Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Physical & Chemical properties

Vapour pressure

Currently viewing:

Administrative data

Link to relevant study record(s)

Reference
Endpoint:
vapour pressure
Type of information:
calculation (if not (Q)SAR)
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
accepted calculation method
Reason / purpose for cross-reference:
reference to same study
Qualifier:
according to guideline
Guideline:
EU Method A.4 (Vapour Pressure)
Version / remarks:
EEC Publication No. L383, december 1992
Qualifier:
according to guideline
Guideline:
OECD Guideline 104 (Vapour Pressure Curve)
Version / remarks:
adopted July 27, 1995
GLP compliance:
yes
Type of method:
other: calculation
Key result
Test no.:
#1
Temp.:
25 °C
Vapour pressure:
0 Pa
Remarks on result:
other: estimated based on the boiling point calculated and using the Modified Watson Correlation
Remarks:
for formula 1c
Key result
Test no.:
#2
Temp.:
25 °C
Vapour pressure:
0 Pa
Remarks on result:
other: estimated based on the boiling point calculated and using the Modified Watson Correlation
Remarks:
for formula 1d
Conclusions:
The vapour pressure of two main components of RED RWa 4565 was estimated at 25 °C based on the boiling points calculated and using the Modified Watson Correlation to be:
6.89 x 10-26 for formula 1c
4.46 x 10-25 for formula 1d
Executive summary:

The estimation of the vapour pressure of RED RWa 4565 was based on the EEC directive 92/69, Part A, Methods for the determination of physico-chemical properties, A.4 "Vapour

Pressure", EEC Publication No. L383, December 1992 and the OECD Guideline No. 104, "Vapour Pressure", adopted July 27, 1995.

The boiling point of the two main components of RED RWa 4565 was calculated to be approximately 1050 °C (formula 1c) and 1035 °C (formula 1d) using Meissner's method. The ionic structure of the components was not taken into account.

The vapour pressure of two main components of RED RWa 4565 was estimated at 25 °C based on the boiling points calculated and using the Modified Watson Correlation to be:

6.89 x 10-26 for formula 1c

4.46 x 10-25 for formula 1d

Description of key information

The vapour pressure of two main components of RED RWa 4565 was estimated at 25 °C based on the boiling points calculated and using the Modified Watson Correlation.

Key value for chemical safety assessment

Vapour pressure:
0 Pa
at the temperature of:
25 °C

Additional information

6.89 x 10-26 for formula 1c

4.46 x 10-25 for formula 1d