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EC number: 700-720-1 | CAS number: -
Vapour pressure
Administrative data
- Endpoint:
- vapour pressure
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2-17 Feb 2011
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: Guideline study (OECD TG 104)
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 011
- Report date:
- 2011
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 104 (Vapour Pressure Curve)
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.4 (Vapour Pressure)
- Type of method:
- effusion method: vapour pressure balance
Test material
- Reference substance name:
- Saponification and oxidation product of carnauba wax with acidic sodium dichromate solution esterified with ethylene glycol
- EC Number:
- 700-720-1
- IUPAC Name:
- Saponification and oxidation product of carnauba wax with acidic sodium dichromate solution esterified with ethylene glycol
- Details on test material:
- Test item: C-Wax Type E SZ 18
Purity: 99.5-100% (w/w)
Constituent 1
Results and discussion
Vapour pressureopen allclose all
- Temp.:
- 50 °C
- Vapour pressure:
- 0.001 Pa
- Temp.:
- 25 °C
- Vapour pressure:
- 0 Pa
Any other information on results incl. tables
The vapour pressure was measured in the temperature range of 18 °C to 121 °C. Above 42 °C a vapour pressure was measured. The test item melted during the test. Values between 64 °C and 81 °C show deviations which are presumably caused by the melting process and were therefore excluded from the evaluation.
A figure shows the vapour pressure (logarithmic scale) as a function of the inverse temperature (1/T, T in Kelvin). For better readability the temperature is reported in a centigrade scale. The values for 20, 25 and 50 °C are calculated, using the Antoine constants A, B and C as shown.
T / °C |
p / hPa |
log (p/hPa) = A + B/(C+T[°C]) |
20 |
5.02E-07 |
A = 5.82562 |
25 |
8.02E-07 |
B = -3554.43 |
50 |
6.70E-06 |
C = 273.15 |
Applicant's summary and conclusion
- Conclusions:
- The test substance has a vapour pressure of 8.0 x 10E-5 Pa at 25 °C.
- Executive summary:
The vapour pressure of the test substance was measured in a guideline study (EU A.4; OECD TG 104) with a vapour pressure balance (effusion method). The test substance has a vapour pressure of 8.0 x 10E-5 Pa at 25 °C.
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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