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Diss Factsheets

Physical & Chemical properties

Melting point / freezing point

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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:
from Feb 7, 2022, to March 17, 2022
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
Version / remarks:
version of May 21, 2008
Deviations:
no
Qualifier:
according to guideline
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
Version / remarks:
version of July 27, 1995
Deviations:
no
GLP compliance:
yes
Type of method:
thermal analysis
Specific details on test material used for the study:
SOURCE OF TEST MATERIAL
- Source (i.e. manufacturer or supplier) and lot/batch number of test material: Pfeifer & Langen GmbH & Co. KG; Lot No. L1021174
- Purity, including information on contaminants, isomers, etc.: 99.54 %

STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
- Storage condition of test material: at room temperature, protected from light
- Expiry date: 28 October 2023

TREATMENT OF TEST MATERIAL PRIOR TO TESTING
- Treatment of test material prior to testing (e.g. warming, grinding): none
Key result
Melting / freezing pt.:
ca. 250 °C
Atm. press.:
ca. 1 013.25 hPa
Decomposition:
yes
Decomp. temp.:
ca. 250 °C

The melting point was in the range of 245.7 – 253.4 °C. Based on the results of the differential scanning calorimetry curves and the appearance of test item after the tests, the test item starts to decompose immediately after melting, before it reaches its boiling point.

Conclusions:
In a GLP-compliant study according to OECD Test Guideline 102, the melting point of cellobiose was in the range of 245.7 – 253.4 °C and decomposed immediately after melting, before reaching its boiling point.
Executive summary:

In a GLP-compliant study according to OECD Test Guideline 102, the melting point of cellobiose was in the range of 245.7 – 253.4 °C. Based on the results of the differential scanning calorimetry curves and the appearance of test item after the tests, the test item starts to decompose immediately after melting, before it reaches its boiling point.

Description of key information

In a GLP-compliant study according to OECD Test Guideline 102, the melting point of cellobiose was in the range of 245.7 – 253.4 °C and decomposed immediately after melting, before reaching its boiling point.

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
250 °C

Additional information