Determination of chloride content in ammonia solution
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This post was last edited by zjp on 2010-1-17 at 14:16. Who can help me figure out how to determine the chloride ion content in ammonia water in an ammonia synthesis system?
What concentration? If the concentration is high, the silver method can be used: neutralize with nitric acid, use potassium chromate as an indicator, and titrate with silver nitrate solution, or employ back-titration. If the concentration is low, use the turbidimetry method.
In fact, there are specific standards for determining chloride ions; generally, silver nitrate is used for titration, potassium dichromate serves as an indicator, or a turbidimeter can be employed for measurement
It depends on the concentration: if the content is high, titration is used, with methods such as silver nitrate titration or back-titration with potassium thiocyanate, as well as mercury nitrate titration; if the content is low, turbidimetry using silver chloride or colorimetry using mercury thiocyanate is employed
Everyone is right; either the Mohr method or the Volhard method will work, but attention must be paid to pH adjustment.
Measured using an automatic potentiometric titrator produced by Mettler Toledo