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Iodine   Listen
noun
Iodine  n.  (Chem.) A nonmetallic element, of the halogen group of atomic number 53, occurring always in combination, as in the iodides. When isolated it is in the form of dark gray metallic scales, resembling plumbago, soft but brittle, and emitting a chlorinelike odor. Symbol I. Atomic weight 126.90. If heated, iodine volatilizes in beautiful violet vapors. Note: Iodine was formerly obtained from the ashes of seaweed (kelp or varec), but is now also extracted from certain natural brines. In the free state, iodine, even in very minute quantities, colors starch blue. Iodine and its compounds are largely used in medicine (as in liniments, antisyphilitics, etc.), in photography, in the preparation of aniline dyes, and as an indicator in titration.
Iodine green, an artificial green dyestuff, consisting of an iodine derivative of rosaniline; called also night green.
Iodine scarlet, a pigment of an intense scarlet color, consisting of mercuric iodide.
Iodine yellow, a brilliant yellow pigment, consisting of plumbic iodide.






Collaborative International Dictionary of English 0.48








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"Iodine" Quotes from Famous Books



... he gathered, and saw a very few ovules, as he thinks, on the large and mostly rudimentary placenta. I shall be most curious to hear whether the other pod produces a good lot of seed. He says he regrets that he did not test the ovules with chemical agents: does he mean tincture of iodine? He suggests that in a state of nature the viscid matter may come to the very surface of stigmatic chamber, and so pollen-masses need not be inserted. This is possible, but I should think improbable. Altogether the case is very odd, and I am ...
— More Letters of Charles Darwin Volume II - Volume II (of II) • Charles Darwin

... more than once kept you informed of the inquiry concerning the effects of iodine on the human system, which has so long engaged the attention of several eminent chemists on the continent; and now have to report something further by M. Fourcault, whose communication thereupon to the Academie is entitled, ...
— Chambers' Edinburgh Journal - Volume XVII., No 422, New Series, January 31, 1852 • Various

... any distance on tour should carry some sort of first-aid equipment. It need not be elaborate, but should include bandages, a clean dressing (a first field dressing is the best and most compact), iodine and adhesive plaster, and some vaseline or boracic ointment. Even a scratch will go on bleeding on a cold day and be very tiresome. Accidents are miraculously few and far between in Ski-ing, considering the falls and the large number of people who ski. But they happen occasionally, and ...
— Ski-running • Katharine Symonds Furse

... employed in volumetric solutions are potassium bichromate, potassium permangenate, potassium ferricyanide, iodine, ...
— An Introductory Course of Quantitative Chemical Analysis - With Explanatory Notes • Henry P. Talbot

... surrounded by his companions, who were busy disinfecting and binding up the wounds that he had received when the china cabinet had collapsed upon him. One of the men poured the tincture of iodine onto a hand held fast by a friend. Two others were rolling a bandage about his head, while the patient, far from subdued, waved the only free but much enveloped hand that he possessed, beating time to the air that he was literally shouting and in whose rather bald verse the station ...
— With Those Who Wait • Frances Wilson Huard

... upon the fact that the protoplasm of some bacteria permits aniline gentian violet and Lugol's iodine solution, when applied consecutively, to enter into a chemical combination which results in the formation of a new blue-black pigment, only very sparingly soluble in absolute alcohol. Such organisms are said to "stain by Gram," or to ...
— The Elements of Bacteriological Technique • John William Henry Eyre

... tertius, a dear little twelve-year-old mother's darling—'I had an awful hack on the knee. I've been to the Matron about it and she gave me some iodine. I've been rubbing it in all day. I thought that would ...
— A Diversity of Creatures • Rudyard Kipling

... From all sides surges testimony to the importance of physical conditions as the basis of mental and social life. According to many, it is by the absence of a few grains of iodine from the water of drinking fountains, that the people of the Alps are turned into cretins. According to others, it is by the presence of a few grains of ergot in the bread, that the people of ...
— The Education of American Girls • Anna Callender Brackett

... the Htel Negre-Coste. Aix, formerly the capital of Provence, was founded 120 B.C. by the Consul Sextius Calvinus around the thermal springs, which he himself had discovered. The temperature of the water is 95 F., and the ingredients, iron and iodine, the carbonates, sulphates, and chlorides of soda and magnesia, together with an organic bituminous matter strongly impregnated with glairine. The establishment is situated at the extremity of the Cours ...
— The South of France—East Half • Charles Bertram Black

