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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Link to relevant study record(s)

Reference
Endpoint:
explosive properties of explosives
Type of information:
other: Expert statement
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Expert statement
Qualifier:
according to guideline
Guideline:
other: UN Recommendations on the Transport of Dangerous Goods (Manual of Tests and Criteria, Annex 6, Orange Book, 3rd edition, 1999)
GLP compliance:
no
Key result
Parameter:
other: decomposition energy
Value:
325
Key result
Test series:
other: not specified
Method:
other: Differential Scanning Calorimetry in a closed, gold plated high pressure vessel (DSC)
Parameter:
other: decomposition energy
Remarks:
(determined between room temperature and 500 °C)
Value:
235
Result:
result is considered "-" (negative)
Interpretation of results:
GHS criteria not met
Conclusions:
Based on criteria defined in UN Recommendations on the Transport of Dangerous Goods (Manual of Tests and Criteria, Annex 6, Orange Book, 3rd edition, 1999), BLUE GS 5664.80 is not to be classified as explosive material and no experimental determination according to the EC test guideline A.14 has to be performed.
Thus it can be concluded beyond a reasonable doubt, that BLUE GS 5664.80 is not a potential explosive and does not have a potential for rapid energy release. Nevertheless, this judgement is in respect to classification; it does not necessarily mean that any processing hazards can be discounted.
Executive summary:

The explosive properties of BLUE GS 5664.80 were estimated based on the UN Recommendations on the Transport of Dangerous Goods (Manual of Tests and Criteria,

Annex 6, Orange Book, 3rd edition, 1999) where a set of criteria is compiled to identify materials being potential explosives.

1. Reactive Groups

The test item is a mixture of several closely related compounds. It contains about 65 % of coloured compounds, 85 % thereof are represented by the main compound.

The appraisal of the molecular structure indicates no risk of rapid decomposition. BLUE GS 5664.80 does not contain any of the structural features mentioned in the UN

Recommendations. The occurrence of other chemical groups associated with explosive properties as described in the L. Bretherik (1979) ["Handbook of Reactive Chemical Hazards", London, Butterworth, 1979] was also considered. No such groups were present.

2. Oxygen Balance

The oxygen balance is not considered relevant for the evaluation of the explosive properties of this substance as it is not adequately characterised by taking into account carbon, hydrogen and oxygen only and omitting nitrogen, sulphur and halogens. Additionally, the molecular formula of this polymer is not precisely defined.

3. Calorimetric Tests

The exothermic decomposition energy was determined using Differential Scanning Calorimetry in a closed, gold plated high pressure vessel (DSC). One sharp exothermic peak with a maximum at 295 °C was detected. The decomposition energy (Li Hoec determined between room temperature and 500 °C) was found to be about 325 J/g thus being far below the UN limit of 500 J/g. The onset point of the exothermic peak was at about 280 °C.

Conclusion

Based on items 1 and 3 as outlined above, BLUE GS 5664.80 is not to be classified as explosive material and no experimental determination according to the EC test guideline A.14 has to be performed. The result of item 2 (oxygen balance) is not considered relevant for this substance as the substance is not adequately characterised by taking into account carbon, hydrogen and oxygen only and omitting nitrogen, sulphur and halogens.

Thus it can be concluded beyond a reasonable doubt, that BLUE GS 5664.80 is not a potential explosive and does not have a potential for rapid energy release. Nevertheless, this judgement is in respect to classification; it does not necessarily mean that any processing hazards can be discounted.

Description of key information

Based on criteria defined in UN Recommendations on the Transport of Dangerous Goods (Manual of Tests and Criteria, Annex 6, Orange Book, 3rd edition, 1999), BLUE GS 5664.80 is not to be classified as explosive material and no experimental determination according to the EC test guideline A.14 has to be performed.

Thus it can be concluded beyond a reasonable doubt, that BLUE GS 5664.80 is not a potential explosive and does not have a potential for rapid energy release. Nevertheless, this judgement is in respect to classification; it does not necessarily mean that any processing hazards can be discounted.

Key value for chemical safety assessment

Explosiveness:
non explosive

Additional information

Justification for classification or non-classification

Not classified according to CLP based on Screening procedures and waiving of testing defined in CLP.