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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

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Diss Factsheets

Physical & Chemical properties

Melting point / freezing point

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Administrative data

Link to relevant study record(s)

Description of key information

UNOXOL(TM) 3,4 Dialdehyde has no melting temperature ≥ -90°C (183K).

Key value for chemical safety assessment

Additional information

The boiling temperature of UNOXOL(TM) 3,4 Dialdehyde was determined to be in the range of 200°C - 250°C (473K-523K). Reaction and/or decomposition of the test substance was observed together with boiling. Melting of UNOXOL(TM) 3,4 Dialdehyde was not observed below the temperature at which boiling started. Therefore UNOXOL(TM)3,4 Dialdehyde has no melting temperature ≥ -90°C (183K). The determination that UNOXOL(TM) 3,4 Dialdehyde has no melting temperature≥ -90°C (183K) is not expected to be impacted by the amount of impurities (mainly heptanes). Therefore the determination of melting point of UNOXOL(TM) 3,4 Dialdehyde Crude Grade (Heptanes content ca. 6% wt) has not been conducted.