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Physical & Chemical properties

Boiling point

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Description of key information

The mean boiling temperature of is 157.8 °C.

Handbook data: ~138 °C.

Key value for chemical safety assessment

Boiling point at 101 325 Pa:
157.8 °C

Additional information

The method of Siwoloboff was used.

The atmospheric pressure during the test was 99.7 kPa (calibrated barometer GPB 230, Petrotest, Germany).

The results of the 2 repeat determinations of the boiling temperature for the test substance were: 158.1 and 157.5 °C.

The mean boiling temperature of maleic acid is 157.8 °C.

Supporting Handbook data: ~138 °C.