Measuring TiCl₄ in the Presence of
Interference From SO₂

Titanium dioxide (TiO₂) is a widely used white pigment whose use includes industries such as plastics, cosmetics, and even food. Produced mainly through the chloride process, its production involves titanium extraction from ores using chlorine, followed by reaction with oxygen to form TiO₂. Operators monitor the recycle stream to gauge reaction efficiency, with TiCl₄ levels indicating upstream issues. However, interference from substances like sulfur dioxide (SO₂) can confound traditional photometric sensors. Dispersive spectrometers like AAI’s OMA-300 offer a solution by analyzing the entire absorption spectrum allowing them to bypass issues faced by photometers.

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