Registration Dossier

Diss Factsheets

Administrative data

Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2021
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2021
Report date:
2021

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 104 (Vapour Pressure Curve)
GLP compliance:
yes (incl. QA statement)
Type of method:
effusion method: Knudsen cell

Test material

Constituent 1
Reference substance name:
Docosan-1-ol, icosan-1-ol, octadecan-1-ol and their reaction products with betaine and ethanesulphonic acid
IUPAC Name:
Docosan-1-ol, icosan-1-ol, octadecan-1-ol and their reaction products with betaine and ethanesulphonic acid
Test material form:
solid: bulk

Results and discussion

Vapour pressureopen allclose all
Key result
Test no.:
#2
Temp.:
ca. 25 °C
Vapour pressure:
ca. 0 Pa
Key result
Test no.:
#1
Temp.:
ca. 20 °C
Vapour pressure:
ca. 0 Pa

Applicant's summary and conclusion

Executive summary:

The vapour pressure of the test item Commercial name: CosmeGreen ES1822+
Substance name: Reaction mass between glycine betaine, ethanesulphonic acid, octadecan-1-ol, docosan-1-ol and eicosan-1-ol was determined at nine different tempera-tures (30, 45, 60, 75, 90, 105, 120, 135 and 150 °C) according to OECD 104 resp. EU A.4 using the effusion method (weight loss). Experiment 1 and 6 - 9 (nominal temperature 30 and 105 – 150 °C) showed no reproducible weight loss. When visible contaminations, caused by explosive evaporation of the test item, were observed, the cells were meticulously cleaned and weighed. This weight was used as initial weight for the subsequent measure-ments. To avoid bias, these measurements were not used for calculations.
Four experiments could be evaluated as they showed relevant and reproducible weight loss. All evaluated experiments showed good repeatability, giving relative standard deviations of less than 20 % (limit value from the guideline 30 %) and good correlation.
Therefore, the result of the test can be considered valid.

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