Imidazolium compounds, 2-(C9-19 and C9-19-unsatd. alkyl)-1-[(C10-20 and C10-20-unsatd. amido)ethyl]-4,5-dihydro-1-Me, Me sulfates

Boiling point

Link to relevant study record(s)

Reference

Endpoint:

boiling point

Type of information:

experimental study

Adequacy of study:

key study

Study period:

From September 01, 2017 to October 30, 2017

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

EU Method A.2 (Boiling Temperature)

Deviations:

not specified

Qualifier:

according to guideline

Guideline:

OECD Guideline 103 (Boiling Point)

Deviations:

not specified

GLP compliance:

yes

Type of method:

differential scanning calorimetry

Key result

Boiling pt.:

ca. 208.1 - ca. 211.5 °C

Atm. press.:

ca. 1 atm

Decomposition:

no

Remarks on result:

other: Boiling point range 1

Key result

Boiling pt.:

ca. 312.5 - ca. 319.6 °C

Atm. press.:

ca. 1 atm

Decomposition:

no

Remarks on result:

other: Boiling point range 2

Result   

Boiling Range 1: 208.1 - 211.5°C

Boiling Range 2: 312.5 - 319.6°C

	1^stEndotherm	2^ndEndotherm
	Run 1 (F)
Endotherm onset temperature (°C)	208.12	312.50
	Run 2 (G)
Endotherm onset temperature (°C)	211.45	319.22
	Run 3 (H)
Endotherm onset temperature (°C)	210.63	319.59
	Run 4 (I)
Endotherm onset temperature (°C)	208.20	314.47

 

Comment

As the test substance is known to be a UVCB Substance it is not unexpected that the test material has multiple boiling points. It should be noted that the test substance on average lost approximately 70% of the sample weight.

Conclusions:

Under the study conditions, the overall boiling point of the test substance can be considered to range from 208.1 to 319.6°C.

Executive summary:

A study was conducted to determine the boiling point of the test substance using the Differential Scanning Calorimetry (DSC) method according to EU Method A2 and OECD Guideline 103, in compliance with GLP. In the study, there were two endotherms indicating two boiling point ranges, i.e., 208.1 to 211.5°C and 312.5 to 319.6°C. As the test substance is known to be an UVCB substance, the study author concluded that the test material may have multiple boiling points due to boiling of different components at different temperatures. It also could be due to loss of water, as the test substance lost approximately 70% of the sample weight. Based on the study results boiling point ranges of the test substance were determined to be 208.1 to 211.5°C and 312.5 to 319.6°C (Chilworth, 2017). Under the study conditions, the overall boiling point of the test substance can be considered to range from 208.1 to 319.6°C.

Description of key information

The Boiling point of the test substance was determined using the DSC method according to OECD Guideline 103 and EU Method A.2 (Chilworth, 2017).

Key value for chemical safety assessment

Boiling point at 101 325 Pa:

319.6 °C

Additional information

Due to the UVCB nature of the test substance and multiple observed endotherms, the overall boiling point of the test substance can be considered to range from 208.1 to 319.6°C at 101325 Pa.