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Ammoniac   Listen
noun
Ammoniac, Gum ammoniac  n.  (Med.) The concrete juice (gum resin) of an umbelliferous plant, the Dorema ammoniacum. It is brought chiefly from Iran in the form of yellowish tears, which occur singly, or are aggregated into masses. It has a peculiar smell, and a nauseous, sweet taste, followed by a bitter one. It is inflammable, partially soluble in water and in alcohol, and is used in medicine as an expectorant and resolvent, and for the formation of certain plasters.



adjective
ammoniacal, Ammoniac  adj.  Of, pertaining, or containing ammonia, or possessing its properties; as, an ammoniac salt; ammoniacal gas.
Ammoniacal engine, an engine in which the vapor of ammonia is used as the motive force.
Sal ammoniac, the salt usually called chloride of ammonium, and formerly muriate of ammonia.






Collaborative International Dictionary of English 0.48








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"Ammoniac" Quotes from Famous Books



... illustrate the action of the crystallizing force by two examples of it: Nitre might be employed, but another well-known substance enables me to make the experiment in a better form. The substance is common sal-ammoniac, or chloride of ammonium, dissolved in water. Cleansing perfectly a glass plate, the solution of the chloride is poured over the glass, to which when the plate is set on edge, a thin film of the liquid adheres. Warming ...
— Six Lectures on Light - Delivered In The United States In 1872-1873 • John Tyndall

... articles of tin, iron, zinc, copper, and almost all other metals. Take 2 fl. ounces of muriatic acid, add zinc till bubbles cease to rise, add 1/2 a teaspoonful of sal-ammoniac and 2 ounces of water. Damp the part you wish to solder with this fluid, lay on a small piece of lead, and with a piece of hot iron or ...
— Young's Demonstrative Translation of Scientific Secrets • Daniel Young

... is covered with Chlorides, or combinations of chlorine with other substances, including rock salt, or chloride of sodium; sal-ammoniac from Vesuvius; fine chloride of copper, exhibiting beautiful crystals; and chlorides of silver and mercury. The two last cases in the room (60 and 60 A) contain samples of coal, bitumen, resins, and salts. Here will be found the honey-stone of ...
— How to See the British Museum in Four Visits • W. Blanchard Jerrold

... canning food in some tin cans, it is necessary to have a soldering outfit for properly closing them. This consists of a capping steel, a tipping iron, solder in small strips and in powder form, a small can of sal ammoniac, and a bottle of flux, which is a fluid that makes solder stick ...
— Woman's Institute Library of Cookery, Vol. 5 • Woman's Institute of Domestic Arts and Sciences

... August, 1907, the joints between the segments of the cast-iron lining were caulked with iron filings and sal ammoniac, mixed in the proportion of 400 to 1 by weight. With the air pressure balancing the hydrostatic head near the tunnel axis, it was difficult to make the rust-joint caulking tight below the axis against the opposing water pressure; this form ...
— Transactions of the American Society of Civil Engineers, vol. LXVIII, Sept. 1910 • James H. Brace, Francis Mason and S. H. Woodard


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