Registration Dossier

Physical & Chemical properties

Melting point / freezing point

Currently viewing:

Administrative data

Link to relevant study record(s)

Reference
Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
July 17 to August 2017
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Remarks:
Study preformed according to standard guidelines with no deviaitons and in-house QA procedures. Report is detailed.
Qualifier:
according to guideline
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
Deviations:
no
GLP compliance:
no
Remarks:
In-house Quality Assurance system.
Other quality assurance:
other: In-house Quality Assurance system.
Type of method:
differential scanning calorimetry
Specific details on test material used for the study:
Name: Calcium zinc salts of oligomers of rosin
IUPAC Name: Calcium zinc salts of oligomers of rosin
EINECS No.: 920-105-3
EC pre-registered name: Rosin dimers, calcium, zinc salt
Batch No.: 179449
Purity: 100%
Appearance at Room
Temperature: Solid
Colour: Yellow to brownish
Certificate of Analysis: See Appendix 1
Storage Conditions: +2°C to +8°C, under nitrogen and protected from light.
Expiry Date: December 2017
Key result
Melting / freezing pt.:
< 165 °C
Atm. press.:
1 018 hPa
Decomposition:
no
Sublimation:
no
Remarks on result:
not determinable
Remarks:
If a glass transition really exists, it would be lower than the Ring & Ball value, which is 165°C.

Glass Transistion (Tg) is actually a temperature range, rather than a specific temperature. The convention, however, is to report a single temperature defined as the midpoint of the temperature range, bounded by the tangents to the two flat regions of the heat flow curve.

If a glass transition really exists, it would be lower than the Ring & Ball value, which is 165°C (Ring & Ball value is defined by ASTM).

Conclusions:
If a glass transition really exists, it would be lower than the Ring & Ball value, which is 165°C (Ring & Ball value is defined by ASTM).
Executive summary:

The glass transition temperature of clacium zinc salts of oligomers of rosin was determined by differential scanning calorimetry and according to OECD guideline 102.If a glass transition really exists, it would be lower than the Ring & Ball value, which is 165°C (Ring & Ball value is defined by ASTM).

Description of key information

The glass transition temperature of clacium zinc salts of oligomers of rosin was determined by differential scanning calorimetry and according to OECD guideline 102.If a glass transition really exists, it would be lower than the Ring & Ball value, which is 165°C (Ring & Ball value is defined by ASTM).

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
165 °C

Additional information