Urea and substituted ureas exhibit a weak basicity and may bind a superacid in the form of a quarternary ammonium salt. |
Classical means of separation were based on the small differences in basicity and solubility. |
The basicity of an organic acid is determined by the number of carboxyl groups present. |
Usually, a basicity above 3.5 provides good absorption and holding capacity for calcium phosphates and calcium sulfides. |
Morpholine is a colorless oily liquid with strong moisture absorption and strong basicity. |
When some sodium chloride solution is then added to one of the two portions, the basicity of the solution is distinctly increased. |