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Physical & Chemical properties

Vapour pressure

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Administrative data

Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Study period:
04.09.2017 to 03.11.2017
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2018

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
OECD Guideline 104 (Vapour Pressure Curve)
Version / remarks:
2006
Qualifier:
according to guideline
Guideline:
EU Method A.4 (Vapour Pressure)
Version / remarks:
2008
GLP compliance:
yes (incl. QA statement)
Remarks:
consilab, Gesellschaft für Anlagensicherheit mbH, Industriepark Höchst, G830/G840, 65926 Frankfurt am Main (Germany)
Type of method:
effusion method: Knudsen cell

Test material

Constituent 1
Chemical structure
Reference substance name:
3,7-dimethyloctane-1,7-diol
EC Number:
203-517-1
EC Name:
3,7-dimethyloctane-1,7-diol
Cas Number:
107-74-4
Molecular formula:
C10H22O2
IUPAC Name:
3,7-dimethyloctane-1,7-diol
Test material form:
liquid
Specific details on test material used for the study:
SOURCE OF TEST MATERIAL
- Source and lot/batch No.of test material: Miltitz Aromatics GmbH, ChemiePark Bitterfeld-Wolfen, Areal B-Ost, Riechstoffstraße, 06803 Bitterfeld-Wolfen (Germany)/Batch No./Lot No.: BM 7/17; 239/17
- Expiration date of the lot/batch: 14.06.2019
- Purity test date: 14.06.2017

STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
- Storage condition of test material: test item stored at ambient temperature

Results and discussion

Vapour pressureopen allclose all
Key result
Temp.:
20 °C
Vapour pressure:
0.01 Pa
Key result
Temp.:
25 °C
Vapour pressure:
0.019 Pa
Key result
Temp.:
50 °C
Vapour pressure:
0.36 Pa

Applicant's summary and conclusion

Conclusions:
Based on measurements, vapour pressures of 0.01 Pa at 20°C, 0.019 Pa at 25°C, and 0.36 Pa at 50°C were calculated.
Executive summary:

The vapour pressure of the test item was investigated in a study conducted according to OECD Guideline 104 (Vapour Pressure Curve; 2006), EU Method A.4 (Vapour Pressure; 2008), and EPA OPPTS 830.7950 (Vapor Pressure; 1996) using the effusion method (Knudsen cell). Based on measured vapour pressures in the range of 20.3 to 50.7°C, vapour pressures at 20, 25, and 50°C were calculated using the Antoine equation. The calculation yielded vapour pressure values of 0.01 Pa at 20°C, 0.019 Pa at 25°C, and 0.3.6 Pa at 50°C.