Carboxylic acids, di-, C4-6

Explosiveness

Link to relevant study record(s)

Reference

Endpoint:

explosive properties of explosives

Type of information:

experimental study

Adequacy of study:

key study

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

EU Method A.14 (Explosive properties)

Deviations:

yes

Remarks:

, the thermal sensitivity test was conducted with a minor modification to the tube packing procedure

GLP compliance:

yes (incl. QA statement)

Parameter:

other: Explosive under influence of flame

Remarks on result:

negative (not further specified)

Shock test  Test n°  Weight (kg)  Height (m)  Results  1  10  0.4 no ignition, no explosion  2  10  0.4 no ignition, no explosion   3  10  0.4 no ignition, no explosion  4  10  0.4 no ignition, no explosion  5  10  0.4 no ignition, no explosion  6  10  0.4 no ignition, no explosion

Diacides AGS have been determined not to have shock sensitivity to explosion under the conditions of the test.

Friction test  Test n°  Weight (N)  Results  Observation  1  360  no ignition, no explosion  fine black trace  2  360  No ignition, no explosion  fine black trace  3  360  No ignition, no explosion  fine black trace  4  360  No ignition, no explosion  fine black trace  5  360  No ignition, no explosion  fine black trace  6  360  No ignition, no explosion  fine black trace Diacides AGS have been determined not to have friction sensitivity to explosion under the conditions of the test.   Thermal sensitivity test  Hole diameter (mm)  Weight (g) V 27.14 cm³  T1 (s)  T2 (s)  Result  6  16.988  66  274  negative  6  17.060  65  301  negative  6  16.886  60  262  negative  2  17.179  54  244  negative  2  17.101  63  251  negative  2  16.985  61  224  negative T1 : time from application of the flame to a noticeable effect from the orifice. T2 : time from application of the flame to the end of the combustion without recorded event (e.g. explosion) as in these tests or to an explosion. Diacidea AGS have been determined not to have thermal sensitivity to explosion under the conditions of the test.

Interpretation of results:

GHS criteria not met

Conclusions:

Diacides AGS have been determined not to have shock-, friction- and thermal sensitivity to explosion under the conditions of the test.

Executive summary:

The determination of explosion properties of Diacides AGS was performed in accordance with the EU Method A.14 (Explosive properties). Diacides AGS have been determined not to have shock-, friction- and thermal sensitivity to explosion under the conditions of the test.

The composition of Diacides AGS is as follows: 51.6% glutaric acid, 23.5% adipic acid, 16.6% succinic acid.

Description of key information

In accordance with the EU method A.14 (Explosive properties) the test shows that Diacide AGS does not have a shock sensitivity-, friction sensitivity and thermal sensitivity to explosion under the conditions of the test.
The composition of Diacides AGS is as follows: 51.6% glutaric acid, 23.5% adipic acid, 16.6% succinic acid (Rhodia, 2008).

Key value for chemical safety assessment

Explosiveness:

non explosive

Justification for classification or non-classification

The determination of explosion properties of the multi constituent substance “dicarboxylic acids” was performed using thermal sensitivity test apparatus, shock test apparatus, and friction test apparatus in accordance with EEC Directive 92/69 Appendix V part A14. The substance has been determined not to have shock sensitivity, not to have friction sensitivity and not to have thermal sensitivity to explosion under test conditions. In conclusion, the carboxylic acids don’t present a danger of explosion (Rhodia, 2008b).