The phrase "ammonium hydroxide solution" is correct and usable in written English.
It can be used in scientific or technical contexts, particularly in chemistry, to refer to a solution containing ammonium hydroxide.
Example: "The experiment requires the addition of ammonium hydroxide solution to neutralize the acid."
Alternatives: "ammonium hydroxide liquid" or "aqueous ammonium hydroxide".
0.20 g of tetraammineplatinum nitrate was dissolved in 3 mL of H2O.Approximately 30% ammonium hydroxide solution (NH4OH, 28% NH3 in H2O, ≥99.99%, Sigma-Aldrich) was then added to the solution until the pH reached 11.
Ammonium hydroxide solution (30%) was added dropwise until the pH was readjusted to 6.062, and then different ELR membranes were placed at the bottom of beaker and incubated for eight days at 37 °C using a temperature-controlled incubator (LTE Scientific, Oldham, UK).
Pt/C nanocatalysts were prepared by the reduction of chloroplatinic acid with sodium borohydride, with citric acid as a stabilizing agent in ammonium hydroxide solution.
The superhydrophobicity is retained even in highly corrosive acidic and basic conditions (pH 1.29 13.54, concentrated HNO3 exposure and ammonium hydroxide solution), as well in a wide humidity range (35 83%).
It was found that a 10-μm-thick film of the PSPI precursor system containing 13 wt% PAGs exhibits a sensitivity (D0) of 700 mJ/cm2 when developed with 2.38 wt% aqueous tetramethyl ammonium hydroxide solution at room temperature.
Ammonia (ammonium hydroxide solution 25%%), citric acid, and ammonium carbonate were purchased from Sigma Aldrich.
The reaction mixture was transferred into a stainless steel autoclave, with 80% volume filled with the ammonium hydroxide solution.
The reaction mixture was neutralized with aqueous ammonium hydroxide solution (5%) and the precipitated solid was filtered.
Following this, 28% ammonium hydroxide solution (NH4OH in H2O) was added to react with TEOS in microemulsion.
The mixture was distilled with steam and 150 ml distillate was collected in the 25 ml 0.1 N silver nitrate and 10 ml 10% ammonium hydroxide solution.
An ammonium hydroxide solution (30 33% NH3 in water) from Sigma-Aldrich was used for the modification of the pH value.
