Registration Dossier

Administrative data

Endpoint:
explosiveness
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2008-02-26
Reliability:
1 (reliable without restriction)

Data source

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

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
other:
Principles of method if other than guideline:
The exothermic decomposition energy was detected using Differential Scanning Calorimetry in an closed, gold plated high pressure vessel (DSC).
GLP compliance:
no

Test material

Reference
Name:
Unnamed
Type:
Constituent
Details on test material:
- Name of test material (as cited in study report): FAT 40840/A TE
- Substance type: colouring dye
- Physical state: solid, dark red powder
- Analytical purity: approx. 78.9% org. part (NA-salt), MC: 37.7%, Oligomers: 19.2%
- Purity test date:
- Lot/batch No.: ROE 358 BOP 01/07
- Expiration date of the lot/batch: June 30, 2012
- Storage condition of test material: At room temperature at about 20°C

Results and discussion

Small-scale preliminary testsopen allclose all
Parameter:
other: Explosive under influence of flame
Remarks:
migrated information
Remarks on result:
negative (not further specified)
Parameter:
other: Explosive (not specified)
Remarks:
migrated information
Remarks on result:
negative (not further specified)

Any other information on results incl. tables

FAT 40840/A TE contains azo groups which might be associated with explosive properties. The halogen atoms are only linked directly to Carbon atoms and therefore do not indicate explosive properties. The results of the oxygen balance is not considered relevant for this substance as the substance is not addequately characterised by taking into account carbon, hydrogen and oxygen only and omitting nitrogen, sulphur and halogens.

Calorimetric Tests

The exothermic decomposition energy was determined using Differential Scanning Calorimetry in a closed, gold plated high pressure vessel (DSC). The calorimetric test is of special importance for the evaluation of compounds containing chemical groups associated with explosive properties. A sharp peak and three flat peak were observed. Four peaks were detected between room temperature and 500 °C. The total of their decomposition energy (ΔHDec determined between room temperature and 500 °C) was found to be about 368,1 J/g, thus being significantly below the UN limit of 500 J/g. The onset point of the first exothermic peak was at about 41,63 °C.

Applicant's summary and conclusion

Conclusions:
It can be concluded beyond any reasonable doubt, that FAT 40840/A TE is not a potential explosive and does not have a potential for rapid energy release.
Executive summary:

FAT 40840/A TE contains azo groups which might be associated with explosive properties. The halogen atoms are only linked directly to Carbon atoms and therefore do not indicate explosive properties. The results of the oxygen balance is not considered relevant for this substance as the substance is not addequately characterised by taking into account carbon, hydrogen and oxygen only and omitting nitrogen, sulphur and halogens.

In the calorimetric test 4 peaks were detected between room temperature and 500°C. The total of their composition energy was found to be about 368.1 J/g, thus being significately below the UN limit of 500 J/g.