AERO 5100 PROMOTER

Boiling point

Link to relevant study record(s)

Reference

Reference 1

Endpoint:

boiling point

Type of information:

experimental study

Adequacy of study:

key study

Study period:

17 March to 15 May 1998

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

EU Method A.2 (Boiling Temperature)

Qualifier:

according to guideline

Guideline:

OECD Guideline 103 (Boiling Point)

GLP compliance:

yes

Type of method:

method according to Siwoloboff

Key result

Boiling pt.:

225.5 °C

Atm. press.:

1 013 hPa

The results of duplicate boiling point determinations were as follows:

 

Run	Pressure [hPa]	Boiling point [°C]
		Observed value	Corrected Value
Run I	1012	225.0	225.0
Run II	1012	225.5	225.5

 

Conclusion

The boiling temperature of the test substance was found to be 225.5 °C.

Reference 2

Endpoint:

boiling point

Type of information:

experimental study

Adequacy of study:

supporting study

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

comparable to guideline study

Qualifier:

equivalent or similar to guideline

Guideline:

OECD Guideline 103 (Boiling Point/Boiling Range)

GLP compliance:

not specified

Type of method:

differential scanning calorimetry

Boiling pt.:

222 °C

Remarks on result:

other: The pressure is not reported

Results

The only thermal even that occurred on the test substance was boiling. After return to baseline, the test substance continues to evaporate.

 

The results of the differential scanning calorimetry are summarized in the following table.

 

	Test Substance specimen 1	Test Substance specimen 2	Toluene Reference
Boiling point (°C)	222	223	111
Boiling Point Range (°C)	222 - 254	223 - 255	111 - 116
Enthalpy (J/g)	408	398	407
Initial sample weight (mg)	3.55	3.72	3.58
Final Sample weight (mg)	2.00	2.04	2.11

 

The literature value for the boiling point of toluene is 110.6 °C

 

The test substance lost weight as expected since the tests were conducted in a pan with a pierced lid.

 

Result Summary

The test substance DSC profile is provided below scanned from 50 °C to 300 °C. The boiling point as noted by the onset is 222 °C. After the test substance reaches boiling point it continues to evaporate. Thus a scan up to 500 °C was not required.

Description of key information

Boiling point: 225.5 °C at 1013 hPa (EU Method A.2, method according to a modified Siwoloboff), 222 °C (DSC)

Key value for chemical safety assessment

Boiling point at 101 325 Pa:

225.5 °C

Additional information

A boiling point of 222 °C was obtained for a purified batch of the substance.

The obtained value does not differ significantly from those of the non-purified substance, which is therefore considered as key value since is related to the "technical purity" and better represents the reality.