Ammonia aqua solutions

United States Pharmacopeia stronger ammonia water ammonia test solution normal (1 N) aqua ammonia chemically pure technical, Bh°... 

Aqua Ammonia. Aqua ammonia is a solution of 23% ammonia (20% nitrogen) and water. This allows for a reduction of ammonia vapor pressure and thus easier storage and handling capabilities. However, this greatly increases the amount of storage necessary and complicates the handling requirements. The solution is applied similarly to anhydrous ammonia but at a more shallow depth of 8—12 cm. In the United States, less than 1% of the nitrogen fertilizer is delivered in this manner. 

J Can recall the action of aqueous sodium hydroxide and ammonia on solutions of their aqua ions. 

Synonyms/Trade Names Anhydrous ammonia. Aqua ammonia. Aqueous ammonia [Note Often used in an aqueous solution.] ... 

Synonyms Ammonia aqua Ammonia aqueous Ammonia solution Ammonia solution, strong Ammonia water Aqua ammonia Aqua ammonium Aqueous ammonia Spirit of Hartshorn Strong ammonia solution... 

The term fluid fertilizers as used in this chapter refers to fertilizers such as anhydrous ammonia, aqua ammonia, nonpressure nitrogen solutions (28% to 32% N), liquid mixed fertilizer, and suspensions. Production of anhydrous ammonia, urea, and ammonium nitrate are presented in other chapters however, the use of these materials to produce fluids and their application will be discussed in this chapter. 

The fluid fertilizer industry started emerging as a significant industry in the United States during the early 1960s. By 1965 fluid consumption amounted to more than 5 million tonnes and represented about 18% of all fertilizers consumed. Table 10.1 gives the yearly consumption of fluids (anhydrous ammonia + aqua ammonia + nitrogen solution -f- solution mixtures + suspensions) during the period 1965-93. 

Fertilizer Solutions Aqua Ammonia Nitrogen Solution (non-press)... 

In 1984, Tsupak and co.[64] synthesized 2-(l-adamantyl)benzimidazole (68) with 45% yield by substitution of sulpho group in benzimidazole-2-sulfonic acid with adamantly radical. The reaction was carried out in aqua acetonitrile solution. The adamantyl radical was obtained by oxidativ decarboxylation of adamantanecarboxylic acid with ammonia persulfate in silver nitrate aqua solution. 

The chemical resistance of PTFE is almost universal It resists attack by aqua regia, hot fummg nitnc acid, hot caustic, chlorine, chlorosulfonic acid, and all solvents. Despite this broad chemical resistance, PTFE is attacked by molten alkali metals, ammonia solutions of such metals, chlorine trifluoride, and gaseous fluonne at elevated temperature and pressure PTFE swells or dissolves m certam highly fluonnated oils near its melting point. Specific lists of chemicals compatible with PTFE are available [/.8]... 

When the weak aqua enters the ahsorher, it flashes or is expanded through a control valve from about a column pressure of 214.2 psig to the absorber pressure of 18 psig. At equilibrium for this 25.8% ammonia solution and at 18 psig, the temperature is 138°F (Figure 11-17), and the liquid enthalpy is 49 Btu/lb. 

Jennings, B. H. and F. P. Shannon, Tables of the Properties of Aqua-Ammonia Solutions, Part 1, Science and Technology Series No. 1, Lehigh University Bethlehem, PA, (1938). 

Anhydrous ammonia is a colorless gas with a pungent odor, bp -33 °C. It can be liquefied at 25 °C under 175 psi. The gas is usually shipped as a liquid under pressure. It is very soluble in water. The water solution can be called ammonia water, aqua ammonia, ammonium hydroxide, or sometimes just ammonia misleadingly. 

D-Threose diacetamide. (Aqua ammonia.) Thirty grams of tetraacetyl-o-xylononitrile was mixed with 300 ml. of concentrated aqua ammonia (28-29 %) and warmed on a water bath until the solid was all dissolved, and then allowed to stand for three hours. The solution was concentrated in vacuo to a thick sirup, which was dissolved in aqua ammonia and reconcentrated. The final thick sirup was dissolved in absolute ethanol and ether added to the point of turbidity. After forty-eight hours in a refrigerator the crystals which had formed were collected yield, 16.5 g. (78%). They were recrystallized by dissolution in two volumes of warm 75 % ethanol, filtration through carbon and the addition of an equal volume of absolute ethanol. The compound crystallized slowly, forming clear, sharp needles or prisms in resets, m. p. 165-167. ... 

Yellow hexagonal crystals odorless density 7.14 g/cm decomposes slowly in the presence of moisture or decomposes on heating insoluble in water, alcohol and ether also insoluble in dilute acids soluble in aqueous solutions of potassium-, or sodium cyanide, ammonia, and aqua regia. 

Nitrito-pentammino-iridium Chloride, [Ir(NH3)5N02]Cl2, may be produced by treating dinitrito-tetrammino-iridium chloride with ammonia, or, in better yield, by acting upon aquo-pentammino-iridium chloride with excess of silver nitrite. It separates from aqueous solution on addition of hydrochloric acid in small colourless needles which arc very soluble in water and sparingly soluble in hydrochloric acid. It is stable, and scarcely acted on by boiling nitric acid or aqua-regia or moderately strong hydrochloric acid. 

Method 3. Place an amount of the sample, directed in the monograph, in a quartz or porcelain crucible, heat continuously, gently at first, and then increase the heat until incineration is completed. After cooling, add 1 mL of aqua regia, evaporate to dryness on a water bath, moisten the residue with 3 drops of hydrochloric acid, add 10 mL of hot water, and warm for 2 minutes. Add 1 drop of phenolphthalein TS, add ammonia TS dropwise until the solution develops a pale red color, add 2 mL of dilute acetic acid, filter if necessary, wash with 10 mL of water, transfer the filtrate and washing to a Nessler tube, and add water to make 50 mL. Designate it as the test solution. 

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