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Diss Factsheets
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EC number: 500-537-5 | CAS number: 161075-00-9
- 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
Melting point / freezing point
Administrative data
Link to relevant study record(s)
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: No details on test method are given, however the data source is authoritative and reliable and the results are considered acceptable for assessment.
- Reason / purpose for cross-reference:
- reference to same study
- Principles of method if other than guideline:
- not reported
- GLP compliance:
- not specified
- Type of method:
- pour point
- Key result
- Remarks on result:
- other: Pour point < -110°C
- Conclusions:
- The Pour Point of GALDEN LMW is lower than -110 °C.
- Executive summary:
The scope of the publication was to analyse perfluoropolyethers (PFPEs) from the point of view of their synthetic chemistry, properties, derivates, and applications. The focus of the publication is on PFPE fluids commercially named FOMBLIN and GALDEN and the information gleaned from first-hand experience are reported. FOMBLIN and GALDEN belong to the same class of PFPEs, the principal difference between the two families is the molecular weight since GALDEN represents the low molecular weight fraction of FOMBLIN. Both of FOMBLIN and GALDEN are fluids at standard conditions.
In the publication the chemical and physical properties of several commercial products of the GALDEN fraction are reported. GALDEN LMW, which itself represents the low molecular weight fraction of the GALDEN fraction is also described with the commercial name of GALDEN HT 70.
The Pour Point of GALDEN LMW, experimentally determined, is reported to be < -110 °C.
- Endpoint:
- melting point/freezing point
- Data waiving:
- study scientifically not necessary / other information available
- Justification for data waiving:
- other:
- Justification for type of information:
- JUSTIFICATION FOR DATA WAIVING
The Pour Point of GALDEN HT70 is reported < -110 °C ( Sianesi et Al, 1994).
This information is consistent with public experimental data which report the pour point of GALDEN HT55 < -115°C and the pour point of GALDEN HT70 = -115°C.
The pour point of a liquid is the temperature below which the liquid loses its flow characteristics.
The melting point of GALDEN LMW is therefore expected to be below -110 °C and testing is unjustified. - Endpoint:
- melting point/freezing point
- Type of information:
- other: public data
- Adequacy of study:
- supporting study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: No details on test method are given, however the data source is authoritative and reliable and the results are considered acceptable for assessment.
- GLP compliance:
- no
- Type of method:
- pour point
- Specific details on test material used for the study:
- GALDEN HT55, GALDEN HT70
- Melting / freezing pt.:
- < -125 °C
- Remarks on result:
- other: Pour Point
- Remarks:
- GALDEN HT55
- Melting / freezing pt.:
- < -110 °C
- Remarks on result:
- other: Pour Point
- Remarks:
- GALDEN HT70
- Conclusions:
- The pour point of GALDEN LMW is reported to be <= -115°C.
- Executive summary:
Pour point data are reported on the Company technical brochure and based on experimental measurements.
The pour point of GALDEN LMW is reported to be:
GALDEN HT55 : pour point < -125°C
GALDEN HT70 : pour point <-110°C
The Pour Point variability is consistent with the difference in concentration of the individual constituents.
Referenceopen allclose all
Description of key information
In accordance with Column 2 adaptation of REACH Annex VII, Information requirement section 7.2, a melting/freezing point study does not need to be conducted below a lower limit of -20 °C.
The experimentally determined Pour Point of GALDEN LMW is lower than -110 °C, consequently the Melting Point of GALDEN is well below than -20 °C. Conduting a melting/freezing point study is therefore unjustified and the study has been waived.
Key value for chemical safety assessment
Additional information
A reliable publication is reported, which discusses perfluoropolyethers (PFPEs) from the point of view of their synthetic chemistry, properties, derivates, and applications. Moreover, public information based on Company data is available.
The Pour Point of GALDEN LMW, experimentally determined, is < -110 °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.