Registration Dossier

Administrative data

Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
28-4-2016 to 24-6-2016
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Remarks:
in accordance with GLP

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2016
Report Date:
2016

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
Deviations:
no
Qualifier:
according to
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
Deviations:
no
Qualifier:
according to
Guideline:
EPA OPPTS 830.7200 (Melting Point / Melting Range)
Deviations:
no
GLP compliance:
yes (incl. certificate)
Type of method:
differential scanning calorimetry

Test material

Reference
Name:
Unnamed
Type:
Constituent
Test material form:
liquid: viscous
Details on test material:
- Name of test material (as cited in study report): Guaiacwood oil
- Physical state: viscous liquid
- Storage condition of test material: at room temperature protected from light

Results and discussion

Melting / freezing point
Key result
Melting / freezing pt.:
-32 - -29 °C
Atm. press.:
ca. 1 020 hPa

Any other information on results incl. tables

The melting temperature range was determined as the lowest and highest temperature obtained from Experiment 1 (-28.97°C), first heating of Experiment 2 (-30.62°C), Experiment 3 (-31.72°C) and Experiment 4 (-31.26°C). During the various measurements the observed glass transition (melting temperature) varied. This was most likely because the test substance is a mixture (UVCB).

Applicant's summary and conclusion

Conclusions:
The melting range (glass transition) of Guaiacwood oil was determined to be -32 – -29°C (241 – 244K) by using DSC-curve.
Executive summary:

The melting range (glass transition) of Guaiacwood oil was investigated according to OECD guideline 102 under GLP, and was found to be -32 – -29°C (241 – 244K).