Ethylenediamine forms from 1,2-dichloroethane and aqueous ammonia. Hexamethylenetetramine forms readily from aqueous ammonia and formaldehyde. In industry, aqueous ammonia can be used as a precursor to some alkyl amines, although anhydrous ammonia is usually preferred. Commonly available ammonia with soap added is known as 'cloudy ammonia'. It may be sold plain, lemon-scented (and typically colored yellow), or pine-scented (green). In addition to use as an ingredient in cleansers with other cleansing ingredients, ammonia in water is also sold as a cleaning agent by itself, usually labeled as simply 'ammonia'. Because aqueous ammonia is a gas dissolved in water, as the water evaporates from a window, the gas evaporates also, leaving the window streak-free. In contrast to anhydrous ammonia, aqueous ammonia finds few non-niche uses outside of cleaning agents.Дiluted (1вЂ“3%) ammonia is also an ingredient of numerous cleaning agents, including many window cleaning formulas. Upon warming saturated solutions, ammonia gas is released. At higher temperatures, the molarity of the saturated solution decreases and the density increases. At 15.6В вЊ (60.1В вЏ), the density of a saturated solution is 0.88В g/ml and contains 35.6% ammonia by mass, 308В grams of ammonia per litre of solution, and has a molarity of approximately 18 mol/L. Ammonia solutions decrease in density as the concentration of dissolved ammonia increases. Like other gases, ammonia exhibits decreasing solubility in solvent liquids as the temperature of the solvent increases. In aqueous solution, ammonia deprotonates a small fraction of the water to give ammonium and hydroxide according to the following equilibrium:

Ammonia cleaning solution