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Physical & Chemical properties

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/boiling range)
Type of method:
differential scanning calorimetry
Boiling pt.:
> 103 °C
Atm. press.:
981 mBar

The test item HEDP #13082 Nachsubstanz shows a boiling (or/ and a thermal decomposition with evaporation of the decomposition components) from a subcomponent (ca. 11 wt. % - possibly water of crystallisation) earliest at ca. 103°C (at 981 mbar) according to the definition in the OECD guideline 103.

Conclusions:
The test item HEDP #13082 Nachsubstanz shows a boiling (or/ and a thermal decomposition with evaporation of the decomposition components) from a subcomponent (ca. 11 wt. % - possibly water of crystallisation) earliest at ca. 103°C (at 981 mbar) according to the definition in the OECD guideline 103.

Description of key information

Boiling point: HEDP-4Na melts above 500°C.

Key value for chemical safety assessment

Additional information

The boiling point of HEDP-4Na was attempted using a Differential Scanning Calorimetry (DSC) method in accordance with OECD Test Guideline 103. During the study, it was observed that the thermograms show evidence of loss of water at about 103°C and 981 mBar. During the melting point study using same DSC method, HEDP-4Na was observd not to melt below 500°C.