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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
flammable solids
Type of information:
experimental study
Adequacy of study:
key study
Study period:
09 May to 02 June 2008
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
test procedure in accordance with national standard methods
Remarks:
Test procedure according to national standards (VDI 2263, part 1)
Cross-reference
Reason / purpose for cross-reference:
reference to same study
Reference
Endpoint:
relative self-ignition temperature (solids)
Type of information:
experimental study
Adequacy of study:
key study
Study period:
09 May to 02 June 2008
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
test procedure in accordance with national standard methods
Remarks:
Test procedure according to national standards (VDI 2263, part 1)
Reason / purpose for cross-reference:
reference to same study
Qualifier:
according to guideline
Guideline:
other: VDI 2263, part 1
Relative self-ignition temperature:
> 140 °C
Remarks on result:
other:
Remarks:
a

No self-heating process at this oven temperature was observed within 24 h (max. temp.: 140 °C).

Conclusions:
The test substance has not to be classified as self-heating substance according to Regulation (EC) No 1272/2008.
Executive summary:

Self-heating of the test substance was evaluated with a hot storage test (140 °C, 1 L wire basket, 24 h) according to VDI 2263, part 1. No self-heating was observed.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2008
Report date:
2008

Materials and methods

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

Test material

Constituent 1
Chemical structure
Reference substance name:
4,4'-[(3,3'-dichloro[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[2,4-dihydro-5-methyl-2-phenyl-3H-pyrazol-3-one]
EC Number:
222-530-3
EC Name:
4,4'-[(3,3'-dichloro[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[2,4-dihydro-5-methyl-2-phenyl-3H-pyrazol-3-one]
Cas Number:
3520-72-7
Molecular formula:
C32H24Cl2N8O2
IUPAC Name:
4,4'-[(3,3'-dichlorobiphenyl-4,4'-diyl)didiazene-2,1-diyl]bis(5-methyl-2-phenyl-2,4-dihydro-3H-pyrazol-3-one)
Test material form:
solid: nanoform

Results and discussion

Flammable solids
Test procedure:
other: burning index according to VDI 2263
Remarks on result:
other: burning index BZ 3
Remarks:
localized combustion or glowing with practically no spreading

Any other information on results incl. tables

After trying to ignite the strip with a hot flame from a gas burner, the test substance showed an ignition with flame. The flames did not spread. Therefore the test substance was rated with the burning index BZ 3.

Applicant's summary and conclusion

Interpretation of results:
not classified based on GHS criteria
Conclusions:
The test item is has not to be classified as flammable solid according to Regulation (EC) No 1272/2008.
Executive summary:

The combustibility index of the test substance was determined according to VDI 2263, part 1. The test substance was rated with the combustibility index 3 (local burning without spread). The test item is not a flammable solid according to Regulation (EC) No 1272/2008.