Registration Dossier

Physical & Chemical properties

Flammability

Currently viewing:

Administrative data

Endpoint:
substances / mixtures which in contact with water emit flammable gases
Data waiving:
study scientifically not necessary / other information available
Justification for data waiving:
the study does not need to be conducted because the experience in production or handling shows that the substance does not react with water, e.g. the substance is manufactured with water or washed with water
Cross-reference
Reason / purpose for cross-reference:
reference to other study
Reference
Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Study period:
05 January 2015 - 03 March 2015
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
EU Method A.4 (Vapour Pressure)
Version / remarks:
There were no deviations from standard operating procedures (SOPs)
Deviations:
no
Qualifier:
according to guideline
Guideline:
OECD Guideline 104 (Vapour Pressure Curve)
Version / remarks:
There were no deviations from standard operating procedures (SOPs)
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
effusion method: isothermal thermogravimetry
Specific details on test material used for the study:
Material Identification (as stated in the report) : Gyrane
Appearance: Colourless to pale yellow liquid
Batch: SC00008777

Please note that although the substance is described in the report with the IUPAC name: 6-Butyl-2,4-dimethyl-3,6-dihydro-2H-pyran related to the CAS number 24237-00-1, EC#246-098-0, recent analytical data had been determined the substance to be a multi-constituent described as Reaction mass of 6-butyl-3,6-dihydro-2,4-dimethyl-2H-pyran and 2-butyl-3,6-dihydro-4,6-dimethyl-2H-pyran and 2-butyltetrahydro-6-methyl-4-methylene-2H-pyran.
As the chemical manufacturing process has not changed since the report was written, the recent analytical information is relevant to the batch SC00008777 which was tested.
Key result
Test no.:
#1
Temp.:
20 °C
Vapour pressure:
32 Pa
Test no.:
#2
Temp.:
25 °C
Vapour pressure:
59 Pa
Conclusions:
The isothermal TGA effusion method was applied for the determination of the vapour pressure of Gyrane.
The vapour pressure of the test substance at 20°C (293K) was 32 Pa and at 25°C (298K) was 59 Pa.
Executive summary:

The isothermal TGA effusion method was applied for the determination of the vapour pressure of Gyrane. The vapour pressure of the test substance at 20°C (293K) was 32 Pa and at 25°C (298K) was 59 Pa.

Data source

Materials and methods

Results and discussion

Applicant's summary and conclusion