4-Butoxy-2,3-difluor-4'-methyl-1,1'-biphenyl

Flash point

Link to relevant study record(s)

Reference

Endpoint:

flash point of flammable liquids

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2017-03-02

Reliability:

1 (reliable without restriction)

Qualifier:

according to guideline

Guideline:

EU Method A.9 (Flash-Point)

Deviations:

no

GLP compliance:

no

Type of method:

non-equilibrium method closed cup

Flash point apparatus:

Pensky-Martens apparatus

Key result

Flash point:

198 °C

Atm. press.:

1 013 hPa

Preliminary test

Test item / g	Starting temperature /°C	Temperature /°C	Ignition + / -
4	100	202	+
4	100	200	+
4	180	202	+

 

Main test

Test item / g	Temperature /°C	Ignition + / -	Barometric pressure / hPa
4	200.0	+	1005.5
4	195.0	-	1005.5
4	196.0	-	1005.5
4	197.0	-	1005.5
4	198.0	-	1005.5
4	199.0	+	1005.5
4	198.0	+	1005.5
4	197.0	-	1005.5
4	197.5	-	1005.5
4	198.0	+	1005.5
4	197.5	-	1005.5
4	198.0	+	1005.5
4	197.5	-	1005.5

 

The lowest flash point corrected to 1013 hPa is rounded down with an accuracy of 0.5 °C: 198.0 °C.

Interpretation of results:

GHS criteria not met

Conclusions:

The flash point of the test item was determined to be 198.0 °C (corrected and rounded down to the nearest multiple of 0.5 °C) at 1013.25 hPa.

Executive summary:

A study was conducted according to Regulation (EC) No 440/2008 method A.9 to determine flash point of the test item using a closed cup method (reference 4.11 -1). The start temperature for the main test (200 °C) was chosen based on the preliminary test. Therefore 4 mL of the test item are filled in the cup and heated to the estimated temperature. Then the substance was maintained for at least 1 minute at this temperature. The flame was dipped in the cup and it was checked if ignition occurred. The measured flash point at atmospheric pressure was corrected to a standard pressure of 1013 hPa. The flash point was determined to be at 198.0 °C (corrected to the ambient pressure). Thus, the flash point of the test item was determined to be 198.0°C (corrected and rounded down to the nearest multiple of 0.5 °C) at 1013.25 hPa.

Description of key information

The flash point of the test item was determined to be 198.0 °C (corrected and rounded down to the nearest multiple of 0.5 °C) at 1013.25 hPa.

Key value for chemical safety assessment

Flash point at 101 325 Pa:

198 °C

Additional information

A study was conducted according to Regulation (EC) No 440/2008 method A.9 to determine flash point of the test item using a closed cup method (reference 4.11 -1). The start temperature for the main test (200 °C) was chosen based on the preliminary test. Therefore 4 mL of the test item are filled in the cup and heated to the estimated temperature. Then the substance was maintained for at least 1 minute at this temperature. The flame was dipped in the cup and it was checked if ignition occurred. The measured flash point at atmospheric pressure was corrected to a standard pressure of 1013 hPa. The flash point was determined to be at 198.0 °C (corrected to the ambient pressure). Thus, the flash point of the test item was determined to be 198.0°C (corrected and rounded down to the nearest multiple of 0.5 °C) at 1013.25 hPa.