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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
test procedure in accordance with national standard methods with acceptable restrictions
Remarks:
standard operating procedure of test institute, equivalent to Directive VDI 2263, part 1
Cross-referenceopen allclose all
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:
March 29, 1999
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study with acceptable restrictions
Remarks:
according to UN test N.4., but limited documentation
Reason / purpose for cross-reference:
reference to same study
Reason / purpose for cross-reference:
reference to same study
Qualifier:
according to guideline
Guideline:
other: UN test N.4, Manual of Tests and Criteria
Qualifier:
equivalent or similar to guideline
Guideline:
other: Directive VDI 2263, part 1
Relative self-ignition temperature:
>= 210 °C
Remarks on result:
preliminary test
Remarks:
screening test according to Grewer
Key result
Relative self-ignition temperature:
> 140 °C
Remarks on result:
no self ignition observed under the test conditions
Remarks:
UN test N.4, 60 hour test period

In the screening test, the test item showed heating from 210°C onwards in the Grewer oven.

UN test N.4.: Testing revealed sample heating of less than 10 K over the 60 hour test period.

Conclusions:
Based on the results of the UN test N.4. the substance has not to be classified as self-heating substance according to Regulation (EC) No 1272/2008.
Reason / purpose for cross-reference:
reference to same study
Reference
Endpoint:
particle size distribution (granulometry)
Type of information:
experimental study
Adequacy of study:
supporting study
Study period:
March 29, 1999
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
comparable to guideline study with acceptable restrictions
Remarks:
according to standard operating procedure of test insttitute
Reason / purpose for cross-reference:
reference to same study
Reason / purpose for cross-reference:
reference to same study
Principles of method if other than guideline:
Malvern laser diffraction
Type of method:
Laser scattering/diffraction
Type of distribution:
volumetric distribution
Percentile:
D50
Mean:
3.5 µm
St. dev.:
0.46

Standard deviation calculated from experience with pigments: 0.13 x D50 (minimum value: 0.1)

Conclusions:
The mass median diameter is 3.5 µm.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1999
Report date:
1999

Materials and methods

Test guideline
Qualifier:
equivalent or similar to guideline
Guideline:
other: Directive VID 2263, part 1
Principles of method if other than guideline:
Determination of the "Brennzahl" (see below) and burning rate

Test material

Constituent 1
Chemical structure
Reference substance name:
2,2'-[(3,3'-dichloro[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[N-(2-methylphenyl)-3-oxobutyramide]
EC Number:
226-789-3
EC Name:
2,2'-[(3,3'-dichloro[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[N-(2-methylphenyl)-3-oxobutyramide]
Cas Number:
5468-75-7
Molecular formula:
C34H30Cl2N6O4
IUPAC Name:
2-[(1E)-2-{3,3'-dichloro-4'-[(1E)-2-{1-[(2-methylphenyl)carbamoyl]-2-oxopropyl}diazen-1-yl]-[1,1'-biphenyl]-4-yl}diazen-1-yl]-N-(2-methylphenyl)-3-oxobutanamide
Test material form:
solid: nanoform

Results and discussion

Flammable solidsopen allclose all
Test procedure:
other: determination of the combustion class (Brennzahl)
Remarks on result:
other: BZ 5 was assigned
Test procedure:
burning rate test: preliminary screening test
Remarks on result:
not determinable
Remarks:
test substance extinguished at an early state of the test line

Any other information on results incl. tables

Brennzahl (BZ, combustion class) 5 was assigned to the test material: "burning with flame or spark generation"

the test for the determination of the burning rate had to be conducted. In the pre-test the flame of the ignited test item extinguishes at an early stage of the test line.

Applicant's summary and conclusion

Interpretation of results:
GHS criteria not met
Remarks:
Regulation EC 1272/2008
Conclusions:
the test item has not to be classified as flammable solid according to Regulation EC 1272/2008