Benzene, 1-chloro-2,3-dimethyl-

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:

2004-11-29 to 2004-12-10

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

EU Method A.9 (Flash-Point)

Version / remarks:

1992

Deviations:

no

Qualifier:

according to guideline

Guideline:

ASTM D93 (Standard test methods for flash point by pensky-martens closed cup tester)

Deviations:

no

GLP compliance:

yes

Type of method:

closed cup

Flash point apparatus:

Pensky-Martens apparatus

Dynamic viscosity of test material:

1.34 mPa*s at 25°C (predicted, US EPA T.E.S.T. v. 4.2; consensus model). The consensus model is based on the outcome of 5 different models (average), resulting in a range between 0.91 mPa*s and 2.04 mPa*s.

Key result

Flash point:

71.9 °C

Atm. press.:

1 013 hPa

Reference Substance: The average (n = 2) flash-point of the Reference Substance n-decane was 52.3 ± 0.2 °C, adjusted to 101.3 kPa. This flash-point was not significantly different from the reported (ASTM D 93) value of 53 ± 2 °C, indicating acceptable method accuracy.

Test Substance: The average (n = 2) observed flash-point of 1-chloro-2,3-dimethylbenzene was 71.9 ± 0.2 °C, adjusted to 101.3 kPa.

Results:

Dup.	Substance	Observed Flashpoint (°C)	Adjusted Flashpoint (°C)				Pres. (kPa)
				Average	Dev.	RD
				(°C)	(°C)
Run 1	n-Decane	53.0	52.6				103.0
Run 2	n-Decane	52.5	52.1	52.3	0.2	0.5%	102.9
Run 1	test item	72.5	72.1				102.8
Run 2	test item	72.0	71.7	71.9	0.2	0.3%	102.6

Interpretation of results:

Category 4 (combustible liquids) based on GHS criteria

Conclusions:

Flash point (EU-method A.9): 71.9 °C at 1013 hPa

Executive summary:

The flash point for 1-chloro-2,3-dimethylbenzene was determined according to EU method A.9 and ASTM D 93 (Pensky-Martens Closed Cup) compliant with GLP.

The method was validated with reference substance n-decane:

The average (n = 2) observed flash-point of n-decane was 52.3 ± 0.2 °C, adjusted to 101.3 kPa, which was not significantly different from the reported (ASTM D 93) value of 53 ± 2 °C,

indicating acceptable method performance.

For the test Substance, the average (n = 2) observed flash-point was 71.9 ± 0.2 °C, adjusted to 101.3 kPa.

Description of key information

Flash point (EU-method A.9): 71.9 °C at 1013 hPa

Key value for chemical safety assessment

Flash point at 101 325 Pa:

71.9 °C

Additional information

The flash point for 1-chloro-2,3-dimethylbenzene was determined according to EU method A.9 and ASTM D 93 (Pensky-Martens Closed Cup) compliant with GLP.

The method was validated with reference substance n-decane:

The average (n = 2) observed flash-point of n-decane was 52.3 ± 0.2 °C, adjusted to 101.3 kPa, which was not significantly different from the reported (ASTM D 93) value of 53 ± 2 °C,

indicating acceptable method performance.

For the test Substance, the average (n = 2) observed flash-point was 71.9 ± 0.2 °C, adjusted to 101.3 kPa.