Which method is used for chloride determination?

Which method is used for chloride determination?

• A. Mohr method
• B. Schales and Schales
• C. Argentometric
• D. Volhard

Answer: (B)

Chloride determination is classically done by argentometric titration, where silver ions react with chloride to form insoluble AgCl until all chloride is consumed. The endpoint is reached by using a defined indicator system that signals the excess of silver ions. Schales and Schales is a well-established, specific procedure within argentometric methods for chloride determination. It provides a straightforward, reliable protocol: titrate the chloride-containing sample with a standard silver nitrate solution and detect the endpoint with the indicator system particular to this method. This makes it a preferred, widely taught approach for chloride analysis in many laboratory settings. The Mohr method is another argentometric variant using a chromate indicator, Volhard is a back-titration method used under different circumstances, and “argentometric” is a broad category rather than a single procedure. The named Schales and Schales method is commonly regarded as the standard technique for direct chloride determination.

Chloride determination is classically done by argentometric titration, where silver ions react with chloride to form insoluble AgCl until all chloride is consumed. The endpoint is reached by using a defined indicator system that signals the excess of silver ions.

Schales and Schales is a well-established, specific procedure within argentometric methods for chloride determination. It provides a straightforward, reliable protocol: titrate the chloride-containing sample with a standard silver nitrate solution and detect the endpoint with the indicator system particular to this method. This makes it a preferred, widely taught approach for chloride analysis in many laboratory settings.

The Mohr method is another argentometric variant using a chromate indicator, Volhard is a back-titration method used under different circumstances, and “argentometric” is a broad category rather than a single procedure. The named Schales and Schales method is commonly regarded as the standard technique for direct chloride determination.