Measurement of hydrogen peroxide vapor in powders with potassium titanium oxide oxalate loaded cellulose pellets as probes

An image-based method for determining H(2)O(2) vapor pressures in powder systems was developed based on cellulose pellets loaded with potassium titanium oxide oxalate (PTO Pellets) as probe particles. Solid titanyl salts change color after exposure to hydrogen peroxide vapor and the quantitative response of PTO pellets to H(2)O(2) has been established by comparing reactions with H(2)O(2) in liquid and solid states. Analysis of pictures of the color changes of PTO Pellets mixed into powders can be used to monitor the presence of ppm levels of H(2)O(2) • H(2)O(2) vapor quantification in dry systems with titanyl loaded cellulose particles. • Simple fabrication of H(2)O(2) probe particles. • High sensitivity with LOD 0.190 ppm H(2)O(2)(.)