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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
Surface tension
Administrative data
Link to relevant study record(s)
- Endpoint:
- surface tension
- Type of information:
- experimental study
- Adequacy of study:
- other information
- Study period:
- May 2012 to July 2012
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- test procedure in accordance with national standard methods with acceptable restrictions
- Reason / purpose for cross-reference:
- reference to same study
- Qualifier:
- according to guideline
- Guideline:
- other: ASTM D971 "Standard Test Method for Interfacial Tension of Oil Against Water by the Ring Method"
- Deviations:
- no
- GLP compliance:
- no
- Type of method:
- ring method
- Surface tension:
- > 15 - < 16 mN/m
- Temp.:
- 25 °C
- Remarks on result:
- other: interface tension between GALDEN LMW ad water
- Conclusions:
- The interfacial tension between GALDEN LMW and water is in the range between 15 and 16 dyne/cm at 25°C.
- Executive summary:
The purpose of the study was to determine the interfacial tension between GALDEN LMW and water, under non-equilibrium conditions.
Measurements were made in compliance with ASTM D971 method “Standard Test Method for Interfacial Tension of Oil Against Water by the Ring Method”.
According to the method, the interfacial tension was determined at the interface between oil and water, by measuring with a tensiometer the force necessary to detach a planar ring of platinum wire from the surface of the liquid of higher surface tension. The force so measured is corrected by an empirically determined factor which depends upon the force applied, the densities of both oil and water and the dimensions of the ring.
Refer to ASTM D971 method for details.
Measurements were performed on six different batches of Galden Low Molecular Weight at 25°C.
The interfacial tension was in the range between 15 and 16 dyne/cm at 25°C.
- Endpoint:
- surface tension
- Type of information:
- experimental study
- Adequacy of study:
- other information
- Study period:
- 1994
- 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.
- Reason / purpose for cross-reference:
- reference to same study
- Principles of method if other than guideline:
- not reported
- GLP compliance:
- no
- Type of method:
- other: not reported
- Surface tension:
- 14 mN/m
- Temp.:
- 25 °C
- Conc.:
- 100 vol%
- Remarks on result:
- other: Measurement conducted on the unchanged substance
- Conclusions:
- The surface tension of GALDEN LMW is 14 mN/m.
- 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 main 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 family are reported. GALDEN LMW, which itself represents the low molecular weight fraction of the GALDEN family is also described with the commercial name of GALDEN HT 70.
The surface tension of GALDEN LMW, experimentally determined on the substance itself, is reported to be 14 mN/m.
- Endpoint:
- surface tension
- Data waiving:
- study scientifically not necessary / other information available
- Justification for data waiving:
- the study does not need to be conducted because based on structure, surface activity is not expected or cannot be predicted
- the study does not need to be conducted because surface activity is not a desired property of the material
- the study does not need to be conducted because water solubility is below 1 mg/L at 20°C
Referenceopen allclose all
Measurements were performed on six different batches of Galden Low Molecular Weight at 25°C.
The obtained results are summarized in the following table:
Product name | Batch number | Interfacial tension at 25°C (dyne/cm) |
GALDEN HT 55 | 1314SP | 16 |
GALDEN HT 55 | 1631SP | 15 |
GALDEN HT 55 | 1806SP | 15 |
GALDEN HT 70 | 1021RR | 16 |
GALDEN HT 70 | 3816OE | 16 |
GALDEN HT 70 | 1531SP | 16 |
Description of key information
GALDEN LMW is not expected to have surface activity properties.
The surface tension of GALDEN LMW itself is 14 mN/m.
The interfacial tension between GALDEN LMW and water is in the range between 15 and 16 mN/m.
Key value for chemical safety assessment
Additional information
In accordance with Column 2 of REACH Annex VII, information requirement section 7.6, the study does not need to be conducted if surface activity is not expected or surface activity is not a desired property of the material.
According to REACH guideline Chapter R.7a and to the advised international test guidelines the surface tension is measured on aqueous solutions of the test item in order to determine the potential surface activity properties.
GALDEN LMW is not expected to have surface activity, therefore conducting an experimental study according to the advised test guidelines in order to determine the surface activity properties is unjustified.
However a value of surface tension for the substance itself and a measurement of the interfacial tension between GALDEN LMW and water are reported.
The value of surface tension for GALDEN LMW derives from a reliable scientific publication. In the publication, some chemical and physical properties of GALDEN LMW are described. The surface tension of GALDEN LMW, experimentally determined, is reported to be 14 mN/m.
The interfacial tension between GALDEN LMW and water under non-equilibrium conditions, was experimentally determined according to ASTM method No. D971 “Standard Test Method for Interfacial Tension of Oil Against Water by the Ring Method” on six defferent batches of GALDEN LMW. The interfacial tension is determined to be in the range between 15 and 16 mN/m at 25°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.
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