Method for determining chloride ions in urea

Titration is carried out using silver nitrate with potassium chromate as an indicator. or potentiometry

This post was last edited by qugd on 2018-12-7 at 19:10. When determining chloride ions in any sample, it is necessary to consider or specify the range of chloride ion concentrations in that sample, as analytical methods all have their appropriate measurement ranges and limitations. For constant chloride ions, titration can be performed using the Mohr method or the Volhard method ； For samples with a lower chloride ion content, the titration method can be used; however, the conditions for potentiometric titration need to be strictly controlled. Since urea is a rather special substance, poor control of these conditions can result in urea affecting the titration of chloride ions by silver ions. For trace amounts of chloride ions, the ion-selective electrode method or ion chromatography can be used for determination. Since the original poster suggested discussing this, how much do you know about the analysis of chloride ions in urea? Could you give some advice?