Octan-1-ol, ethoxylated

Boiling point

Administrative data

Endpoint:

boiling point

Type of information:

experimental study

Adequacy of study:

key study

Study period:

6 Dec 2018 - 6 Feb 2019

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2019

Report date:

2019

Materials and methods

Test guideline

Test guideline 1

Qualifier:

according to guideline

Guideline:

EU Method A.2 (Boiling Temperature)

Test guideline 2

Qualifier:

according to guideline

Guideline:

OECD Guideline 103 (Boiling Point)

GLP compliance:

no

Remarks:

study conducted in a facility which operates in accordance with Good Laboratory Practice principles; however, no claim of GLP compliance was intended nor is made for this study

Type of method:

differential scanning calorimetry

Test material

Test material information

Constituent 1

Reference substance name:

Octan-1-ol, ethoxylated

EC Number:

500-058-1

EC Name:

Octan-1-ol, ethoxylated

Cas Number:

27252-75-1

Molecular formula:

C10H22O2

IUPAC Name:

Octan-1-ol, ethoxylated

Test material form:

liquid

Results and discussion

Boiling point

Boiling pt.:

204 °C

Atm. press.:

102 kPa

Decomposition:

yes

Decomp. temp.:

ca. 280 °C

Remarks on result:

other: partial boiling from 204 °C followed by decomposition

Any other information on results incl. tables

Summary of thermographic data

Thermal event	Interpretation	Temperature (°C) of determination
		1	2	3	4
Endotherm	Onset of boiling	114.06	112.01	204.04	203.36
Exotherm	Approx. onset of decomposition	-	-	ca. 280	ca. 280

After heating to 400 °C, the samples had lost approximately 100% of their original weight for Determinations 1 and 2.

After heating to 400 °C, the samples had lost approximately 87% of their original weight for Determinations 3 and 4.

Discussion of results:

It was considered that the test item began to boil at 204 °C in Determinations 3 and 4. These used the pre-pierced crucible lid which is designed to measure boiling points by creating a self-generated atmosphere. However, Determinations 1 and 2 indicated an onset of 113 °C but this was considered to be pre-boiling volatisation of the test item.

After the boiling had started, it was observed in the thermograms that the trace began to go exothermic at approximately 280 °C; this was considered to be the remaining components beginning to decompose. In additional, the appearance of the residue was pale yellow after being heated to 300°C but dark brown by the time it reached 400 °C. The approximate onset temperature of decommission was not evident in Determinations 1 and 2 due to the profile of their thermogram.

There were some small thermal events prior to boiling in Determinations 3 and 4, but these were considered as not significant with regard to the boiling point of the test item.