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 ?
It felt that proposing a 27% reduction of ammoniac emissions was a strong blow to the agricultural world, which has already been badly affected by high production costs.
Beguin cite une composition de mordant de Callot, compose par "Vert-de-gris (40g), vinaigre fort (80g), sel ammoniac (40g), sel marine (40g), alun (10g), eau (160 g)".
Nitrogen-phosphoric fertilizers on the basis of ammoniac petre and washed dry concentrate of phosphorites of Central KyzylKum," Uzb.
Mean annual structure of water river Neris and recirculated water in shop of ammoniac production of joint-stock company "ACHEMA" River Turnaround Parameter Neris cycle of shop Alcalinity, mg.
We have shown that when Prussian blue is dissolved in ammoniac solutions, it produces hydrogen cyanide, a substance that could have played a fundamental role in the creation of the first bio-organic molecules, as well as other precursors to the origin of life, such as urea, dimethylhydantoin and lactic acid," said Marta Ruiz Bermejo, lead author of the study.
Nitrogen and foul/smelling ammoniac are also released.
AaAa Efforts made by both countries have recently allowed for taking several decisions like the opening the first Moroccan cultural centre (over 100,000 Moroccans live in Libya), and the signing of a memorandum of understanding between Morocco's state-owned phosphate company (OCP) and Libya-Africa Investment Portfolio for the construction of phosphoric acid, ammoniac and fertilizers production units.
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.
Kuiper an opponent, argued that the Saturnean rings consist not of the usual ice, but of ammoniac, upon which Kuiper's objections were been based, but subsequently retracted by him.
was determined as ammoniac nitrogen by the indophenol blue method, and absorbance of the solution was measured by a spectrophotometer at 670 nm.
In the second scenario, the contestant was required to choose which of halegene 'halogen lamp', ammoniac 'ammonia', ephemeride 'ephemeris' and vermicelles 'vermicelli' is feminine.
PVFCC and OCP have also agreed on plans for an ammoniac plant in Vietnam or a third country, the statement said, without providing a timetable for the project.