Metrohm's 859 Titrotherm thermometric titration system controls sulphate levels in wet process phosphoric acid production.
The previous methods have either been too slow and difficult to perform (classical gravimetry) or inaccurate and subject to interference (nephelometry).
Titrotherm's simple thermometric titration with barium chloride is usually complete in 30 seconds and meets industry requirements for precision and accuracy.
The method is suitable for automation with a Metrohm 814 Sample Processor.
