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Administrative data

Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Study period:
26 June - 28 August 2009
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Study was performed according to OECD and EC guidelines and according to GLP principles.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2009
Report date:
2009

Materials and methods

Test guidelineopen allclose all
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:
yes (incl. QA statement)
Type of method:
effusion method: isothermal thermogravimetry

Test material

Constituent 1
Chemical structure
Reference substance name:
Reaction mass of 3-[3-(2,3-dihydroxypropoxy)-2-hydroxypropoxy]propane-1,2-diol and 3-(2,3-dihydroxypropoxy)propane-1,2-diol and 3-[3-[3-(2,3-dihydroxypropoxy)-2-hydroxypropoxy]-2-hydroxypropoxy]propane-1,2-diol
EC Number:
915-741-3
Cas Number:
25618-55-7
Molecular formula:
not applicable - multi-constituent substance
IUPAC Name:
Reaction mass of 3-[3-(2,3-dihydroxypropoxy)-2-hydroxypropoxy]propane-1,2-diol and 3-(2,3-dihydroxypropoxy)propane-1,2-diol and 3-[3-[3-(2,3-dihydroxypropoxy)-2-hydroxypropoxy]-2-hydroxypropoxy]propane-1,2-diol
Constituent 2
Reference substance name:
Polyglycerol-3
IUPAC Name:
Polyglycerol-3
Details on test material:
- Name of test material (as cited in study report): Polyglycerol-3
- Substance type: organic liquid
- Physical state: Colourless to pale yellow viscous liquid
- Analytical purity:
27.9% Diglycerol
46.0% Triglycerol
17.9% Tetraglycerol
5.6% Pentaglycerol
2.6% Hexaglycerol and higher
- Purity test date: no data
- Lot/batch No.: RBA081008A
- Expiration date of the lot/batch: 31 May 2010
- Stability under test conditions: stabile

Results and discussion

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

Any other information on results incl. tables

Results of the isothermal TGA analysis

Temperature
(°C)

Weight loss
(µg/min)

νT
(g/cm2/h)

logνT

160

3.386

4.04^10-4

- 3.39

 

3.717

4.44^10-4

- 3.35

170

6.329

7.55^10-4

- 3.12

 

6.205

7.41^10-4

- 3.13

180

11.68

1.39^10-3

- 2.86

 

11.92

1.42^10-3

- 2.85

190

21.24

2.54^10-3

- 2.60

 

19.98

2.38^10-3

- 2.62

 

Applicant's summary and conclusion

Conclusions:
The isothermal thermogravimetric effusion method was chosen for the determination of the vapour pressure of Polyglycerol-3. The vapour pressure of the test substance at 20°C (293K) was 6.73 x 10E-6 Pa = 5.05 x 10E-8 mm Hg.