Trimethyl-3-[(1-oxo-10-undecenyl)amino]propylammonium methyl sulphate

Boiling point

Link to relevant study record(s)

Reference

Endpoint:

boiling point

Type of information:

experimental study

Adequacy of study:

key study

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

other: Guideline study

Qualifier:

according to guideline

Guideline:

OECD Guideline 103 (Boiling point/boiling range)

Deviations:

not specified

GLP compliance:

no

Type of method:

differential scanning calorimetry

Boiling pt.:

> 220 °C

Atm. press.:

1 020 hPa

Decomposition:

yes

Decomp. temp.:

>= 220 °C

In the DSC experiment no peaks could be seen up to 220 °C that could be allocated to a boiling point.

In the TGA test a sample of the test item was heated from 30 °C to 675 °C in an inert gas atmosphere (N2). Between 30 °C and 90 °C it lost 2.4 % of its weight, which can be attributed to the evaporation of residual water and solvent.

In the TGA experiment an increasing weight loss was recorded above 90 °C, at 250.8 °C (onset temperature) the weight continuously decreased and reached a loss of approx. 92 % at 580 °C.

In the visual inspection it was observed that starting from 220 °C the sample becomes brownish, at 260 °C the specimen was completely black. This observation indicates a degradation process and corresponds with the observations made in the TGA experiment.

Conclusions:

No boiling point could be determined by means of the capillary method, DSC and TGA. Instead TGA and visual inspection indicate decomposition of the substance at a temperature of >= 220 °C.

Executive summary:

The boiling point of the substance was determined according to OECD Guideline 103 by means of DSC, TGA and capillary method. In all cases no boiling point could be observed at temperatures up to 250 °C.

In the TGA experiment an increasing weight loss was recorded above 90 °C, at 250.8 °C (onse>t temperature) the weight continuously decreased and reached a loss of approx. 92 % at 580 °C.

In the visual inspection it was observed that starting from 220 °C the sample becomes brownish, at 260 °C the specimen was completely black. This observation indicates a degradation process and corresponds with the observations made in the TGA experiment.

It can be concluded that no boiling point can be determined. The substance decomposes at a temperature of >= 220 °C.

Description of key information

No boiling point could be determined by means of the capillary method, DSC and TGA. Instead TGA and visual inspection indicate decomposition of the substance at a temperature of >= 220 °C.