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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



... of misfortune, old Cesar had run a nail into his hoof and Madame Guix spent most of her time between injections of oxygen on the first floor, and iodine and flaxseed poultices in the stables. This of course meant that all errands outside the village must be made on bicycle, and George was "mustered into service." Towards noon on the 27th he made his first ...
— My Home In The Field of Honor • Frances Wilson Huard

... to what he had believed in half an hour before, as though ashamed even to recall it, he asked for iodine to inhale in a bottle covered with perforated paper. Levin gave him the bottle, and the same look of passionate hope with which he had taken the sacrament was now fastened on his brother, demanding from him the confirmation of the doctor's words ...
— Anna Karenina • Leo Tolstoy

... clinging to margin of the pileus and portions forming a delicate ring. When parts of the plant come in contact with white paper a blue stain is apt to be imparted to the paper, resembling the reaction of iodine on starch. This peculiarity has been observed also in the case of another species of Agaricus. The species is regarded with suspicion by some. I collected the plant also at Blowing Rock, N. C., in September, 1899. The caps of these specimens measure ...
— Studies of American Fungi. Mushrooms, Edible, Poisonous, etc. • George Francis Atkinson

... use of in the manufacture of chloroform and iodoform, as the chlorine or iodine which is produced in the electrolytic cell is allowed to act upon the alcohol or acetone under such conditions that chloroform or ...
— The Story Of Electricity • John Munro

... to these implements, a few reagents may be recommended for the simpler histological work. The most important of these are alcohol, glycerine, potash (a strong solution of potassium hydrate in water), iodine (either a little of the commercial tincture of iodine in water, or, better, a solution of iodine in iodide of potassium), acetic acid, and some staining fluid. (An aqueous or alcoholic solution of gentian violet or methyl violet is one of ...
— Elements of Structural and Systematic Botany - For High Schools and Elementary College Courses • Douglas Houghton Campbell

... from the proscribed test area, the vessel's crew and the islanders received heavy doses 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 ...
— Worldwide Effects of Nuclear War: Some Perspectives • United States Arms Control and Disarmament Agency

... daily in eight hours from Kronstadt. The season is very short, being over in August. Tusnad is said to contain one hundred springs of different kinds of water. I am not a water-totaller, so I did not taste all of them when I visited the place later on; but undoubtedly alum, iodine, and iron do severally impregnate ...
— Round About the Carpathians • Andrew F. Crosse



Words linked to "Iodine" :   iodine-125, tincture, radioactive iodine excretion test, antiseptic, iodinate, radioactive iodine test, element, saltwater, iodine-131, iodize, i, seawater



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