Reaction products of 1,6-diisocyanatohexane, oligomers with 2-[(2-methacryloyl)oxy]ethyl 6-hydoxyhexanoate and 2-hydroxyethyl methacrylate

Explosiveness

Administrative data

Endpoint:

explosiveness

Type of information:

calculation (if not (Q)SAR)

Remarks:

Migrated phrase: estimated by calculation

Adequacy of study:

key study

Study period:

12-08-2009 / 14-01-10

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

other: Study conducted in compliance with agreed protocols, with no or minor deviations from standard test guidelines and/or minor methodological deficiencies, which do not affect the quality of the relevant results.

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2009

Report date:

2010

Materials and methods

Test guideline

Qualifier:

according to guideline

Guideline:

other: UN Recommendations on the Transport of Dangerous Goods (Manual of Tests and Criteria, fourth revised edition, 2003, Appendix 6, "Orange Book")

Deviations:

no

GLP compliance:

no

Remarks:

not mandatory

Test material

Reference

Name:

Unnamed

Type:

Constituent

Type:

Constituent

Details on test material:

- Name of test material (as cited in study report): MTDID 8191
- Substance type: UVCB material
- Physical state: Yellowish viscous liquid
- Concentration of oligomers: ≥99.0%
- Purity test date: 21 January 2010
- Lot/batch no.: MK 12/048
- Expiration date of the lot/batch: 27-Jan-2010
- Stability under test conditions: Not reported
- Storage condition of test material: In the refrigerator at about 4 °C

Results and discussion

Small-scale preliminary tests

Small-scale preliminary tests 1

Parameter:

other: More sensitive to shock than m-dinitrobenzene

Remarks:

migrated information

Remarks on result:

other: no data

Remarks:

Not conducted

Small-scale preliminary tests 2

Parameter:

other: More sensitive to friction than m-dinitrobenzene

Remarks:

migrated information

Remarks on result:

other: no data

Remarks:

Not conducted

Small-scale preliminary tests 3

Parameter:

other: Explosive under influence of flame

Remarks:

migrated information

Remarks on result:

other: no data

Remarks:

Not conducted

Small-scale preliminary tests 4

Parameter:

other: Explosive (not specified)

Remarks:

migrated information

Remarks on result:

negative (not further specified)

Remarks:

Based on structure

Any other information on results incl. tables

Reactive Groups

The appraisal of the molecular structure indicates no risk of rapid decomposition. MTDID 8191 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 literature[1]was also considered. No such groups were present.

Oxygen Balance

The oxygen balance is not used for the evaluation of the explosive properties of this formulation.It is difficult to calculate for a mixture of several compounds and in the present case the evaluation as based on "reactive groups" and "calorimetric tests" is fully reliable even without oxygen balance data.

Calorimetric Tests

The exothermic decomposition energy was determined using Differential Scanning Calorimetry in a closed, gold plated high pressure vessel (DSC). The result is shown in the attached Figure1 (SEE ATT 1). The calorimetric test is of special importance for the evaluation of compounds containing chemical groups associated with explosive properties. The total decomposition energy delta-H_Dec determined between room temperature and 500 °C ) was found to be about 194 J/g thus being far below the limit in Annex VII, column 2, of 500 J/g. The onset point of the first exothermic peak (with an energy release of about 12 J/g) was at about 38 °C.

[1] L. Bretherick: “Handbook of Reactive Chemical Hazards“,London, Butterworth, 1979

Applicant's summary and conclusion

Interpretation of results:

non explosive

Remarks:

Migrated information

Conclusions:

MTDID 8191 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 Section "oxygen balance" is not considered
relevant for this substance as the test item is a mixture of several compounds.

Thus it can be concluded beyond a reasonable doubt, that MTDID 8191 is not a potential explosive and does
not have a potential for rapid energy release. Nevertheless, this judgment is in respect to classification; it
does not necessarily mean that any processing hazards can be discounted.

Executive summary:

MTDID 8191 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 Section "oxygen balance" is not considered relevant for this substance as the test item is a mixture of several compounds.

Thus it can be concluded beyond a reasonable doubt, that MTDID 8191 is not a potential explosive and does not have a potential for rapid energy release. Nevertheless, this judgment is in respect to classification; it does not necessarily mean that any processing hazards can be discounted.