Thiosulfate is an excellent reducing agent. It is used primarily as an antichlor or chlorine-removing agent in various chemical processes, including the bleaching of pulp, paper, and textiles. CHEMetrics' method employs the iodometric chemistry. Although sulfite usually titrates as thiosulfate, the reagent has been formulated to inhibit high-level sulfite interferences. Thiosulfate is titrated with iodide-iodate titrant in acid solution using a starch indicator. Results are expressed as ppm (mg/L) S203.
WARNING! This product can expose you to chemicals including formaldehyde, which is known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov.