Registration Dossier
Registration Dossier
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EC number: 228-788-3 | CAS number: 6358-87-8
Flammability
Administrative data
- Endpoint:
- flammable solids
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 12 Oct to 7 Nov 2011
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Remarks:
- Guideline study (EU A.10, UN N.1)
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 011
- Report date:
- 2011
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.10 (Flammability (Solids))
- Qualifier:
- according to guideline
- Guideline:
- other: UN transport regulations Div. 4.1 Test N.1
- Qualifier:
- according to guideline
- Guideline:
- other: VDI 2263 sheet 1
Test material
- Reference substance name:
- Diethyl 4,4'-[(3,3'-dichloro[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[4,5-dihydro-5-oxo-1-phenyl-1H-pyrazole-3-carboxylate]
- EC Number:
- 228-788-3
- EC Name:
- Diethyl 4,4'-[(3,3'-dichloro[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[4,5-dihydro-5-oxo-1-phenyl-1H-pyrazole-3-carboxylate]
- Cas Number:
- 6358-87-8
- Molecular formula:
- C36H28Cl2N8O6
- IUPAC Name:
- diethyl 4,4'-[(3,3'-dichlorobiphenyl-4,4'-diyl)didiazene-2,1-diyl]bis(5-oxo-1-phenyl-4,5-dihydro-1H-pyrazole-3-carboxylate)
- Test material form:
- solid: nanoform
Constituent 1
Results and discussion
Flammable solids
- Test procedure:
- burning rate test over 100 mm length
- Burning time:
- 26 s
Any other information on results incl. tables
The test item is known to sustain combustion therefore the preliminary test had to be performed.
Preliminary test
The burning time over a distance of 200 mm was 56s.
This was below the threshold of the burning time of 2 min for other than metal powders.
Therefore the main test had to be performed.
Main Test
In the main test the burning time over a distance of 100 mm after a pre-burning distance of 80 mm was measured three times. The lowest burning time over a distance of 100 mm was 26 s. The combustion could be stopped by a wetting zone. The results of the test are summarized in the table below.
Due to the fact pure water drains of the pile when preparing the wetting zone, 1 wt.-% of a wetting agent (Triton X-100 pro Analysis (Merck; 1.08603.1000)) was used.
Table 1: Results of the main test of the burning rate
Test burning time / s Stopped by wetting?
1 28 Yes
2 26 Yes
3 27 Yes
Applicant's summary and conclusion
- Interpretation of results:
- Category 2 (flammable solids) based on GHS criteria
- Conclusions:
- The test item is to be classified as a flammable solid, category 2 according to regulation (EC) 1272/2008
- Executive summary:
The flammability of the test substance was determined according to EU A.10 and UN transport regulations Div. 4.1 Test N.1.
The preliminary and the main test were performed. The test item shows a burning time of 26 s for a burning distance of 100 mm. A wetted zone stopped the fire and the substance has therefore to be classified as flammable solid, category 2.
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