ammoniac


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ammoniac

or

gum ammoniac

(əmō`nēăk'), yellowish substance with a sickening, bitter taste, obtained from the milky exudate of the injured stem of a plant (Dorema ammoniacum) found in Iran, India, and S Siberia. It is a gum resin, soluble in alcohol and ether. It is used in industry in the manufacture of porcelain cements and in medicine as an expectorant. When gum ammoniac is distilled, it yields a liquid, oil of ammoniac.

ammoniac

[ə′mōn·ē‚ak]
(inorganic chemistry)
(materials)
A gum resin obtained from the stems of the ammoniac plant; used in medicine, perfume, plaster, concrete, and adhesive.
References in periodicals archive ?
According to planning, a fourth project is planned to become operational at Shiraz Petrochemical Plant, similar to the third unit (3,250 tons of ammoniac and 2,050 tons of urea).
Ammonium sulphate is efficient ammoniac fertilizer, is widely used in agriculture under grain, commercial and vegetable crops both for a preseeding treatment and for top-dressing.
Ammoniac is highly soluble in water and, beyond that, the presence of nitric and sulfuric acids in water acts as a catalyzer for the solution process [36].
special ammoniac, vertical type, plate freezer, type dsi v4 24/100 c spec, or similar 3 pcs.
A man suggests that he smear its behind with sal ammoniac. The smart from the ointment makes the donkey sprint towards Nasreddin's house.
They reported that in Rachycentron canadum juveniles erratic and lethargic swim arised when the fish were exposed to ammoniac concentration of 0.80 N[H.sub.3] [L.sup.-1].
Within the same context of environmental protection and the fight against atmospheric pollution, we give instructions for the setting up of a new ammoniac emission processing unit to process the DAP Ghannouche plant emissions and to fight against atmospheric sulfur pollution at the port of GabE s.
In solution, ammonium exists as a positively charged ammonium ion, whereas in the gas phase, charge-neutral ammoniac is readily lost, leading to formation of a reduced alkali ion-DNA adduct.
Lafossaite occurs as a drusy coating of tiny crystals sporadically distributed over the irregular surface of a single sample (6 x 7 x 9 cm) comprised of fragments of partly altered (by fumarolic gases) ash and lapilli cemented together by other sublimate minerals (i.e., silica, hieratite, sal ammoniac and other unidentified phases).
The $220 million plant, due to come on stream in 1998, will have a daily production capacity of 1,300 tonnes of fertilizer, 1,200 tonnes of urea and 955 tonnes of ammoniac.
Ali Ashraf Afkhami, managing director of BIM, said the bank has a very positive experience in petrochemical investments and is currently in talks for finalization of funding of a number of projects for production of methanol, ammoniac and propylene, shana reported.
Methanol, propane, butane, ethylene, benzene, ammoniac, paraxylene, condensate, mono-ethylene glycol, raffinate, sulphur, and o-Xylene were among major products exported during the mentioned period, he said.