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Diss Factsheets

Physical & Chemical properties

Vapour pressure

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2020
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study without detailed documentation
Qualifier:
according to guideline
Guideline:
OECD Guideline 104 (Vapour Pressure Curve)
Deviations:
no
GLP compliance:
no
Other quality assurance:
ISO/IEC 17025 (General requirements for the competence of testing and calibration laboratories)
Type of method:
dynamic method
Specific details on test material used for the study:
Lot: KE1132, DDB: 553
Key result
Test no.:
#1
Temp.:
20 °C
Vapour pressure:
0 kPa
Remarks on result:
other: calculated
Key result
Test no.:
#1
Temp.:
50 °C
Vapour pressure:
0 kPa
Remarks on result:
other: calculated

Experimental vapor pressure data:

T / °C       Pexp / kPa

102.75       0.021

106.19       0.025

109.72       0.031

115.13       0.042

120.82       0.059

126.34       0.082

132.26       0.110

139.46       0.160

147.26       0.234

155.52       0.344

165.60       0.544

176.66       0.906

186.81       1.38

199.93       2.35

216.45       4.25

241.49       9.70

263.34       19.60

288.36       41.04

Executive summary:

Calculated vapor pressure values for

Hydrocarbons, C18 -C22, n-alkanes, n-alkenes

at 20 and 50 °C:

T / K       T / °C    Pcalc/ kPa

293.15       20       2.7E-05*

323.15       50       4.5E-04*

Description of key information

Key value for chemical safety assessment

Vapour pressure:
0 kPa
at the temperature of:
20 °C

Additional information

4.5E-4 kPa at 50 °C