Ammonia solubilities

White powdery solid density 4.258 g/cm decomposes on heating below 500°C insoluble in water and liquid ammonia soluble in acid (with reaction). 

White orthorhombic crystals density 6.66 g/cm melts at 373°C forms a horn-like mass on solidification vaporizes at 916°C decomposes slowly on exposure to light sparingly soluble in cold water (4.55 g/L at 0°C and 8.44 g/L at 20°C, respectively) moderately soluble in boiling water (44. Ig/L at 100°C) Ksp 6.60x10 at 25°C insoluble in alcohol slightly soluble in ammonia soluble in alkalies and also in sodium or potassium bromide solutions. 

Colorless orthorhombic crystals refractive index 1.804 Moh s hardness 3-3.5 density 6.60 g/cm decomposes on heating at 315°C practically insoluble in water (1.1 mg/L at 20°C) Ksp 1.46xlCLi3 at 25°C also insoluble in alcohol and ammonia soluble in acids and alkahes. 

White cubic crystals refractive index 1.955 density 4.076 g/cm melts at 449°C vaporizes around 1,180°C highly soluble in water (165 g/lOOg at 20°C), solubdity greatly increases in hot water (433g/100g at 80°C) also very soluble in methanol (343 g/lOOg at 20°C) and ammonia soluble in acetone (42.6g/100g at 18°C). 

Grayish-white hexagonal crystals density 3.95 g/cm decomposes at 320°C insoluble in water, alcohol or dilute acids moderately soluble in concentrated ammonia soluble in concentrated boding nitric acid also soluble in alkali cyanide solutions. 

Another, and a far more serious loss, is incurred by keeping manure too long unprotectad from the weather, not, howover, by the volatilization of ammonia, but hy the removal of salts of ammonia, soluble nitrogenized organic matters, and valuable mineral salts by rain ... 

AgN03, white precipitate—Ag4Fe(CN)6, insoluble in dilute HN03 and in ammonia, soluble in KGN. 

The reaction between anhydrous liquid ammonia and ReOCl4 at — 33°C affords broWn insoluble [ReO(NH2)4]2 together with an ammonia-soluble species formulated (tentatively) as NH4[ReO(NH2)4Cl]. The IR spectrum of [ReO(NH2)4]2 displays a r(Re—O—Re) mode at 830 cm thereby supporting the presence of a polymeric [—O—Re—O—Re—] chain system.434... 

Problems associated with cold weather operation. Low temperature increases the ammonia solubility making the ammonia more difficult to release from the liquid to the gaseous phase. In severe winter conditions, fogging and icing may occur, which hamper the tower operation. 

Properties Red crystals. D 4.13, mp (decomposes). Insoluble in water and ammonia soluble in acids. The cobalt carbonate of commerce is usually the basic salt (see following entry). 

Transparent crystalline needles, sparingly soluble in water, somewhat soluble in dilute hydrofluoric acid, soluble in hydrochloric and nitric acids and ammonia. Solubility in water 5 10 moles/liter. 

Formula weight 190.45. Pure white crystalline powder. M.p. 605°C, b.p. 1336°C d 5.63. Quite stable in light and air, melts without decomposition in high vacuum and in a stream of oigrgen-free Ng. The solidified melt Is clear and colorless (impure materials yield dark melts). Insoluble in HgO soluble in acids and aqueous ammonia soluble in alkali iodides. Heat of formation (25°C) — 16.2 kcal./mole. 

White, amorphous powder or shiny, rhombic prisms. Insoluble in HaO and alcohol. Soluble in alkali cyanides and aqueous ammonia soluble in dilute acids (evolution of HCN). Decomposes at 800 C d 1.852. Crystal structure type C3 (CuaO type). 

Ammonia solubility in aqueous solution is very high (w 10 1/1) and the mass transfer... 

In liquid ammonia soluble amides act as bases, which may formally be compared with hydroxides in water. Likewise imides such as Pb(NH) are formally analogous to oxides in water which by addition of the solvent may display basic properties. In liquid ammonia a third type of potential base is known, namely nitrides. 

All carbonates are insoluble except those of sodium, potassium, and ammonia. Soluble salts are prepared by crystallization from an aqueous solution. Insoluble salts are prepared by double decomposition. 

Figure 12-2. Ammonia solubility in water. (Reproduced with permission from reference 8. Copyright 1997, American Chemical Society.)...

Many 7i-cyclopentadienyl complexes may be prepared from the reaction of alkali metal cyclopentadienides with ammonia-soluble transition metal salts such as nitrates and thiocyanates in liquid ammonia (2-30). The amine complexes, [M(NH3) ] (C5H5)2, lose ammonia when heated in vacuo, and the uncharged dicyclopentadienyl complexes of iron, cobalt, nickel, chromium, and manganese are obtained. 

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