Ammonium+hydroxyde

Ammonium hydroxide is a solution of ammonia in water. It is denoted by the symbols NH3(aq). It is impossible to isolate samples of NH4OH, as these ions do not comprise a significant fraction of the total amount of ammonia except in extremely dilute solutions. Ammonia is like other gases in that it exhibits decreasing solubility in solvent liquids as the temp of the solvent increases. Melting point: -57.5 C Boiling point: 37.7 C Ammonia solutions decrease in density as the concentration of dissolved ammonia increases. At 15.6 degrees C, it has a molarity of approximately 18 mol L-1.

=__Applications__=

Household ammonia is dilute ammonium hydroxide, which is also an ingredient of numerous other cleaning agents, including many window cleaning formulas. In addition to use as an ingredient in cleansers with other cleansing ingredients, ammonium hydroxide in water is also sold as a cleaning agent by itself, usually labelled as simply "ammonia". It may be sold plain, lemon-scented (and typically colored yellow), or pine-scented (green). Commonly available ammonia that has had soap added to it is known as "Cloudy ammonia".

As a food additive, ammonium hydroxide is used as an antimicrobial. In the United States, ammonium hydroxide is classified by the Food and Drug Administration as generally recognized as safe (GRAS). Some fast-food restaurants use beef that has been treated with ammonium hydroxide to make it safe, but McDonald's, Burger King and Taco Bell restaurants have recently stopped this practice  Beef treated with ammonium hydroxide can still be found on grocery shelves.