Ammonia Specifications

Synthesis L-diiodo thyronine (1.05 g) is dissolved in ammonia (specific gravity 0.880)... 

Even with lithium- or sodium amide in liquid ammonia, specific deproton anon at the ethynyl group is expected, but in this polar solvent subsequent nucleophilic substitution of Br ... 

Synthesis L-diiodo thyronine (1.05 g) is dissolved in ammonia (specific gravity 0.880) (40 ml) and methanol (40 ml) and iodinated slowly with shaking with N-iodine in KI solution at room temperature. After iodination,... 

Most industrial uses of ammonia require a higher-purity level of product than agricultural uses. Typical ammonia specifications are shown in Table 8.474. 

Sulphocyanide of Ammonium. Saturate 2 parts of common water of ammonia (specific gravity 0.950) with sulphuretted hydrogen and add 6 ports of the same ammonia. To this mixture add 2 parts of sulphur, and the product of the distillation of 6 parts of pnissiate of potash, 3 of sulphuric acid, and 18 of water. Digest till the sulphur is no longer acted on, and the liquid becomes yellow. Boil tho liquid till it becomes colorless, filter, evaporate, and crystallize. 

Pieste s Toothache Essence. This is laudanum mixed with about twice its volume of liquor of ammonia specific gravity. 960. Allied on lint, like other toothache drops, it often rapidly relieves the pain. 

The convulsive state is aggravated by increasing concentration of ammonia ions (Raable, 1981), an excess of which can lead to redistribution of K" " and Cl ions, disturbances of neuronal depolarization and hyperpolarization, and impairment of postsynaptic inhibition. The neuron dysfxmctions observed result in encephalopathy, ataxia, convulsions, and coma (lies and Jack, 1980 Raable and Lin, 1983 Xiong and Stringer, 1999). Normally, ammonia specifically promotes GSH synthesis and export from astrocytes and increases its extracellular... 

Materials. Naturally occurring sodium hectorite from Hector, California, with a particle < 2 Xm was obtained from the source clay mineral repository. University of Missouri, Columbia. The cation exchange capacity, as determined by the displacement of ammonia from an ammonium saturated sample using NaOH and an ammonia specific electrode, was 73 meq per 100 grams of air-dried clay. All reagents and solvents used in this work were obtained from Chemical Dynamics Corporation and Aldrich Chemical Company and were used without further purification. 

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