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of 90, and it is thermally stable, nonflammable, recyclable, and has very low toxicity and a pleasant smell. PCE is recycled by distillation at its boiling point (121 °C). Unlike the related dry-cleaning solvent carbon tetrachloride, perchloroethylene is not an ozone-depleting substance. Perchloroethylene can cause color bleeding/loss, especially at higher temperatures. In some cases it may damage special

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