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Boiling point

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Reference
Endpoint:
boiling point
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
OECD Guideline 103 (Boiling Point)
Deviations:
no
Qualifier:
according to
Guideline:
EU Method A.2 (Boiling Temperature)
Version / remarks:
2008
Deviations:
no
GLP compliance:
no
Type of method:
differential scanning calorimetry
Atm. press.:
1 020 hPa
Decomposition:
yes
Decomp. temp.:
>= 190 °C
Remarks on result:
not determinable

The recorded main weight loss above 252.1 °C (estimated onset on TGA) may indicate a beginning evaporation (boiling). However, based on the visual inspection and the results of the DSC preliminary test (up to 250°C) a product decomposition is more likely.

In order to provide evidence for this assumption, a degradation test was performed during which an aliquot of the sample was heated to 190 °C for 15 minutes. The remaining residue (98 % of the original material) war characterised by NMR spectroscopy. The NMR analysis confirms the decomposition of the product. A significant loss of carbonyl functions was detected.

Consequently, the test item does not provide a boiling point until disintegration at about 190 °C.

Conclusions:
Reaction product of lauryl-PDA/lauryl-DETA with chloroacetic acid does not have a boiling point until disintegration at about 190 °C.
Executive summary:

The boiling temperature of Reaction product of lauryl-PDA/lauryl-DETA with chloroacetic acid was determined by thermogravimetry and differential scanning calorimetry according to the OECD Test Guideline 103 [adopted on 27 July 1995] and EU test method A.2.

No boiling point could be detected; decomposition started above 190 °C (1020 hPa).

Description of key information

decomposition before boiling

Key value for chemical safety assessment

Additional information

The boiling temperature of Reaction product of lauryl-PDA/lauryl-DETA with chloroacetic acid was determined by thermogravimetry and differential scanning calorimetry according to the OECD Test Guideline 103 [adopted on 27 July 1995] and EU test method A.2.

No boiling point could be detected; decomposition started above 190 °C (1020 hPa).