Registration Dossier
Registration Dossier
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EC number: 940-543-9 | CAS number: 354-15-4
Vapour pressure
Administrative data
Link to relevant study record(s)
- Endpoint:
- vapour pressure
- Type of information:
- calculation (if not (Q)SAR)
- Remarks:
- Migrated phrase: estimated by calculation
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- data from handbook or collection of data
- Remarks:
- The data source is considered reliable since it is a well review database of vapor pressure values and Antoine coefficients of over 9,995 compounds. The data contained in the database are both experimentally determined and estimated based on methods developed by the author and other noted experts.
- Principles of method if other than guideline:
- no data
- Type of method:
- other: not reported
- Temp.:
- 20 °C
- Vapour pressure:
- 130.71 hPa
- Remarks on result:
- other: Calculated according to the Antoine equation.
- Conclusions:
- According to the source, at the temperature of 20 °C, the vapour pressure of 1,1,2 -trichloro-1,2 –difluoroethane is 130.71 hPa.
- Executive summary:
The reference reports the Antoine coefficients for the calculation of the vapour pressure according to the formula:
log10 P(mmHg) = A - ( B / C + T(°C))
where:
A = 7.07039
B = 1256.05
C = 227.304
T = Temperature
According to the Antoine equation at the temperature of 20 °C 1,1,2 -trichloro-1,2 -difluoroethane assumes the vapour pressure of 98.04 mmHg (corresponding to 130.71 hPa).
Reference
The following Antoine coefficients are reported for the calculation of the Vapour pressure in temperature range
-14.2065 °C and 256.85 °C:
A = 7.07039
B = 1256.05
C = 227.304
Basing on the Antoine equation and on the reported coefficients, at the temperature of 20 °C 1,1,2 -trichloro-1,2 -difluoroethane assumes the vapour pressure of 98.04 mmHg (corresponding to 130.71 hPa).
Description of key information
The Vapour Pressure of 1,1,2-dichloro-1,2-difluoroethane at the temperature of 20 °C is 130.71 hPa.
Key value for chemical safety assessment
- Vapour pressure:
- 130.71 hPa
- at the temperature of:
- 20 °C
Additional information
A reliable reference is reported, which provides the Antoine coefficients for 1,1,2 -trichloro-1,2 -difluoroethane in the temperature range from -14 °C and 257 °C.
According to the Antoine equation, at the temperature of 20 °C the substance assumes the vapour pressure of 130.71 hPa.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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