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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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-flammability
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Test procedure according to national standard (VDI 2263, part 1)

Data source

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

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: Directive VDI 2263, Part 1

Test material

Constituent 1
Chemical structure
Reference substance name:
4-(3-methyl-5-oxo-4,5-dihydro-1H-pyrazol-1-yl)benzene-1-sulfonic acid
EC Number:
201-901-3
Cas Number:
89-36-1
Molecular formula:
C10H10N2O4S
IUPAC Name:
4-(3-methyl-5-oxo-4,5-dihydro-1H-pyrazol-1-yl)benzene-1-sulfonic acid

Results and discussion

Auto-ignition temperature (liquids / gases)open allclose all
Auto-ignition temperature:
> 440 °C
Atm. press.:
ca. 1 013 hPa
Remarks on result:
other: This refers to the test substance
Auto-ignition temperature:
>= 330 °C
Atm. press.:
ca. 1 013 hPa
Remarks on result:
other: This refers to the test substance/Kieselguhr mixture (1:1)
Relative self-ignition temperature (solids)open allclose all
Relative self-ignition temperature:
> 440 °C
Remarks on result:
other: This refers to the test substance
Remarks:
at atm. press. of ca.1013.0 hPa
Relative self-ignition temperature:
>= 330 °C
Remarks on result:
other: This refers to the test substance/Kieselguhr mixture (1:1)
Remarks:
at atm. press. of ca.1013.0 hPa

Applicant's summary and conclusion

Conclusions:
No auto iginiton of the test substance was observed up to 440°C. Therefore the substance has not to be classified as self-heating according to Regulation (EC) No 1272/2008.