Aqueous solution of ammonia is called Aqua Ammonia or ammonium hydroxide popularly used as liquor Ammonia. Aqua Ammonia used in many industrial and domestic uses some of them are dying, food, paper, pharma. Aqua Ammonia is clear colourless liquid manufactured under GMP without any contamination. Specific gravity of aqua Ammonia 0.9 at15Â°c which is lighter than water. Whereas Ph is 11. For 20% Ammonia solution.