The challenge

This titanium dioxide plant converts dull black synthetic rutile into pure white titanium dioxide via chlorinators that produce titanium tetrachloride.

Dissolved chlorine gases were deteriorating sensors so fast that calibrations were attempted twice a day, with new sensors being used every 1-2 days.

The solution

A special high impedance glass formulation was required for this application to provide chlorine and dissolved gas resistance.

The result

The resulting sensor was physically tougher than its predecessor and could withstand more vigorous cleaning, further extending service life. Turtle Tough’s pH sensor provided much greater accuracy and was able to survive for months at a time, providing as much as a 12 times gain in life expectancy.