Propanoic acid, 2-(4-chloro-2-methylphenoxy)-, 2-ethylhexyl ester, (2R)-

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:

from 1999-11-30 to 1999-12-14

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

EU Method A.14 (Explosive properties)

Version / remarks:

92/69/EEC

Deviations:

no

Qualifier:

according to guideline

Guideline:

EPA OPPTS 830.6316 (Explodability)

Deviations:

no

Qualifier:

according to guideline

Guideline:

other: 40 CFR Part 158, Subpart C - Experimental Use Permits

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Specific details on test material used for the study:

- Analytical purity: 92.6%
- Lot/batch No(s): N3447
- Storage condition of test material: room temperature

Key result

Test series:

UN Test series 1

Method:

UN Test 1 (b): Koenen test

Parameter:

other: Time to the end of the experiment without recorded event in seconds

Value:

281

Result:

negative, no explosion

Key result

Test series:

UN Test series 3

Method:

UN Test 3 (a) (ii): BAM Fallhammer

Parameter:

other: Visual effect

Value:

0

Result:

negative, no explosion

Remarks on result:

no ignition, explosion, self-heating or visible decomposition

Shock test:

The test material was passed through a 500 µm sieve. A 10 kg weight was dropped from a height of 40 cm, onto the test assembly containing 40 mm³ of the test material. The test was repeated six times. As no test was positive, the six other tests with a weight of 5 kg dropped from a height of 15 cm were not performed.

Test No.	Weight (kg)	Height (m)	Results
1 2 3 4 5 6	10 10 10 10 10 10	0.4 0.4 0.4 0.4 0.4 0.4	No ignition, no explosion No ignition, no explosion No ignition, no explosion No ignition, no explosion No ignition, no explosion No ignition, no explosion

MECOPROP-P 2-Ethylhexyl ester has been determined not to have shock sensibility to explosion.

Koenen steel tube test (thermal sensitivity):

The test material was tested as received. Steel tubes were filled to a height of 60 mm. The filled test item was weighted. The tube was heated by four propane burners. Three tests with a 6 mm orifice plate and three tests with a 2 mm orifice plate were performed.

Hole diameter (mm)	Weight (g) (v: 27.14 cm^3)	T1(s)	T2(s)	Results
6 6 6	26.541 26.425 26.426	137 117 107	281 245 243	No explosion No explosion No explosion
2 2 2	26.614 26.405 27.048	100 97 104	229 218 232	No explosion No explosion No explosion

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)

MCPP-P 2-EHE has been determined not to have thermal sensibility to explosion.

Interpretation of results:

GHS criteria not met

Conclusions:

MCPP-P 2-EHE has been determined not to have axplosive properties.

Executive summary:

A study according to Directive 92/69/EEC A.14 and OPPTS Test Guideline 830.6316 was performed to determine the explosive properties of the test substance. Thermal sensitivity following Koenen steel tube test, and shock test were performed. In the shock test, a weight of 10 kg from a height of 40 cm was dropped onto the assembly containig 40 mm³ of the test item, six times. no ignition or explosion were observed during the six test. In the Koenen steel tube test, a steel tube was filled to a height of 60 mm with the test item and weighted. The tube was heated by four propane burners. Three tests were performed with a 6 mm orifice plate and three test with a 2 mm orifice plate. no explosion was observed in all six test. Based on the results from both test series was determined that MCPP-P 2-EHE has no explosive properties.

Description of key information

The substance has been determined not to have explosive properties.

Key value for chemical safety assessment

Explosiveness:

non explosive

Additional information

A study according to Directive 92/69/EEC A.14 and OPPTS Test Guideline 830.6316 was performed to determine the explosive properties of the test substance [MCPP-P Task Force, 1999]. Thermal sensitivity following Koenen steel tube test, and shock test were performed. In the shock test, a weight of 10 kg from a height of 40 cm was dropped onto the assembly containig 40 mm³ of the test item, six times. no ignition or explosion were observed during the six test. In the Koenen steel tube test, a steel tube was filled to a height of 60 mm with the test item and weighted. The tube was heated by four propane burners. Three tests were performed with a 6 mm orifice plate and three test with a 2 mm orifice plate. no explosion was observed in all six test. Based on the results from both test series was determined that MCPP-P 2-EHE has no explosive properties.

Justification for classification or non-classification

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

Based on the chemical structure and taking into account the provisions laid down in Regulation (EC) No 1272/2008, as amended for the tenth time in Regulation (EC) No 2017/776, the substance is not considered to be classified for explosive properties.