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

Auto flammability

Link to relevant study record(s)

Reference

Endpoint:

auto-ignition temperature (liquids)

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:

according to guideline

Guideline:

EU Method A.15 (Auto-Ignition Temperature (Liquids and Gases))

Deviations:

yes

Remarks:

the maximal temperature tested was 554 °C instead of 600 °C due to an oven disfunction. This 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

Auto-ignition temperature:

> 554 °C

Atm. press.:

ca. 1 013.25 hPa

*Preliminary test

Volume of test item injected in the oven: 70 µL

 

Table 1: Results of the preliminary test

	Temperature of the assay (°C)		Auto-ignition		Maximal temperature of the air recorded in the center of the test flask after auto-ignition(°C)		Atmospheric pressure (kPa)	Relative humidity (%)
Assay No.	Observed	Corrected	Y / N	Lag(s)	Observed	Corrected
1	101	101	No	/	/	/	98.3	36
2	144	144	No	/	/	/	98.3	35
3	198	198	No	/	/	/	98.3	34
4	255	255	No	/	/	/	98.2	35
5	306	306	No	/	/	/	98.1	37
6	357	357	No	/	/	/	98.1	38
7	400	400	No	/	/	/	98.0	38
8	455	455	No	/	/	/	98.0	38
9	505	505	No	/	/	/	98.0	35
10	554	554	No	/	/	/	98.0	37

 

Taking into account the results obtained in the preliminary assay, no main test was performed.

Conclusions:

No auto-ignition temperature was observed up to 554 °C (corrected value).

Executive summary:

The determination of the auto-ignition temperature of test item was performed according to the Commission Regulation (EC) N° 440/2008 A.15 method.

The test is repeated at different temperatures (from about 100°C to about 600°C) until the minimum value of the ignition temperature was observed

No auto-ignition temperature was observed up to 554 °C (corrected value).

Description of key information

One reliable study is available for this endpoint. In this study, the auto-ignition temperature of the test item was determined accordingly the EC A.15 method. The study was GLP compliant.

As a result, only a preliminary test was performed since no auto-ignition temperature was observed up to 554 °C.