Q
what dissolves polyethylene terephthalate
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Polyethylene terephthalate (PET) is a common type of plastic used in packaging, especially in the manufacture of bottles. It is reputed for its robustness and resistance to most solvents, making it an ideal material for packaging a wide array of products. However, PET can be dissolved by solvents such as o-chlorophenol, phenol, and trichloroacetic acid at high temperatures. These chemicals break down the PET by severing its polymer chains, effectively dissolving the material. Due to the corrosive nature of these solvents, handling them requires proper protective measures and equipment to ensure safety. Additionally, the usage of such solvents is restricted and regulated due to their potential environmental and health impacts. In industrial recycling processes, methylene chloride has also been known to dissolve PET at elevated temperatures, typically in a controlled process to facilitate PET recovery and recycling.
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