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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Administrative data

Endpoint:
auto-ignition temperature (liquids)
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

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2015
Report date:
2015

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
EU Method A.15 (Auto-Ignition Temperature (Liquids and Gases))
Version / remarks:

There were no deviations from standard operating procedures (SOPs)
Deviations:
no
Qualifier:
according to guideline
Guideline:
DIN 51794 (Testing of mineral oil hydrocarbons - Determination of ignition temperature)
Version / remarks:

There were no deviations from standard operating procedures (SOPs)
Deviations:
no
GLP compliance:
yes (incl. QA statement)

Test material

Constituent 1
Chemical structure
Reference substance name:
2-butyl-3,6-dihydro-4,6-dimethyl-2H-pyran
EC Number:
246-099-6
EC Name:
2-butyl-3,6-dihydro-4,6-dimethyl-2H-pyran
Cas Number:
24237-01-2
Molecular formula:
C11H20O
IUPAC Name:
2-butyl-4,6-dimethyl-3,6-dihydro-2H-pyran
Constituent 2
Chemical structure
Reference substance name:
6-butyl-3,6-dihydro-2,4-dimethyl-2H-pyran
EC Number:
246-098-0
EC Name:
6-butyl-3,6-dihydro-2,4-dimethyl-2H-pyran
Cas Number:
24237-00-1
Molecular formula:
C11H20O
IUPAC Name:
6-butyl-2,4-dimethyl-3,6-dihydro-2H-pyran
Constituent 3
Chemical structure
Reference substance name:
2-butyltetrahydro-6-methyl-4-methylene-2H-pyran
EC Number:
246-101-5
EC Name:
2-butyltetrahydro-6-methyl-4-methylene-2H-pyran
Cas Number:
24237-02-3
Molecular formula:
C11H20O
IUPAC Name:
2-butyl-6-methyl-4-methylenetetrahydro-2H-pyran
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.

Results and discussion

Auto-ignition temperature (liquids / gases)
Key result
Auto-ignition temperature:
220 °C
Atm. press.:
> 1 009.9 - < 1 015.1 hPa

Applicant's summary and conclusion

Conclusions:
Commercially available auto-ignition temperature apparatus was used for the determination of the degree of auto-ignitability of Gyrane.
The test substance is auto-ignitable with an auto-ignition temperature of 220°C at 1009.9 and 1015.1 hPa.
Executive summary:

Commercially available auto-ignition temperature apparatus was used for the determination of the degree of auto-ignitability of Gyrane. The test substance is auto-ignitable with an auto-ignition temperature of 220°C at 1009.9 and 1015.1 hPa.