ammonium hydroxide


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ammonium hydroxide

NH4OH, a solution of ammonia gas in water, used as a household cleaner and a refrigerant.
Synonym: ammonia water
See also: ammonium
References in periodicals archive ?
Ammonium hydroxide solutions were investigated at concentrations of 0.1, 0.5, 1, 2, and 5% (v/v) and the results are shown in Figure 5.
Questions and answers about ammonium hydroxide use in food production.
2i-c) among rinsed MSO-2-treated fabrics implies the presence of free acids that did not react with ammonium hydroxide. It is possible for the fatty acid hydrophobes to reduce the accessibility of ammonium hydroxide to MSO-2 and MSO-3 free acids.
While some critics have targeted the use of ammonium hydroxide in the product's production, Staples said the meat has been deemed safe.
The column was washed with deionized water and L-lysine was then eluted with 2 N ammonium hydroxide solutions.
Uric acid is virtually insoluble in water or common organic solvents, but it can be dissolved in basic solution such as aqueous solutions of [Li.sub.2]C[O.sub.3] (1), KOH (2), NaOH (3), and ammonium hydroxide (4,5).
For chemical resistance test, the acids namely concentrated hydrochloric acid (10%), concentrated nitric acid (40%) and glacial acetic acid (8%), the alkalis namely aqueous solutions of sodium hydroxide (10%), ammonium hydroxide (10%) and sodium carbonate (20%) and the solvents-Benzene, Carbon tetra chloride, Toluene and water were selected.
The sections were then rinsed in distilled [H.sub.2]O, and after a quick rinse in acetone they were placed in an impregnating solution AgN[O.sub.3], distilled [H.sub.2]O, ethanol, acetone, lithium hydroxide (LiOH), ammonium hydroxide (N[H.sub.4]OH)] for 50 min, followed by a 25-min fixation in a reducer solution (formalin, citric acid monohydrate, ethanol, distilled [H.sub.2]O) at a temperature range of 32-35[degrees]C.
Nitric acid and ammonium hydroxide were used in the sol-gel reactions as a catalyst (i.e., hydrolysis and condensation) and a pH adjustor, respectively.
AmLactin 12% Moisturizing Lotion and Cream were the first cosmetic formulations of 12% lactic acid neutralized with ammonium hydroxide, and they remain the market leaders within that segment.
Procter & Gamble (P&G) has sought to help alleviate the problem of diaper rash, which is caused partly by prolonged contact between an infant's skin and such irritants as ammonium hydroxide (a breakdown product of urine), with its Pampers Rash Guard.
They have high acid numbers and are solubilized in water by neutralizing their carboxylic acid groups, most commonly with ammonium hydroxide. They form true solutions, with limited self-agglomeration, a very small particle size and a clear appearance.