we pass through nitrogen and oxygen, until on reaching fluorine we have one of the strongest acid-forming elements.
But fluorine is an element of small atomic weight, and the one following it, sodium, breaks the regular order, for in it reappear all the characteristic properties of lithium.
The preparation of fluorine was finally accomplished by the French chemist Moissan by the electrolysis of hydrofluoric acid.
Fluorine does not form any oxides, neither does it form any oxygen acids, in which respects it differs from the other members of the family.
Thus sodium belongs with lithium and not with copper; fluorine belongs with chlorine and not with manganese.
When this solution was electrolyzed hydrogen was set free at the cathode and fluorine at the anode.
The affinity of the elements for hydrogen is in the inverse order of their atomic weights, fluorine having the strongest affinity and iodine the weakest.
Lepidolite | Colors the blowpipe flame crimson, from lithia; also | gives the fluorine reaction with microcosmic salt.
Chondrodite | Evolves fluorine in the glass tube, both when heated | alone and with microcosmic salt.
Should the fluorine contained in the substance be appreciable, the glass tube, when held up to the light, will be found to have lost its transparency, and to be very rough to the touch.
Fluorine also exists in the enamel of the teeth, and in the bones of some animals.
If heated for some time, it bubbles, gives off fluorine and becomes infusible.
The topaz is harder than quartz, as will be seen on reference to the "Hardness" table, and is composed of a silicate of aluminium, fluorine taking the place of some of the oxygen.
You know, it's impossible to keep some trace of fluorine from the air in the handling-machines, or even out on the orbiters, and it plays the devil with their lungs.
To have done so would have been instant death; the air was a mixture of free fluorine and fluoride gasses, the soil was metallic fluorides, damp with acid rains, and the river was pure hydrofluoric acid.
The hydrogen-fluorine combination is what passes for combustion here; the result is hydrofluoric acid, the local equivalent of water.
It sometimes appears combined with fluorine in chlorine trifluoride.
Fluorine is a pale greenish-yellow gas with a very sharp smell; its specific gravity is 1.
Only one compound of hydrogen and fluorine is known, namely hydrofluoric acid, HF or H2F2, which was first obtained by C.
The atomic weight of fluorine has been determined by the conversion of calcium, sodium and potassium fluorides into the corresponding sulphates.
The association with minerals containingfluorine and boron, and the intense alteration of the wall rocks, indicate that the temperature must have been very high.
Pertaining to, derived from, or consisting of, fluorine and boron.
The hydrogen-fluorine combination is what passes for combustion here: the result is hydrofluoric acid, the local equivalent of water.
As there is a limit to the amount of fluorine with which any base can combine, such a vessel would be proof against its solvent action.
Fluorine is the only element with which it will not combine.
Even when the point of a tube containing solid fluorine is broken off under liquid hydrogen, a violent explosion ensues.
When fluorine is delivered into an aqueous solution of hydriodic acid, each bubble as it enters produces a flash of flame, and if the fluorine is being evolved fairly rapidly there is a series of very violent detonations.
If fluorine is passed into the ordinary liquid acid, each bubble as it enters produces a flame in the liquid.
At 100°, however, fluorine gas appears to be without action on platinum.
Gaseous hydrobromic and hydriodic acids react with fluorine in a similar manner, with production of flame and formation of hydrofluoric acid.
The combustion of slightly warmed zinc in fluorine is particularly pretty as an experiment, the flame being of a most dazzling whiteness.
Gold becomes converted into a yellow deliquescent volatile fluoride when heated to low redness, and at a slightly higher temperature the fluoride is dissociated into metallic gold and fluorine gas.
If the fluorine is evolved in the midst of pure dry liquid bromine, the combination is immediate, and occurs without flame.
It will be remembered that, by passing a strong current of electricity through this liquid contained in a platinum apparatus, free gaseous fluorine was obtained at the positive pole and hydrogen at the negative pole.
If the fluorine is admixed with vapor of hydrofluoric acid, the reaction is much more vigorous, as if a fluorhydrate of the tetrafluoride, perhaps 2HF.
If the end of the tube delivering fluorine is placed in an atmosphere of hydrogen, a very hot blue flame, bordered with red, at once appears at the mouth of the tube, and vapor of hydrofluoric acid is produced.
Metallic calcium also burns in fluorine gas, forming the fused fluoride, and occasionally minute crystals of fluorspar.
Bromides and iodides are decomposed with even greater energy, and the liberated bromine and iodine burn in the fluorine with formation of their respective fluorides.
If the fluorine is in excess, a fuming gas is evolved, which gives up its excess of fluorine on collecting over mercury, and is soluble in water.
The jatos of the pushpots used the beryllium-fluorine fuel that had lifted the Platform and that filled the take-off rockets of Joe's ship.
They were wire-wound steel tubes lined with a very special refractory, with unstable beryllium andfluorine compounds in them.
Again, fluorineshows a great tendency to form double salts, which have no counterpart among the compounds formed by the other members of the family.
Compounds of fluorine and oxygen, and of bromine and oxygen, have not yet been isolated.
Chemists who assert that they have been able to obtain fluorine in the elementary condition, pronounce it to be a gas which possesses the colour of chlorine; but the experiments, as hitherto conducted, render that statement extremely doubtful.
Fluorine appears to thus fully confirm the predictions which have been made by chemists concerning its properties.
Moissau, after a long series of researches with the fluorides of phosphorus, and the highly poisonous arsenic trifluoride, has finally been able to liberate fluorine in the gaseous state from anhydrous hydrofluoric acid by electrolysis.
The element fluorine has at last been successfully isolated, and its chief chemical and physical properties determined.
According to him, the longer a bone has been buried, the greater is the percentage of fluorine found in it on analysis.
The French chemist has shown that when bones are buried in ordinary sediments they undergo changes which gradually cause the percentage of contained fluorine to increase.
In point of fact, it has been found that at the temperature of liquid hydrogen practically all chemical activity is abolished, the unruly fluorine making the only exception.
But again, how chances it that different atoms attract one another in such varying degrees, so that, for example, fluorine unites with everything it touches, argon with nothing?
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "fluorine" in a variety of sentences. We hope that you will now be able to make sentences using this word. Other words: ammonia; gas; nitrogen; oxygen; silver
