Phosphoric acid concentration measurement

The concentration of Phosphoric acid (H3PO4) is calculated by measuring the conductivity and temperature of the acid. Valmet TCU shows the concentration as % P2O5. Valmet offers readymade concentration measurement recipes for inline phosphoric acid measurements. The sensors are readily calibrated and the cell constant is stored in the sensor memory. All you have to do is install the sensor in the process pipe and power up the measurement. 


Valmet sensors for phosphoric acids

Phosphoric acid measurements
Solution Measuring range  Temperature


 45-60 %  20-80 °C
 P2O5  50-70 %  50-100 °C

Other recipes are available, please contact Valmet for further details.