1-ethoxy-2,3-difluorobenzene

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:

2000-09-21

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

ISO 3679 (Determination of flash point - Rapid equilibrium closed cup method)

Version / remarks:

ISO Standard 3679 (1983)

Deviations:

no

Qualifier:

according to guideline

Guideline:

EU Method A.9 (Flash-Point)

Version / remarks:

EEC Commission Directive 92/69 - A9 method (1992)

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Type of method:

equilibrium method closed cup

Flash point apparatus:

Setaflash apparatus

Key result

Flash point:

70.5 °C

Atm. press.:

101.3 kPa

PRELIMINARY TEST

Experimental conditions:

Atmospheric pressure: 97 kPa.

Relative humidity: 54% of saturated air.

Apparatus (SEPC Code number):

Automatic Setaflash closed tester (Stanhope-Seta, England): 193.

Syringe: 2 ml capacity.

Results:

Observed flash-point of the test item: 70°C.

MAIN TEST

Experimental conditions:

Atmospheric pressure: see results below.

Relative humidity: 54% of saturated air.

Results:

Assay No.	Observed flash-point in °C	Atmospheric pressure in kPa	Corrected flash-point in °C
1	69	97	70
2	70	97	71
3	69	97	70

 

The observed flash-point was corrected to a pressure of 101.3 kPa following the formula:

Corrected flash-point = observed flash-point + C

With

C = (101.3 - P) -i- 4

where:

C is the correction, in degrees Celsius,

P is the atmospheric pressure expressed in kPa during each determination.

Interpretation of results:

GHS criteria not met

Conclusions:

The mean flash-point of the test item (corrected at the pressure of 101.3 kPa) was determined to be 70.5 °C ± 1.0 °C.

Executive summary:

A study was conducted according to Directive 92/69/EEC method A.9 to determine flash point of the test item using an equilibrium closed cup method. Aliquotes of 2 mL test item were introduced in the Setaflash tester. A preliminary test series was performed in order to determine a range of temperature between which the flashpoint is included. Therefore, several assays were performed from 25 °C and 75 °C, with a maximum interval of 5 °C, until ignition was observed. Subsequently, a main test series  of three assays was performed to find the precise value of the flash-point. The measured flash point at atmospheric pressure was corrected to a standard pressure of 1013 hPa. The corrected flash point was determined to be at 70.5 °C.

 

Description of key information

The mean flash-point of the test item (corrected at the pressure of 101.3 kPa) was determined to be 70.5 °C ± 1.0 °C (reference 4.11-1).

Key value for chemical safety assessment

Flash point at 101 325 Pa:

70.5 °C

Additional information

A study was conducted according to Directive 92/69/EEC method A.9 to determine flash point of the test item using an equilibrium closed cup method. Aliquotes of 2 mL test item were introduced in the Setaflash tester. A preliminary test series was performed in order to determine a range of temperature between which the flashpoint is included. Therefore, several assays were performed from 25 °C and 75 °C, with a maximum interval of 5 °C, until ignition was observed. Subsequently, a main test series  of three assays was performed to find the precise value of the flash-point. The measured flash point at atmospheric pressure was corrected to a standard pressure of 1013 hPa. The corrected flash point was determined to be at 70.5 °C (reference 4.11-1).