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Anna, Teacher, writer, biologist
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A food plant is using a chlorine (200 ppm) spray as a disinfectant.

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A food plant is using a chlorine (200 ppm) spray as a disinfectant. Machinery with black oxide finishes and zinc plating are rusting severly and discoloring. Can the chlorine spray be the cause of this? <br /> <br />MY EMAIL IS: <br />xxxxxxxxxxxxxxxxx

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Studies have been done on the effects of chlorine disinfectants on medical equipment, which is similar to food processing equipment. The disinfectants did cause corrosion when used in concentrations greater than 500 ppm. At 200 ppm, such damage shouldn't occur. However, the discoloration could eb caused by the disinfectant. It's basically bleach, and bleach even in low concentrations causes color changes. As for the rust, it may be caused by something else in the disinfectant, or it may be unrelated. You can read more about chlorine and machinery by scrolling down on this site:

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