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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Physical & Chemical properties

Flammability

Currently viewing:

Administrative data

Endpoint:
self-heating substances / mixtures
Type of information:
experimental study
Adequacy of study:
key study
Study period:
22 December 2017 - 07 June 2018
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 guideline
Qualifier:
according to guideline
Guideline:
UN Manual of Tests and Criteria: Test N.4 (Test method for self-heating substances)
Version / remarks:
Rev. 6 (2015)
Deviations:
no
GLP compliance:
yes

Test material

Constituent 1
Chemical structure
Reference substance name:
(1R,3aS,3bR,9aR,9bS,11aS)-1-ethynyl-1-hydroxy-11a-methyl-1H,2H,3H,3aH,3bH,7H,8H,9H,9aH,9bH,10H,11H,11aH-cyclopenta[a]phenanthren-7-one
EC Number:
608-630-3
Cas Number:
31528-46-8
Molecular formula:
C20H24O2
IUPAC Name:
(1R,3aS,3bR,9aR,9bS,11aS)-1-ethynyl-1-hydroxy-11a-methyl-1H,2H,3H,3aH,3bH,7H,8H,9H,9aH,9bH,10H,11H,11aH-cyclopenta[a]phenanthren-7-one
Test material form:
solid: particulate/powder
Details on test material:
Appearance: Off-white powder
Test item storage: At room temperature
Specific details on test material used for the study:
Particle size distribution: D10 = 7.991 μm, D50 = 17.774 μm and D90 = 34.857 μm.

Results and discussion

Self-heating substances / mixtures
Key result
Test procedure:
100 mm sample cube at 140°C
Result:
negative outcome (no effect observed)

Any other information on results incl. tables

No spontaneous ignition occurred and no exothermic effect of the test item was observed. It demonstrated that the test item is “not a self-heating substance”. According to the UN guideline, no further testing is required.

After the experiment, the test item had turned into a light yellow powder. It indicated that the test item had been decomposed and/or reacted during the experiment.

Applicant's summary and conclusion

Interpretation of results:
other: not classified based on GHS or CLP criteria
Conclusions:
The substance is not a self-heating substance.
Executive summary:

In a GLP study according to UN Test N.4, a negative result was obtained using a 10x10x10 cm sample cube at 140°C. From this it was concluded that the substance is not a self-heating substance.