Ethane, 1,2-dichloro-1-[difluoro(trifluoromethoxy)methoxy]-1,2,2-trifluoro-

Flammability

Link to relevant study record(s)

Reference

Endpoint:

flammable gases

Remarks:

Vapor flammability

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2021

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

EN 1839, Method B (Determination of explosion limits of gases and vapours)

Version / remarks:

2017

Deviations:

not specified

GLP compliance:

no

Other quality assurance:

ISO/IEC 17025 (General requirements for the competence of testing and calibration laboratories)

Specific details on test material used for the study:

Batch No. 15-TV10790
Purity: 98%
Expiry date: April 2025

Key result

Parameter:

lower explosion limit

Remarks on result:

other: In the range between 1.8 and 75.5% (i.e. max achievable concentration at 65°C), no inflammation occurred.

Key result

Parameter:

upper explosion limit

Remarks on result:

other: In the range between 1.8 and 75.5% (i.e. max achievable concentration at 65°C), no inflammation occurred.

The vapours of the substance were tested in the contration range between 1.8 and 75.5% (i.e. max achievable concentration at 65°C), no inflammation occurred.

Interpretation of results:

study cannot be used for classification

Remarks:

The substance is a liquid therefore the classification for flammability is based on the flash point value. This study is therefore not suitable for classification purposes but it informs on the possibility that the vapors generate an explosive atmosphere at 65°C.

Conclusions:

The vapors of the substance had no flammable range in air at the temperature of 65°C and atmospheric pressure.

Executive summary:

The substance was evaluated for the possibility of forming an explosive atmosphere in air. The work was conducted according to the test method DIN EN 1839:2017. The work was accreditated under ISO 17025.

The test was conducted in a 5 L sphere at the temperature of approx. 65°C. The tests were carried out in air. A permanent spark with an ignition energy of approx. 10 Joule was used as ignition source. The vapour concentrations were varied between approx. 2 Vol% and the maximum vapour concentration achievable at test temperature or until a spark could no longer be produced due to the increased of breakdown voltage for overly concentrated mixtures.

Under the tested conditions the vapors of the substance did not show any sign of flammability.

Description of key information

MOVE 3 Adduct is a Not Flammable Liquid. Moreover it is not pyrophoric, not self-reactive and it does not emit flammable gases in contact with water.
Under the tested conditions (temperature of 65°C, atmospheric pressure) the vapors did not show sign of flammability up to the maximum achievable concentration.

Key value for chemical safety assessment

Flammability:

not classified

Justification for classification or non-classification

As the substance is a liquid, the assessment of the hazardous properties for flammability is based on the flash point value. No flash-point was observed up to the boiling temperature (BP = 72 °C) and therefore the substance does not meet the GHS classifcation criteria for Flammability of Liquid.
According to the Guidance on the Application of the CLP Criteria Version 5.0 – July 2017, for halogenated compounds which do not have flash point up to 60 °C the flammability/explosion of vapours in air need to be investigated. The experimental determination conducted at the temperature of 65°C and atmospheric pressure provided no sign of flammability under the test conditions.

Moreover the molecular structure of the test substance does not contain groups that indicate potential self-reactivity, reactivity with water or pyrophoric properties and practical experience in handling the substance confirms the lack of these properties. Based on this the substance has not to be classified either as "substances or mixtures which in contact with water emit flammable gases", "self-reactive substance" or as "pyrophoric substance".