Registration Dossier

Administrative data

Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Study period:
From Oct. 2010 to Nov. 2010
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: The study was conducted according to standard guidelines in compliance with GLP.
Justification for data waiving:
other:
Cross-referenceopen allclose all
Reason / purpose:
reference to same study
Reason / purpose:
reference to other study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2010

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to
Guideline:
OECD Guideline 104 (Vapour Pressure Curve)
Qualifier:
according to
Guideline:
EU Method A.4 (Vapour Pressure)
Principles of method if other than guideline:
Not applicable
GLP compliance:
yes (incl. certificate)
Type of method:
effusion method: by loss of weight or by trapping vaporisate

Test material

Reference
Name:
Unnamed
Type:
Constituent
Details on test material:
- Name of test material (as cited in study report): 12-hydroxystearic acid (CAS N° 106-14-9, EC N° 203-366-1)
- Substance type: Fatty acid
- Physical state: Solid / white-yellowish
- Storage condition of test material: At room temperature in the dark
- Expiration date of the lot/batch: 09 April 2011

Results and discussion

Vapour pressure
Temp.:
20 °C
Vapour pressure:
<= 0 Pa

Applicant's summary and conclusion

Conclusions:
Under the test conditions, the vapour pressure of test substance was found to be <=2.57 × 10-5 Pa, i.e. <= 1.93 × 10-7 mm Hg at 20°C.
Executive summary:

A study was conducted to determine the vapour pressure of 'oils, vegetable, deodorizer distillates' according to the isothermal thermogravimetric effusion method (OECD Guideline 104 and EU method A.4).

9.92 or 10.5 mg of the test substance was applied on glass plates and placed in the thermogravimetric analyzer. The weight loss of the test substance was measured continuously as a function of time from 60 - 75°C and 90 - 200°C. Benzo(ghi)perylene, chrysene, hexachlorobenzene, naphthalene and water were used as reference substances for validation.

Under the test conditions, the vapour pressure of test substance was found to be <=2.57 × 10-5 Pa, i.e. <= 1.93 × 10-7 mm Hg at 20°C.