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Melting point / freezing point

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Link to relevant study record(s)

Reference
Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2003
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Study followed the OECD test guideline and is scientifically valid. It was, however, not carried out under GLP
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
GLP compliance:
no
Type of method:
thermal analysis
Melting / freezing pt.:
> 37 - < 47 °C

Average from 2 DSC-scans:

- Onset temperature: 36.6°C

- Peak temperature: 43.6°

- Endset temperature: 47.2°C

Conclusions:
84989-41-3, AKD,
According to this report: The melting range of AKD is 37°C till 47°C.

Description of key information

The melting range of AKD is 37°C till 47°C.

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
37 °C

Additional information

The available study on CAS 84989-41-3 (Melting range, Thiele/Vissers, 2003, Technical Service Work Report, Aquapel 364 analysis,rs) is based on on DSC measurement in duplo equivalent to OECD Guideline 102 (Melting point / Melting Range).


 


Composition:


Alkyl Ketene Dimer (AKD): 90.1% (measured by FT-IR)


High Molecular Weight fraction: 5.5% (measured by HPLC with RI-detector)


Hydrolyzed AKD (HAKD): 0.9%


Fatty Acid Anhydride (FAA): 2.2%


 


The melting range might be different for other compositions.