| 摘要 |
<p>PURPOSE:To control a removing soln. contg. fluorine and ammonium by measuring the electric conductivity and the hydrogen ion concn. of the aqueous soln. contg. F<-> and NH4<->, and obtaining the relation between the electric conductivity and the fluorine ion concn. and the relation between the hydrogen ion concn. and the molar ratio of NH4<+>/F<->. CONSTITUTION:When an aqueous soln. contg. fluorine and ammonium as a removing soln. is controlled, the electric conductivity and the hydrogen ion concn. of the aqueous soln. contg. essentially F<-> and NH4<-> are measured. The relation between the electric conductivity and the fluorine ion concn. and the relation between the hydrogen ion concn. and the molar ratio of NH4<+>/F<-> are obtd., and the total fluorine ion concn. and the total ammonium ion concn. are obtd. from the relations. Thus, the fluorine ion concn. and the ammonium ion concn. of the aqueous soln. are controlled.</p> |
