Thiophanate-methyl

Explosiveness

Link to relevant study record(s)

Reference

Endpoint:

explosive properties of explosives

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2014

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Reason / purpose for cross-reference:

reference to same study

Qualifier:

according to guideline

Guideline:

EU Method A.14 (Explosive properties)

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Key result

Parameter:

thermal sensitivity - Koenen test: diameter of the orifice plate

Value:

6

Remarks on result:

not thermal sensitive if heated under defined confinement

Key result

Parameter:

thermal sensitivity - Koenen test: diameter of the orifice plate

Value:

2

Remarks on result:

not thermal sensitive if heated under defined confinement

Key result

Parameter:

sensitiveness to impact: impact energy (J)

Remarks on result:

not sensitive to impact using an impact energy of 40 J

Key result

Parameter:

sensitiveness to friction: friction load (N)

Remarks on result:

not sensitive to friction using a friction load of 360 N

Table 1. Thermal test results

	T1 (seconds)	T2 (seconds)	Observations
6 mm orifice
Test 1 Test 2 Test 3	10 11 11	300 300 300	Orange flame Orange flame Orange flame
2 mm orifice
Test 1 Test 2 Test 3	10 9 11	300 300 300	Orange flame Orange flame Orange flame

Where T1 = time from start of test to flame from nozzle; T2 = time from start of test to explosion, or end of test (300 seconds)

In each case, the tubes were recovered intact.

Table 2. Shock test results

Replicate	1	2	3	4	5	6
Results	N	N	N	N	N	N

Where N = no evidence of explosion, ignition or decomposition.

Table 3. Friction test results

Replicate	1	2	3	4	5	6
Results	D	D	D	D	D	D

Where D = no sign of ignition or explosion but slight decomposition indicated by dark line on porcelain plate.

Interpretation of results:

GHS criteria not met

Conclusions:

The test item showed no explosive properties.

Executive summary:

A series of test according to EU Method A.14 were perfumed to determine the explosive properties of the test item. A test on thermal sensitivity with orifice plates with size of 6 and 2 mm, a test on shock sensitivity and a test on friction sensitivity were conducted. In the thermal sensitivity test, the test item burned with orange flames, but did not explode. In the shock and friction test the test item showed negative results as well. Therefore, the test item is non explosive.

Description of key information

The test item showed no explosive properties.

Key value for chemical safety assessment

Explosiveness:

non explosive

Additional information

A series of tests according to EU Method A.14 were performed to determine the explosive properties of the test item. Tests on thermal sensitivity with orifice plates with size of 6 and 2 mm, on shock sensitivity and on friction sensitivity were conducted. In the thermal sensitivity test, the test item burned with orange flames, but did not explode. In the shock and friction test the test item showed negative results as well. Therefore, the test item is non explosive.

Justification for classification or non-classification

Classification, Labelling, and Packaging Regulation (EC) No. 1272/2008

In accordance with Annex I, Section 2.1 of Regulation (EC) No 1272/2008 (CLP), as amended for the 15th time in Regulation (EU) 2020/1182, and UN GHS Rev 8 (2019) the substance has not to be classified as explosive in class 1.