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Physical & Chemical properties

Boiling point

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Description of key information

The boiling point of 1,2 -dichloro-1,2-difluoroethylene ranges from 20 to 22°C depending from the cis/trans isomers ratio.

Key value for chemical safety assessment

Additional information

1,2-dichloro-1,2-difluoroethylene is the mixture of the stereoisomers cis-1,2-dichloro-1,2-difluoroethylene and trans-1,2 -dichloro-1,2-difluoroethylene.

According to the registrant company Safety Data Sheet, which reports internal data, the boiling point of 1,2 -dichloro-1,2-difluoroethylene ranges from 21 to 22°C depending from the cis/trans isomers ratio.

The data source is considered reliable.

Furthermore, two reliable, independent sources report the following values for boiling point of 1,2-dichloro-1,2-difluoroethylene:

- 21.1 °C (294.1 K)

- 20.2 °C (293.2 K)

Considering the variability of isomers ratio, those data are consistent with the internal company data.

It can be concluded that the boiling point of 1,2 -dichloro-1,2-difluoroethylene ranges from 20 to 22°C depending from the cis/trans isomers ratio.