4-chlorophthalic anhydride

Explosiveness

Administrative data

Endpoint:

explosive properties of explosives

Remarks:

solid

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2003

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2003

Report date:

2003

Materials and methods

Test guideline

Test guideline 1

Qualifier:

according to guideline

Guideline:

EU Method A.14 (Explosive properties)

Version / remarks:

1992

Deviations:

no

Test guideline 2

Qualifier:

according to guideline

Guideline:

other: ASTM E-487

Deviations:

no

GLP compliance:

yes

Test material

Test material information

Constituent 1

Reference substance name:

4-chlorophthalic anhydride

EC Number:

204-251-9

EC Name:

4-chlorophthalic anhydride

Cas Number:

118-45-6

Molecular formula:

C8-H3-Cl-O3

IUPAC Name:

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

Results and discussion

Small-scale preliminary tests

Small-scale preliminary tests 1

Key result

Parameter:

sensitiveness to impact: impact energy (J)

Remarks on result:

negative (not further specified)

Small-scale preliminary tests 2

Key result

Parameter:

other: air heat to 300 °C

Remarks on result:

negative (not further specified)

Any other information on results incl. tables

Six replicate shock tests on the 4-chlorophthalic anhydride (4CLPA) did not result in an explosive event or any other visually apparent physical change in the test substance. Therefore, 4CLPA did not exhibit explosive properties when subjected to mechanical shock. When 4CLPA was heated in air to a maximum temperature of 300 °C in approx. 15 minutes, the heating curves did not show rapid changes of temperature, and, therefore, did not indicate that 4CLPA had explosive properties. This was confirmed by visual observations which showed that 4CLPA did not react violently or explode at any time during this test.  4CLPA changed colour from white to yellow during the test.  These results were consistent with 4CLPA not being explosive, as supported by its oxygen balance of -8.00 (explosivity is generally associated with an oxygen balance greater than -5).

Applicant's summary and conclusion

Interpretation of results:

GHS criteria not met

Conclusions:

The test substance was considered to be not explosive.

Executive summary:

Explosiveness was determined in a study performed according EU Method A.14 and in compliance with GLP criteria. In the study a shock test was performed and additionally, the test substance was heated in air to a maximum temperature of 300 °C in approximately 15 minutes. In the heat test the colour of the substance changed from white to yellow. The results were consistent with the test substance not being explosive as supported by its oxygen balance of -8.00. It is concluded that the test substance is considered to be not explosive.