Imidazolium compounds, 2-C17-unsatd.-alkyl-1-(2-C18-unsatd. amidoethyl)-4,5-dihydro-N-methyl, Me sulfates

Boiling point

Link to relevant study record(s)

Reference

Reference 1

Endpoint:

boiling point

Type of information:

experimental study

Adequacy of study:

key study

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

OECD Guideline 103 (Boiling point/boiling range)

Qualifier:

according to guideline

Guideline:

EU Method A.2 (Boiling Temperature)

GLP compliance:

not specified

Type of method:

differential scanning calorimetry

Key result

Boiling pt.:

317 °C

Atm. press.:

1 013 hPa

Remarks on result:

other: +- 2°C

The DSC curves showed a large endothermic peak in the range between 293 -337 °C. The heat flow in the peak area was determined to be approximately 110 J/g, which lies within the range of typicality for the boiling process of an organic substance. The boiling point was therefore identified as the temperature where the observed signal is at its peak, 317 °C.

Conclusions:

The data from this experimental result shows that the boiling point of the test substance is 317 °C± 2 °C.

Executive summary:

The data from this experimental result shows that the boiling point of the test substance is 317 °C ± 2 °C.

Reference 2

Endpoint:

boiling point

Type of information:

calculation (if not (Q)SAR)

Adequacy of study:

supporting study

Reliability:

4 (not assignable)

Rationale for reliability incl. deficiencies:

other: no information available whether the calculation model is validated for the substance under investigation

Principles of method if other than guideline:

The boiling point of imidazolium compounds, 2-(C17 and C17-unsatd. alkyl)-1-[2-(C18 and C18-unsatd. amido)ethyl]-4,5-dihydro-1-methyl, Me sulfates was calculated using EPIWIN v3.20, MPBPWIN v1.42.

Type of method:

other: calculation

Key result

Boiling pt.:

864.62 °C

A boiling point of 864.62°C was calculated using EPIWIN v3.20, MPBPWIN v1.42. Due to missing information about the applicability of the calculation model in respect to the substance under investigation the result should be treated with care.

Conclusions:

The boiling point of imidazolium compounds, 2-(C17 and C17-unsatd. alkyl)-1-[2-(C18 and C18-unsatd. amido)ethyl]-4,5-dihydro-1-methyl, Me sulfates was calculated using EPIWIN v3.20, MPBPWIN v1.42. The calculation yielded a value of 864.62°C. Due to missing information about the applicability of the calculation model in respect to the substance under investigation the result should be treated with care.

Reference 3

Endpoint:

boiling point

Type of information:

migrated information: read-across from supporting substance (structural analogue or surrogate)

Adequacy of study:

supporting study

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

other: Guideline study according to EEC A.2

Qualifier:

according to guideline

Guideline:

EU Method A.2 (Boiling Temperature)

GLP compliance:

yes (incl. QA statement)

Type of method:

differential scanning calorimetry

Key result

Boiling pt.:

ca. 310 °C

Atm. press.:

>= 98.5 - <= 99 kPa

Decomposition:

yes

Decomp. temp.:

>= 310 °C

Remarks on result:

other: Capillary test

Key result

Boiling pt.:

312.9 °C

Atm. press.:

>= 98.5 - <= 99 kPa

Remarks on result:

other: 28.2% loss off mass

Key result

Boiling pt.:

318.8 °C

Atm. press.:

>= 98.5 - <= 99 kPa

Remarks on result:

other: 29.6% loss of mass

For the two differential scanning calorimetry tests, a black melt remained at the end of the test.

Conclusions:

According to EU Method A.2 (Boiling Temperature) , the test item started boiling at ca. 310 °C. Simultaneous decomposition of the test item was also observed at this temperature.

Executive summary:

According to EU Method A.2 (Boiling Temperature) , the test item started boiling at ca. 310 °C. Simultaneous decomposition of the test item was also observed at this temperature.

Description of key information

The boiling point of the oleic-acid based IQAC, DMS quaternised is 317 °C ± 2 °C. 

Key value for chemical safety assessment

Boiling point at 101 325 Pa:

317 °C

Additional information

The DSC curves showed a large endothermic peak in the range between 293 -337 °C. The boiling point was therefore identified as the temperature where the observed signal is at its peak, 317 °C.