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Boiling point

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Description of key information


Key value for chemical safety assessment

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Due to the complex nature of bitumens, single numerical values for boiling point are not meaningful. Bitumens are residual products from vacuum distillation. In general they have boiling points (EN15199-2/IP507) over 320°C (hard bitumen usually > 500°C), reflecting the distillation temperature (CONCAWE, 1992a).