ammoniac


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am·mo·ni·ac

(ă-mō'nē-ak),
A gum resin from a plant of western Asia, Dorema ammoniacum (family Umbelliferae); used internally as a stimulant and expectorant, and externally as a counterirritant plaster.

ammoniac

(ə-mō′nē-ăk′)
n.
A strong-smelling gum resin from the stems of a plant (Dorema ammoniacum) of western Asia, formerly used in perfumery and in medicine as an expectorant and a stimulant. Also called gum ammoniac.
References in periodicals archive ?
Wicks and Randall (2002) showed that in fish feed, it increases the ammoniac level in plasm, in comparison to the observed level in water, nevertheless in this experiments the fish survived.
These data are virtually identical to PDF 78-625 which is the calculated powder pattern for Tl([Cl.sub.0.78][Br.sub.0.22]) (Popova et al., 1966) and, somewhat surprisingly, to sal ammoniac, N[H.sub.4]Cl (PDF 7-7), which is isostructural with lafossaite.
Under the new process to be introduced at the plant, freon will be replaced with ammoniac and carbon gas.
Furthermore, cation-exchange columns must be eluted with ammoniac methanol to recover gabapentin, and the ammonia must be completely removed by evaporation before derivatization with OPA.
According to the information available, the products and quantities present at the Toulouse plant were 6,300 tonnes of liquid ammoniac, 100 tonnes of liquid chlorine, 1,500 tonnes of oxidising substances, 6,000 tonnes of solid ammonium nitrate, 30,000 tonnes of solid fertilisers and 2,500 tonnes of methanol.
Just such a twinned dodecahedron of sal ammoniac is pictured in Dana's System of Mineralogy (Palache et al., 1951).
Hunayn ibn Ishaq (808-873 or 877): "For a flabby uvula (lahat mustarkhiya), Hunayn ibn Ishaq prescribed taking the flesh of a sour watermelon, Yemenite alum, and sal ammoniac, one part of each; mixing it, putting a little of it when it is sticky on a spoon, and placing it on the uvula, for it will raise the uvula."(103) For pain in the hips he recommended "taking one part sulphur and one part olive oil, mixing these well in a mortar, and smearing them on the painful spot."(104)
Aimed at an annual output of 1.7 million tons of urea and ammoniac, the plant is being constructed with IRR2tr of investment and proceeds 0.47% per month.
Urea, ammoniac, pistachio, date, fruits and saffron were among major Iranian products exported to the above mentioned countries in the first 9 months of the current fiscal year (started on March 20, 2009), Hosseini added.
It sets national emission ceilings for four pollutants - sulphur dioxide, nitrogen oxide, volatile organic compounds and ammoniac - and sets the long-term objective for 2020 of cleaner air, or more precisely, "protecting people against the health risks caused by air pollution".
The ion-exchange matrix of the solid-phase cation-exchange column (ICT ISOLUTE; 500 mg, 6 mL) was activated by washing three times with 5 mL of ammoniac methanol (7.5 mL of concentrated ammonia, 67.5 mL of water, 25 mL of methanol), once with 2.5 mL of potassium hydroxide in methanol (1 g/L), and once with 2.5 mL of water.