A chemical processing aid is added directly to the reaction mixture or is present in a mixture used to aid in processing and its function is such that it does not remain in the product. Examples include catalysts, solvents, and buffers. A manufacturing aid helps to run the equipment and is never incorporated into the product. Examples include lubricants, coolants, and refrigerants. Since, in either case (manufacturing aid or processing aid), incorporation of the toxic chemical into the final product is not required for the chemical to perform its function, toxic chemicals that are used as manufacturing aids or as processing aids are considered otherwise used under EPCRA Section 313. Additional information is available in the Toxic Release Inventory Reporting Forms and Instructions.
What is the difference between a manufacturing aid and processing aid?
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