Reaction mass of 1-chloro, 2-(difluoromethoxy) -1,1,2,3,3,3-hexafluoropropane and 2-difluoromethoxy-1,1,1,2,3,3,3-eptafluoro-propane

Explosiveness

Link to relevant study record(s)

Reference

Reference 1

Endpoint:

explosive properties of explosives

Type of information:

experimental study

Adequacy of study:

weight of evidence

Study period:

From July 2016 to May 2017

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

UN Manual of Tests and Criteria: Part I: Classification procedures, test methods and criteria relating to explosives of Class 1

Version / remarks:

Series 3 type (a) Test 3 (a) (ii) (Part I, Section 13.4.2)

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Specific details on test material used for the study:

SOURCE OF TEST MATERIAL
- Batch No.of test material: 24/02/2016
- Expiration date of the lot/batch: July 2021
- Purity test date: July 2016

STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
- Storage condition of test material: In darkness at room temperature

Key result

Parameter:

sensitiveness to impact: impact energy (J)

Value:

50

Remarks on result:

not sensitive to impact using an impact energy of 40 J

Key result

Test series:

UN Test series 3

Method:

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

Parameter:

limiting impact energy (J)

Value:

50

Result:

result is considered "-" (negative)

- the result “decomposition or “no reaction” was observed at the impact energies of 10 J

- then the result “decomposition or “no reaction” was observed int the test series at stepwise increased impact energies up to 50 J (15-20-25-30-35-40-50 J)

- Then the result “decomposition or “no reaction” was observed in the repeated 6 times series of 50 J.

Therefore, The result of the test was “negative”,

Interpretation of results:

GHS criteria not met

Conclusions:

The result of the test was “negative”, thus, the test item was not considered to be too dangerous to transport in the form tested.

Executive summary:

The sensitiveness of the test item to dropweight and to determine if it is too dangerous to transport in the form tested according to the

United Nations Recommendations on the Transport of Dangerous Goods Manual of Tests and Criteria - Sixth revised edition (2015) Series 3 type (a) Test 3 (a) (ii) (Part I, Section 13.4.2) EC No. 1272/2008 (CLP) and under GLP compliance.

The result “decomposition or “no reaction” was observed in the repeated 6 times test with an impact energy of 50 J.

Therefore, the result of the test was “negative”, thus, the test item was not considered to be too dangerous to transport in the form tested.

Reference 2

Endpoint:

explosive properties of explosives

Type of information:

experimental study

Adequacy of study:

weight of evidence

Study period:

From July 2016 to May 2017

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

UN Manual of Tests and Criteria: Part I: Classification procedures, test methods and criteria relating to explosives of Class 1

Version / remarks:

Series 1 type (b) Test 1 (b) (Part I, Section 11.5.1)

Deviations:

yes

Remarks:

deviation was not considered to have affected the quality or the interpretation of the results obtained.

GLP compliance:

yes (incl. QA statement)

Specific details on test material used for the study:

SOURCE OF TEST MATERIAL
- Batch No.of test material: 24/02/2016
- Expiration date of the lot/batch: July 2021
- Purity test date: July 2016

STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
- Storage condition of test material: In darkness at room temperature

Key result

Parameter:

thermal sensitivity - Koenen test: limiting diameter (mm)

Value:

1

Remarks on result:

not thermal sensitive if heated under defined confinement

Key result

Test series:

UN Test series 1

Method:

UN Test 1 (b): Koenen test

Parameter:

limiting diameter (mm)

Value:

1

Result:

result is considered "-" (negative)

As a results, The limiting diameter of a substance is the largest diameter of the orifice at which the result “explosion” was obtained. If no “explosion” was obtained with a diameter of 1.0 mm, the limiting diameter was recorded as being less than 1.0 mm.

- In the Assay with orifice plate of 20.0 mm: the result "O" Tube unchanged was observed after 5 min.

- In the series with orifices plates of 12.0 - 8.0 - 5.0 - 3.0 - 2.0 - 1.5 - 1.0 mm, the results "O" Tube unchanged were observed after 5 min for each nozzle plate opening.

Interpretation of results:

GHS criteria not met

Conclusions:

The result was considered “negative” and the substance has shown no effecton heating under confinement as the limiting diameter was less than 1.0 mm.

Executive summary:

The sensitiveness of a test item to the effect of intense heat under high confinement was determined according the

United Nations Recommendations on the Transport of Dangerous Goods Manual of Tests and Criteria - Sixth revised edition (2015) Series 1 type (b) Test 1 (b) (Part I, Section 11.5.1) EC No. 1272/2008 (CLP) and ubder GLP compliance.

In the Assay with orifice plate of 20.0 mm and in series with orifices plates of 12.0 - 8.0 - 5.0 - 3.0 - 2.0 - 1.5 - 1.0 m, the results "O" Tube unchanged were observed after 5 min for each nozzle plate opening.

Therefore the result was considered “negative” and the substance has shown no effecton heating under confinement as the limiting diameter was less than 1.0 mm.

Reference 3

Endpoint:

explosive properties of explosives

Type of information:

experimental study

Adequacy of study:

key study

Study period:

From July 2016 to May 2017

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

no guideline followed

Principles of method if other than guideline:

The objective of the test is to determine the behaviour of the test item during a heating procedure within a nitrogen atmosphere and at the atmospheric pressure using the Differential Scanning Calorimetry method (DSC). This thermodynamic information allows determining if the test item gives exothermic reactions upon heating and thus a more complete test on explosive properties is relevant.

GLP compliance:

yes (incl. QA statement)

Specific details on test material used for the study:

SOURCE OF TEST MATERIAL
- Batch No.of test material: 24/02/2016
- Expiration date of the lot/batch: July 2021
- Purity test date: July 2016

STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
- Storage condition of test material: In darkness at room temperature

Key result

Test series:

UN Test series 1

Method:

UN Test 1 (c) (ii): Internal ignition test

Parameter:

other: exothermic reactions

Result:

result is considered "-" (negative)

Remarks on result:

other: Neither endothermic nor exothermic peak was observed up to 600 °C under the experimental conditions used.

Neither endothermic nor exothermic peak was observed up to 600 °C under the experimental conditions used.

Interpretation of results:

other: This thermodynamic information allows knowing that the test item shall not be classified as explosive

Conclusions:

In the temperature range used, no exothermic reaction was observed.

Executive summary:

In the temperature range used, no exothermic reaction was observed.

Description of key information

Three reliable studies performed according to guidelines from the UN Recommendations on the Transport of Dangerous Good, Manual of Tests and Criteria, test series 1 and 3 were performed. The tests were GLP compliant.

In the Koenen test the substance has shown no effect on intense heating under high confinement as the limiting diameter was less than 1.0 mm.

In the Bam Fallhammer test the substance has shown no effect to the shock of a falling hammer on a steel anvil.

A test using the Differential Scanning Calorimetry method (DSC) was performed in order to determined the behaviour of the test item during a heating procedure within a nitrogen atmosphere and at the atmospheric pressure. In this test, in the temperature range used, no exothermic reaction was observed.

Basing on the results on the tests, the substance is not be classified as explosive.

Key value for chemical safety assessment

Explosiveness:

non explosive

Justification for classification or non-classification

Basing on the negative results of the 3 reliable tests the test item is not classified for explosive properties, according to EU GHS (CLP) criteria.