... warm water and Castile-soap; after which, wipe the bag dry, and dress with citrine ointment. The preparations of iodine have also been recommended, and they are ...
— Cattle and Their Diseases • Robert Jennings

... is determined by incineration, farina by the iodine test, water by drying at 210 deg., and molasses by getting rid of it by re-crystalization from alcohol, as also by the color and moisture of ...
— The Commercial Products of the Vegetable Kingdom • P. L. Simmonds

... one over on us," he exclaimed, while the doctor was dabbing with iodine and tying up his wounded arm, "but I think he's got another guess coming. You ought to have seen our officer," he added. "The first one in the bunch to be 'at 'em.' With a bayonet, too, mind you. Grabbed one from a private as he ran ...
— The Sky Pilot in No Man's Land • Ralph Connor

... more," said Dr. Lett. "I would like to have the co-operation of the Interstellar Medical Service. I am a citizen of this planet and not without influence. But I would like to have my work approved by the Med Service. I submit that in some areas on ancient Earth, iodine was put into the public water-supply systems to prevent goiters and cretinism. Fluorine was put into drinking water to prevent caries. On Tralee the public water supply has traces of zinc and cobalt added. These are necessary trace ...
— The Hate Disease • William Fitzgerald Jenkins

... of radiation from the weapon's "fallout"—the coral rock, soil, and other debris sucked up in the fireball and made intensively radioactive by the nuclear reaction. One radioactive isotope in the fallout, iodine-131, rapidly built up to serious concentration in the thyroid glands of the victims, ...
— Worldwide Effects of Nuclear War: Some Perspectives • United States Arms Control and Disarmament Agency

... dextrin are simultaneously produced, and between the years 1872 and 1876 Cornelius O'Sullivan definitely proved that the sugar produced was maltose. When starch-paste, the jelly formed by treating starch with boiling water, is mixed with iodine solution, a deep blue coloration results. The first product of starch degradation by either acids or diastase, namely soluble starch, also exhibits the same coloration when treated with iodine. As degradation proceeds, and the products become more and more soluble and diffusible, ...
— Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 - "Brescia" to "Bulgaria" • Various

... and syntheses. They made ammonia water; they combined weights; they experimented in acids, bases and salts; they produced explosions; they almost set the house on fire with their experiments in hydrogen; they tested iodine ...
— The Little Gold Miners of the Sierras and Other Stories • Various

... with ammonia fumes will restore the color. The presence of calcium, chlorides, or sulphates in the water in which the paper is soaked will afford some indication of bleaching powder or a sulphite having been used. Potassium ferro-cyanide will detect any iron remaining in the paper. Exposure to iodine vapor often affords evidence of chemical treatment, and other methods of ...
— Forty Centuries of Ink • David N. Carvalho

... in the rock on the shore, west of the Punta fort, along the Calle Ancha del Norte. Here water is introduced fresh from the Gulf Stream, sparkling and invigorating, and characterized by much more salt and iodine than is found in more northern latitudes. It is the purest sea-bathing to be found in any city that we know of, refreshing and healthful, producing a sensation upon the surface of the body similar to that of sparkling soda-water on the palate. The island abounds in ...
— Due South or Cuba Past and Present • Maturin M. Ballou

... stain on violet silk: Brush the discoloration with tincture of iodine, then saturate the spot well with a solution of hyposulphite of soda, and dry gradually. This restores the ...
— The Whitehouse Cookbook (1887) - The Whole Comprising A Comprehensive Cyclopedia Of Information For - The Home • Mrs. F.L. Gillette

... of small boys in the outcaste Sunday school that gives preliminary baths. On this particular Sunday, however, she starts out armed not with the picture roll and lyric book, but with a motley collection of soap and clean rags, cotton swabs and iodine and ointment. ...
— Lighted to Lighten: The Hope of India • Alice B. Van Doren



Words linked to "Iodine" :   saltwater, iodize, radioactive iodine excretion test, i, chemical element, iodine-131, tincture, halogen, brine, element, iodin, iodine-125, iodise, tincture of iodine, atomic number 53, seawater, radioactive iodine uptake test



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