Reaction mass of 2-{[3-(trimethoxysilyl)propyl]amino}ethanaminium chloride and 2-{benzyl[3-(trimethoxysilyl)propyl]amino}ethanaminium chloride and N-[2-(benzylamino)ethyl]-3-(trimethoxysilyl)propan-1-aminium chloride and N-[2-(dibenzylamino)ethyl]-3-(trimethoxysilyl)propan-1-aminium chloride and N-benzyl-2-{benzyl[3-(trimethoxysilyl)propyl]amino}ethanaminium chloride and N-benzyl-N-[2-(dibenzylamino)ethyl]-3-(trimethoxysilyl)propan-1-aminium chloride.

Boiling point

Link to relevant study record(s)

Reference

Endpoint:

boiling point

Type of information:

experimental study

Adequacy of study:

key study

Study period:

09 Jul 1992 - 10 Jul 1992

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

EU Method A.2 (Boiling Temperature)

Qualifier:

according to guideline

Guideline:

OECD Guideline 103 (Boiling point/boiling range)

GLP compliance:

yes

Type of method:

differential scanning calorimetry

Key result

Decomposition:

yes

Decomp. temp.:

> 30 - < 300 °C

Remarks on result:

other: The substance is not stable in an air atmosphere over a temperature range of 30 to 300°C (303 to 573K). No boiling point or boiling range can be given.

Details:

Several DSC experiments were performed which resulted in the following observations:

- Between room temperature and about 100°C (373K), a small endothermic effect can be observed, which slowly rises with increasing temperature. This is probably caused by evaporation of part of the substance, possibly residue methanol.

- Between about 100 and 300°C (373 – 573K) the endothermic heat effect becomes smaller and probably changes to an exothermic heat effect. The temperature at which the heat effect changes from endothermic to exothermic could not be determined from the experiments, since no accurate base-line could be constructed. This may be due to an exhaustion of volatile material (endothermic effect becomes smaller) and the start of an exothermic reaction of the test substance, probably with water and/or oxygen from the air.

- In some cases between about 85 – 110°C (358 – 383K) an endothermic peak is observed, which probably is caused by evaporation of part of the substance. In cases where this peak was not observed one or more very sharp endothermic peaks are observed as higher temperatures (up to approximately 160°C, 433K).

- A large exothermic effect at temperatures above about 246°C (519K) was only observed in the first experiment, where an amount of test substance escaped from the sample container into the calorimeter. After this experiment, where the maximum temperature was about 330°C (603K), the sample was a black solid material.

- After experiments with a maximum temperature of 200°C (473K) the test substance was a transparent yellow plastic solid. Between room temperature and 200°C (473K) the sample loses about 20% of its mass.

- After experiments with a maximum temperature of 300°C (573K) the colour of the sample was a dark brown and the sample had lost about 30% of its initial mass.

Conclusion:

The test material is not stable in an air atmosphere over the entire temperature range of 30 – 300°C (303 – 573 K). No indication for a boiling point or boiling point range can be given.

Conclusions:

No boiling temperature could be determined in a reliable study conducted according to an appropriate test protocol, and in compliance with GLP.

Description of key information

Loss of volatile components and decomposition between 30 to 300°C (303 to 573K).

Additional information

No boiling temperature could be determined by Differential Scanning Calorimetry according to OECD Guideline 103.

The substance is not stable in an air atmosphere over a temperature range of 30 to 300°C (303 to 573K). No boiling point or boiling range can be given.