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EC number: 628-448-8 | CAS number: 34451-26-8
- Life Cycle description
- Uses advised against
- Endpoint summary
- Appearance / physical state / colour
- Melting point / freezing point
- Boiling point
- Density
- Particle size distribution (Granulometry)
- Vapour pressure
- Partition coefficient
- Water solubility
- Solubility in organic solvents / fat solubility
- Surface tension
- Flash point
- Auto flammability
- Flammability
- Explosiveness
- Oxidising properties
- Oxidation reduction potential
- Stability in organic solvents and identity of relevant degradation products
- Storage stability and reactivity towards container material
- Stability: thermal, sunlight, metals
- pH
- Dissociation constant
- Viscosity
- Additional physico-chemical information
- Additional physico-chemical properties of nanomaterials
- Nanomaterial agglomeration / aggregation
- Nanomaterial crystalline phase
- Nanomaterial crystallite and grain size
- Nanomaterial aspect ratio / shape
- Nanomaterial specific surface area
- Nanomaterial Zeta potential
- Nanomaterial surface chemistry
- Nanomaterial dustiness
- Nanomaterial porosity
- Nanomaterial pour density
- Nanomaterial photocatalytic activity
- Nanomaterial radical formation potential
- Nanomaterial catalytic activity
- Endpoint summary
- Stability
- Biodegradation
- Bioaccumulation
- Transport and distribution
- Environmental data
- Additional information on environmental fate and behaviour
- Ecotoxicological Summary
- Aquatic toxicity
- Endpoint summary
- Short-term toxicity to fish
- Long-term toxicity to fish
- Short-term toxicity to aquatic invertebrates
- Long-term toxicity to aquatic invertebrates
- Toxicity to aquatic algae and cyanobacteria
- Toxicity to aquatic plants other than algae
- Toxicity to microorganisms
- Endocrine disrupter testing in aquatic vertebrates – in vivo
- Toxicity to other aquatic organisms
- Sediment toxicity
- Terrestrial toxicity
- Biological effects monitoring
- Biotransformation and kinetics
- Additional ecotoxological information
- Toxicological Summary
- Toxicokinetics, metabolism and distribution
- Acute Toxicity
- Irritation / corrosion
- Sensitisation
- Repeated dose toxicity
- Genetic toxicity
- Carcinogenicity
- Toxicity to reproduction
- Specific investigations
- Exposure related observations in humans
- Toxic effects on livestock and pets
- Additional toxicological data
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Melting point / freezing point
Administrative data
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 27 January 2015 - 23 April 2015
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: GLP-compliant study in accordance with EC A.1.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 015
- Report date:
- 2015
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Version / remarks:
- (2008)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Version / remarks:
- (1995)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7200 (Melting Point / Melting Range)
- Version / remarks:
- (1998)
- Deviations:
- no
- GLP compliance:
- yes
- Type of method:
- thermal analysis
- Remarks:
- (differential scanning calorimetry)
Test material
- Reference substance name:
- 3,3,4,4,5,5,6,6,7,7,8,8,8-tridecafluorooctane-1-thiol
- EC Number:
- 628-448-8
- Cas Number:
- 34451-26-8
- Molecular formula:
- C8H5F13S
- IUPAC Name:
- 3,3,4,4,5,5,6,6,7,7,8,8,8-tridecafluorooctane-1-thiol
- Details on test material:
- - Name (as cited in study report): NS-1000
- Appearance: Clear colourless liquid
Constituent 1
Results and discussion
Melting / freezing point
- Melting / freezing pt.:
- -26 °C
- Atm. press.:
- 1 030 hPa
- Remarks on result:
- other: Melt. pt: 247 K
Any other information on results incl. tables
TGA EXPERIMENT
From the start of the study upwards the weight of the sample decreased significantly. At 120°C, the sample weight had decreased by 25%. After the experiment it was observed that the test substance evaporated from the sample container.
DSC EXPERIMENT 1
- During cooling an exothermic peak was observed between -30°C and -50°C, due to crystallization of the test substance. During heating an exothermic peak followed by an endothermic peak was observed between -50°C and 0°C. The exothermic effect was due to crystallization of the test substance and the endothermic effect was due to melting of the test substance. The extrapolated onset temperature of the melting peak was -25.74°C.
- Endothermic peaks were observed between 50°C and 125°C and between 125°C and 200°C. The reason for the first one is unknown. The extrapolated onset temperature of the second peak was 152.94°C. The effect was most likely obtained due to boiling of the test substance. Because the onset could not be determined accurately enough, it was not used for the calculation of the boiling temperature. After the experiment it was observed that the test substance evaporated from the sample container.
DSC EXPERIMENT 2
To investigate the boiling peak observed in Experiment 1, a closed sample container was applied in Experiment 2. The extrapolated onset temperature of the peak was 192.47°C. The peak had shifted to higher temperature which demonstrated that boiling of the test substance was the reason for the endothermic effect. The extrapolated onset temperature was not used for calculation of the boiling temperature, since the experiment was performed under higher pressure. After the experiment it was observed that the test substance evaporated from the sample container.
DSC EXPERIMENT 3
Experiment 3 was performed to determine the duplicate of the melting temperature and to measure the boiling temperature. The extrapolated onset of the melting peak was -26.11°C and the onset of the boiling peak was 158.26°C. After the experiment it was observed that the test substance evaporated from the sample container.
DSC EXPERIMENT 4
Experiment 4 was performed to determine the duplicate of the boiling temperature. The extrapolated onset of the boiling peak was 156.73°C. After the experiment it was observed that the test substance evaporated from the sample container.
MELTING POINT
The melting point was determined as the average melting temperature obtained from Experiment 1 (-25.74°C) and Experiment 3 (-26.11°C).Applicant's summary and conclusion
- Conclusions:
- In a GLP-compliant study in accordance with EC A.1, OECD 102 and EPA OPPTS 830.7200 using differential scanning calorimetry, the melting temperature of the substance at 1030 hPa has been determined as -26°C.
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.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
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