Liquid and gas chlorine dioxide photometer

Details Liquid and gas chlorine dioxide photometer Liquid and gas chlorine dioxide photometer

G - Physics

01

N

73/59

G01N 21/85 (2006.01) G01N 21/63 (2006.01)

Patent

CA 1097939

Case 4093 ABSTRACT LIQUID AND GAS CHLORINE DIOXIDE PHOTOMETER The density of chlorine dioxide gas in a wet acid atmosphere may be continuously monitored with a photometer energized by a constant voltage incandesent light source illuminating a 0.5 inch thickness, continuous flow sample spaced between quartz glass windows. The emergent light is filtered to pass approximately 4400 Angstrom wavelength light to a selenium photocell. Photocell power output mea- suring means is calibrated to correspond with chlorine dioxide gas density. The concentration strength of an aqueous solution of chlorine dioxide is continuously moni- tored with a similar photometer having a 0.125 inch sample space between windows and a 4600 Angstrom filter for the emergent light.

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