Registration Dossier

Administrative data

Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2016-12-05
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2018
Report Date:
2018

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
Version / remarks:
27. July 1995
Deviations:
no
Qualifier:
according to
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
Version / remarks:
31. May 2008
Deviations:
no
GLP compliance:
yes (incl. certificate)
Type of method:
other: Metal block capillary method

Test material

Reference
Name:
Unnamed
Type:
Constituent
Test material form:
solid: particulate/powder

Results and discussion

Melting / freezing point
Key result
Decomposition:
yes
Decomp. temp.:
ca. 210 °C
Remarks on result:
not determinable

Any other information on results incl. tables

The test item started to change its colour from blue to brown at about 210 °C. At about 220 °C colour change was completed. There was no melting point observed in the temperature range of 30 – 400°C. The test item decomposed.

Results with reference substance: melting point of 236.7 °C was found for caffeine, which is conform the CoA.

Applicant's summary and conclusion

Conclusions:
There was no melting point observed in the temperature range of 30 – 400°C. The test item decomposed at 210°C.
Executive summary:

The test was carried out according to OECD guideline 102 and EC method A.1. Capillary tubes filled with the test item were heated in a metal block. The test item decomposed at about 210 °C and no melting point was observed in the range of 30 – 400 °C.