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Vapour pressure

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Reference
Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2017
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
OECD Guideline 104 (Vapour Pressure Curve)
Deviations:
no
Qualifier:
according to guideline
Guideline:
EU Method A.4 (Vapour Pressure)
Deviations:
no
GLP compliance:
no
Type of method:
effusion method: Knudsen cell
Specific details on test material used for the study:
Name sodium 3-sulfobenzoate
Batch no. 170103
CAS No. 17625-03-5
Purity > 99.0% (Titration with NaOH, Glass indicating electrode, Calomel reference electrode)
Expiry date 14. Feb. 2019
Storage Room Temperature (20 ± 5°C), keep away from humidity
Test no.:
#3
Temp.:
60 °C
Vapour pressure:
0.003 Pa

The vapour pressure was examined at nine different temperatures. No temperatures could be evaluated as they showed no reproducible or relevant weight loss. As a calculation on base of the measured weight losses is not possible, the highest vapour pressure, derived from all measurements, is stated as limit value. Vapour pressure at 60 °C: 3.19 * 10-03 Pa.

Conclusions:
Vapour pressure of sodium hydrogen m-sulphonatobenzoate at 60 °C is 3.19 x 10-3 Pa.
Executive summary:

Vapour Pressure of sodium 3-sulfobenzoate has been determined accordin to OECD 104 and EU A.4 using the effusion method Knudsen Cell.

The vapour pressure was examined at nine different temperatures. No temperatures could be evaluated as they showed no reproducible or relevant weight loss. As a calculation on base of the measured weight losses is not possible, the highest vapour pressure, derived from all measurements, is stated as limit value. Vapour pressure of sodium hydrogen m-sulphonatobenzoate at 60 °C is 3.19 x 10 -3 Pa.

Description of key information

Vapour Pressure of sodium 3-sulfobenzoate has been determined accordin to OECD 104 and EU A.4 using the effusion method Knudsen Cell.

The vapour pressure was examined at nine different temperatures. No temperatures could be evaluated as they showed no reproducible or relevant weight loss. As a calculation on base of the measured weight losses is not possible, the highest vapour pressure, derived from all measurements, is stated as limit value. Vapour pressure of sodium hydrogen m-sulphonatobenzoate at 60 °C is 3.19 x 10-3Pa.

Key value for chemical safety assessment

Vapour pressure:
0.003 Pa
at the temperature of:
60 °C

Additional information

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