3-chlorophthalic anhydride

Explosiveness

Administrative data

Endpoint:

explosiveness, other

Remarks:

solid

Type of information:

experimental study

Adequacy of study:

weight of evidence

Study period:

2005

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2005

Report date:

2005

Materials and methods

Test guideline

Qualifier:

according to guideline

Guideline:

EU Method A.14 (Explosive properties)

Version / remarks:

1992

Deviations:

no

GLP compliance:

yes

Test material

Test material information

Constituent 1

Reference substance name:

3-chlorophthalic anhydride

EC Number:

204-179-8

EC Name:

3-chlorophthalic anhydride

Cas Number:

117-21-5

Molecular formula:

C8H3ClO3

IUPAC Name:

4-chloro-1,3-dihydro-2-benzofuran-1,3-dione

Results and discussion

Small-scale preliminary tests

Key result

Parameter:

thermal sensitivity - Koenen test: diameter of the orifice plate

Remarks on result:

negative (not further specified)

Any other information on results incl. tables

Three replicate (27 mL, compacted) samples of 3-CLPA were rapidly heated in Koenen tubes using a 6 mm orifice in the cap, and 3 replicate tests were also conducted using a 2 mm orifice. None of the 6 tubes ruptured during the 5 min heating periods. In all cases, smoke and an orange flame were emitted from the tube orifices after about 2 min of heating the tubes containing 3-CLPA. The flames continued for the duration of the heating period or until all the 3CPA was expelled from the tubes.  According to OJEC method A14, an explosion occurs if the tube ruptures into 3 or more pieces.  Therefore, the results of this test indicated that 3-CLPA was not explosive when heated rapidly in a confined space.

Applicant's summary and conclusion

Interpretation of results:

GHS criteria not met

Conclusions:

The test substance considered to be not eplosive.

Executive summary:

The explosiveness of the test substance was determined in a GLP-compliant study performed according to EU method A. 14. In total, 6 samples of test substance were rapidly heated in Koenen tubes with different sizes orifices in the cap. None of the 6 tubes ruptured during the 5 min heating periods. In all cases, smoke and an orange flame were emitted from the tube orifices after about 2 min of heating the tubes containing the test material. The flames continued for the duration of the heating period or until all the test substance was expelled from the tubes. The results indicate the test substance is not explosive when heated rapidly in a confined space.