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Physical & Chemical properties

Melting point / freezing point

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Link to relevant study record(s)

Description of key information

112-57-2,TEPA,
The freezing point of the substance is below -20°C.

Key value for chemical safety assessment

Additional information

Hantink-de Rooij E.E.,2010,Determination of freezing point of Triethylenetetramine (TEPA),

Research, Development & Innovation AkzoNobel Arnhem, TheNetherlands.

Pour point < -20 °C.

Fair report, according to OECD and EU guidelines, certificate of analysis in the report.

Hantink-de Rooij E.E. 2010,Determination of freezing point of Tetraethylenepentamine (TEPA)with DSC,

Research, Development & Innovation AkzoNobel Arnhem, TheNetherlands.

TEPA: no crystallization / vitrification visible >-70°C at a scan rate 1 °C/min,

except for a small melting point at 10-11°C, possibly due to impurities.

Fair report, according to OECD and EU guidelines, certificate of analysis in the report.

Note:

Reports of solidification of TEPA above -20°C is most likely due to reaction of TEPA with atmospheric CO2, yielding a carbamate.