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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
explosive properties of explosives
Type of information:
experimental study
Adequacy of study:
key study
Study period:
From 2017-11-22 to 2018-02-06
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2018
Report date:
2018

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
EU Method A.14 (Explosive properties)
Deviations:
no
Qualifier:
according to guideline
Guideline:
other: OECD 113 Screening test for thermal stability and stability in air
Deviations:
no
GLP compliance:
yes (incl. QA statement)

Test material

Constituent 1
Chemical structure
Reference substance name:
3-methyl-1-phenyl-5-pyrazolone
EC Number:
201-891-0
EC Name:
3-methyl-1-phenyl-5-pyrazolone
Cas Number:
89-25-8
Molecular formula:
C10H10N2O
IUPAC Name:
5-methyl-2-phenyl-2,4-dihydro-3H-pyrazol-3-one
Test material form:
solid: particulate/powder

Results and discussion

Small-scale preliminary testsopen allclose all
Key result
Parameter:
other: DSC-measurements
Value:
484
Remarks on result:
other: Energy released in J/g
Key result
Parameter:
other: DSC-measurements
Value:
499
Remarks on result:
other: Energy released in J/g

Any other information on results incl. tables

Two DSC-measurements in closed glass crucibles showed an endothermal effect in the temperature range of 115 – 150 °C and an exothermal effect in the temperature range of 225 – 480 °C with a maximum energy release of 499 J/g. The measurements were terminated at 500 °C.

  Thermal stability (DSC measurements)
 Ident-No.  Weight / mg  Final temperature / °C  Temperature range / °C  Type of effect  Energy / J/g
 36726  13.58  500

115 – 150

225 – 480

Endothermal 

Exothermal

n.r.

484

 36729  13.91 500 

115 – 145

250 – 47

Endothermal Exothermal

n.r.

499

  

Applicant's summary and conclusion

Interpretation of results:
GHS criteria not met
Conclusions:
The test item had no explosive properties in the sense of the European Commission Regulation (EC) No. 440/2008, Method A.14.
Executive summary:

The purpose of the study was to determine the explosive properties of the test item according to European Commission Regulation (EC) No. 440/2008, Methods for the determination of physico-chemical properties (Part A): A.14. Explosive properties and OECD test guideline: OECD 113 Screening test for thermal stability and stability in air, and following GLP.

The sample was tested as received. No further preliminary treatment such as drying or milling was performed. The results given in this report only apply to the tested sample.

The heat of decomposition was below 500 J/g. Therefore the main test on explosive properties was not necessary. The test item had no explosive properties in the sense of the European Commission Regulation (EC) No. 440/2008, Method A.14.