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Alkaline   /ˈælkəlˌaɪn/   Listen

Relating to or containing an alkali; having a pH greater than 7.  Synonym: alkalic.

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"Alkaline" Quotes from Famous Books

... few illustrations must be given. In chemistry it is seen in the facts, that the dividing of matter into the four elements was ostensibly based upon the single property of weight; that the first truly chemical division into acid and alkaline bodies, grouped together bodies which had not simply one property in common, but in which one property was constantly related to many others; and that the classification now current, places together in groups supporters of combustion, metallic and non-metallic bases, ...
— Essays on Education and Kindred Subjects - Everyman's Library • Herbert Spencer

... leave the inner fibre of fibroin; but they are not so good for ungumming silk as soap solutions are, as the fibre after treatment with them is deficient in whiteness and brilliancy. Silk dissolves completely in hot basic zinc chloride solution, and also in an alkaline solution of copper and glycerin, which solutions do not dissolve vegetable fibres or wool. Chlorine and bleaching-powder solutions soon attack and destroy silk, and so another and milder agent, namely, sulphurous acid, is ...
— The Chemistry of Hat Manufacturing - Lectures Delivered Before the Hat Manufacturers' Association • Watson Smith

... immediately after being cut from the vines, is either dipped in clear water to first rinse it of particles of dust and other foreign matter, or it is taken direct to the scalder and immersed in a boiling alkaline mixture called 'legia' (lye) until the grapes show an almost imperceptible cracking of the skin, the operation consuming perhaps from one-fourth to one-half of a minute. This dipping calls for skill on the ...
— Manual of American Grape-Growing • U. P. Hedrick

... and other salts of the organic acids in fruits tend to keep the blood properly alkaline. Where there is a tendency to the deposition of uric acid in the body, they hinder its formation. Citric, tartaric, malic and other organic acids exist in fruits in combination with potash and other bases, as well as ...
— The Chemistry of Food and Nutrition • A. W. Duncan

... importance to the people of those parts as an article of fuel, because the tree grows where other wood is scarce. It is even considered by the sugar-refiners as the best for their purpose, since its ashes, possessing highly alkaline properties, are more efficient than any other in purifying the boiling juice of the sugar-cane. The leaves of this beautiful tree, when pressed, emit a strong aromatic smell; and a very curious property ascribed to it by the more ignorant people of the mountains will be illustrated ...
— Popular Adventure Tales • Mayne Reid

... I have just mentioned to you—and then finding those extraordinary anomalies, as in the case of the mercury bath and the milk, he set himself to work to discover their nature. In the case of milk he found it to be a question of temperature. Milk in a fresh state is slightly alkaline; and it is a very curious circumstance, but this very slight degree of alkalinity seems to have the effect of preserving the organisms which fall into it from the air from being destroyed at a temperature of 212 degrees, which is the boiling ...
— The Method By Which The Causes Of The Present And Past Conditions Of Organic Nature Are To Be Discovered.—The Origination Of Living Beings • Thomas H. Huxley

... did not flourish in the alkaline soil of the Bad Lands, the fundamental American principle of orderly government, based on the consent of the governed, slowly and with many setbacks took root. The town of Medora itself began to sober down. Joe Ferris was a rock of defense for law and order. In disputes, ...
— Roosevelt in the Bad Lands • Hermann Hagedorn

... stickiness, and will hold any powder that may be passed over it, thus producing a very clear image of the drawing. The coating being excessively thin, the little moisture it holds and the powder applied suffice to break its continuity, especially if the powder be slightly alkaline. If the rest of the surface were sufficiently resisting, the plate might be bitten at once; but light alone is not enough to produce complete impermeability: the action of heat must be combined with it. The plate is, therefore, placed on ...
— Scientific American Supplement, No. 312, December 24, 1881 • Various

... plains like the waves of the sea, covered with grass quite dried up, a few flowers, and a bee-shaped cactus. The heat was very oppressive, a hot sirocco, wind blowing which; obliged us to keep our windows shut on account of the fine alkaline dust. E—— had her window open last night, and awoke this morning to find herself in ...
— A Lady's Life on a Farm in Manitoba • Mrs. Cecil Hall

Words linked to "Alkaline" :   amphoteric, alkaline-loving, basic, chemical science, saltlike, alkalescent, chemistry, acidic, alkalinity, alcalescent, base-forming

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