Determining concentration of acids in acid mixture by reacting acid mixture comprising nitric acid, fluoric acid, hexafluorosilicic acid and optionally further (in)organic compounds with basic titer

摘要

Process for determining the concentration of acids in a mixture comprises reacting the acid mixture, comprising nitric, fluoric and hexafluorosilicic acids and optionally further (in)organic compounds with a basic titration until an equivalent point is reached between a hydrogen ion concentration of 10<-2> - 10<-3.5>and continuing until a concentration of 10<-4> - 10<-5> and then 10<-10> - 10<-11> is met.