Registration Dossier
Registration Dossier
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EC number: - | CAS number: -
Melting point / freezing point
Administrative data
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- Oct-Nov 2020
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 021
- Report date:
- 2021
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Version / remarks:
- July 1995
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Version / remarks:
- May 2008
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- differential scanning calorimetry
Test material
- Reference substance name:
- Low molecular weight organic substances from fast pyrolysis bio-oil
- IUPAC Name:
- Low molecular weight organic substances from fast pyrolysis bio-oil
- Reference substance name:
- Monomers from fast pyrolysis bio-oil
- IUPAC Name:
- Monomers from fast pyrolysis bio-oil
- Reference substance name:
- Dimers from fast pyrolysis bio-oil
- IUPAC Name:
- Dimers from fast pyrolysis bio-oil
- Reference substance name:
- Trimers from fast pyrolysis bio-oil
- IUPAC Name:
- Trimers from fast pyrolysis bio-oil
- Reference substance name:
- Higher oligomers from fast pyrolysis bio-oil
- IUPAC Name:
- Higher oligomers from fast pyrolysis bio-oil
- Reference substance name:
- Water
- EC Number:
- 231-791-2
- EC Name:
- Water
- Cas Number:
- 7732-18-5
- Molecular formula:
- H2O
- IUPAC Name:
- water
- Test material form:
- liquid: viscous
- Remarks:
- Brown /black highly vicous liquid
Constituent 1
Constituent 2
Constituent 3
Constituent 4
Constituent 5
Constituent 6
Results and discussion
Melting / freezing point
- Key result
- Melting / freezing pt.:
- < -65 °C
Any other information on results incl. tables
pre-test result:
At 3.8°C: liquid;
At -19,8°C: appeared to be frozen when touching the surface with the wire,
At -80°C: solid
main test result:
in all three DSC measurements no exothermic event could be detected. No freezing/melting point can be detected under these circumstances until the detection limit of -65°C.
Applicant's summary and conclusion
- Conclusions:
- No freezing/melting point could be determined by measurement with DSC until the detection limit of -65°C.
- Executive summary:
The test was carried out according to OECD guideline 102 and EC method A.1. The determination of freezing/melting point of BTG Pyrolytic Lignin was determined via DSC (differential scanning calorimetry).
Referring to the pre-test the freezing/melting point should be between 5 °C and -20 °C (nominal temperatures) as the test item appeared to be solid at an evaluation temperature of -19.8 °C and was solid at -80 °C.
In all three DSC measurements no exothermic event during the cooling down phase until – 65°C and no endothermic event in the heating up phase could be detected.
Based on the properties of this UVCB substance the results of the pre-test indicate that the test item will increase in viscosity and will therefore have an appearance to be frozen. The DSC measurements confirms that there is no phase change untill the detection limit of -65°C
Therefore, no freezing/melting point can be determined under these circumstances.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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