Bottom residues resulting from the synthesis of isoprene and isoamylene by dehydrogenation of isopentane

Flash point

Administrative data

Endpoint:

flash point of flammable liquids

Type of information:

experimental study

Adequacy of study:

key study

Study period:

25. July 2011

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

other: study performed according to EU guideline but not under GLP conditions

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2011

Report date:

2011

Materials and methods

Test guideline

Qualifier:

according to guideline

Guideline:

EU Method A.9 (Flash-Point)

Deviations:

no

GLP compliance:

no

Type of method:

closed cup

Test material

Test material information

Constituent 1

Reference substance name:

Absorbent N grade A

IUPAC Name:

Absorbent N grade A

Details on test material:

- Name of test material (as cited in study report): Absorbent N grade A
- Substance type: UVCB
- Physical state: Brown liquid
- Stability under test conditions: months
- Storage condition of test material: room temperature, in the dark

Results and discussion

Flash point

Flash point:

< -5 °C

Atm. press.:

1 013.3 hPa

Any other information on results incl. tables

Individual Results

Weight / g	Flash point / °C measured	Atmospheric pressure / hPa	Flash point / °C corrected
64.8	-4.8	1002.0	-4.53
70.2	-4.9	1002.0	-4.63

 

As the approximate value of the flash point was known the performance of the preliminary test was not necessary. In the main test the data points were determined by heating rate 1 K/min, as proposed in DIN EN ISO 13736.

The mean flash point corrected to 1013 hPa is -4.6 °C.

The final flash point rounded down with an accuracy of 0.5 °C is -5.0 °C.

Applicant's summary and conclusion

Conclusions:

The flash point of the test item is -5.0 °C under atmospheric conditions (1013.3 hPa).

Executive summary:

The flash point of the test item is -5.0 °C under atmospheric conditions (1013.3 hPa).