TEA-Esterquat

Boiling point

Link to relevant study record(s)

Reference

Endpoint:

boiling point

Type of information:

experimental study

Adequacy of study:

key study

Study period:

02 December 2020 - 08 March 2021

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

OECD Guideline 103 (Boiling Point)

Qualifier:

according to guideline

Guideline:

EU Method A.2 (Boiling Temperature)

GLP compliance:

yes

Type of method:

differential scanning calorimetry

Key result

Boiling pt.:

ca. 123 °C

Atm. press.:

>= 101 - <= 103 kPa

Decomposition:

yes

Decomp. temp.:

ca. 280 °C

Remarks on result:

other: partial boiling

The endotherm that occurred over the approximate range 123 °C to 205 °C was considered to be boiling of a component or components with a weight loss of approximately 3% of its original weight. This endotherm didn’t occur in the second heating phase of Determination 6.

A second endotherm started from approximately 204 °C and was considered to be continued boiling of the components in the test item. When the test item had reached 250 °C and 300 °C it had lost approximately 7% and 10% of its original weight respectively.

Following on from the partial boiling, a decomposition temperature of approximately 280 °C was taken from the point at which the thermographic profile showed signs of becoming

erratic, which is often an indication of decomposition. As a result of the boiling and decomposition events combining, the onset of decomposition could only be approximated.

Decomposition was confirmed by the appearance of the residue from Determinations 1, 2, 4 and 6 which were dark brown in colour. The appearance of the residue for Determinations 3 and 5 did not indicate any positive signs of decompositions.

Determinations 1 and 2 only lost approximately 48% of their original weight, this indicated that the test item did not completely boil or lose its decomposition products by volatilisation after reaching 400 °C.

Determinations 3 and 4, although exhibiting thermal events that coincided with the other determinations, also had an erratic trace which was attributed to an instrument issue and not thermal events due to the test item.

Conclusions:

Partial boiling from approximately 123 °C (396 K) followed by decomposition from approximately 280 °C (553 K) at 101 to 103 kPa (differential scanning calorimetry, OECD TG 103/EU method A.2)

Executive summary:

The boiling point of Esterification products of triglycerides C18 unsaturated with triethanolamine, dimethyl sulfate quaternized was determined by differential scanning calorimetry, designed to be compatible with Method A.2 Boiling Temperature of Commission Regulation (EC) No 440/2008 of 30 May 2008 and Method 103 of the OECD Guidelines for Testing of Chemicals, 27 July 1995.

The test item has been determined to partial boiling from approximately 123 °C (396 K) followed by decomposition from approximately 280 °C (553 K) at 101 to 103 kPa. As the

test item decomposed, no value for the boiling temperature of the whole test item could be determined.

Description of key information

decomposition (OECD TG 103 / EU method A.2); GLP; RL1

Additional information

The boiling point of Esterification products of triglycerides C18 unsaturated with triethanolamine, dimethyl sulfate quaternized was determined by differential scanning calorimetry, designed to be compatible with Method A.2 Boiling Temperature of Commission Regulation (EC) No 440/2008 of 30 May 2008 and Method 103 of the OECD Guidelines for Testing of Chemicals, 27 July 1995.

As the test item decomposed, no value for boiling point could be determined.