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EC number: 911-616-2 | CAS number: -
- 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
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- 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
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- Sediment toxicity
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- Biotransformation and kinetics
- Additional ecotoxological information
- Toxicological Summary
- Toxicokinetics, metabolism and distribution
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- Repeated dose toxicity
- Genetic toxicity
- Carcinogenicity
- Toxicity to reproduction
- Specific investigations
- Exposure related observations in humans
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- 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
- Study period:
- Not indicated
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- guideline study with acceptable restrictions
- Remarks:
- Acceptable publication which meets basic scientific principles. The study is performed according to OECD guidelines. Please see overall remarks.
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Deviations:
- not specified
- Principles of method if other than guideline:
- The method of measurement (e.g. capillary, microscope, ...) was not identified. It was not clear whether duplicate measurements were performed.
- GLP compliance:
- no
- Type of method:
- other: Not indicated
- Melting / freezing pt.:
- 167.8 - 175.6 °C
- Remarks on result:
- other: No other data available.
- Conclusions:
- The test substance has a melting point between 167.8 and 175.6 ºC.
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- June 12 - September 21, 2000
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- guideline study without detailed documentation
- Remarks:
- Although the method was not described in detail, the guideline was clearly stated: the test was carried out according to OECD guidelines. Kurume Laboratory is furthermore a well-known and trustworthy, respected laboratory. The signature and name of the author was not present, but this is because the report was an English translation of a Japanese study.
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Deviations:
- not specified
- Principles of method if other than guideline:
- The study was performed according to an established method recommended by OECD 102. It was not stated whether the endpoint was based on a single measurement or duplicate measurements.
- GLP compliance:
- no
- Type of method:
- other: melt microscope
- Melting / freezing pt.:
- 178.2 - 181.9 °C
- Remarks on result:
- other: No other information was available.
- Conclusions:
- The test substance has a melting point between 178.2 and 181.9 ºC
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 25 September 2006
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- guideline study with acceptable restrictions
- Remarks:
- Although the test was not performed under GLP, the test has been conducted according to OECD guidelines and is well documented. The name of the staff performing the test was identified in the report (Ken Yamada).
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Deviations:
- yes
- Remarks:
- Endpoint based on a single measurement rather than duplicate measurements.
- Principles of method if other than guideline:
- The study was performed according to an established method recommended by OECD 102. It seems that the endpoint was based on a single measurement rather than duplicate measurements.
- GLP compliance:
- no
- Type of method:
- capillary method
- Melting / freezing pt.:
- > 160.8 - < 166.6 °C
- Atm. press.:
- 101.325 kPa
- Remarks on result:
- other: No other data was available.
- Conclusions:
- The melting point of the tested substance is between 160.8 and 166.6 ºC.
Referenceopen allclose all
1. Capillary tube in a liquid batch containing silicon oil.
2. the melting range was established as the temperature at which the test substance became wet until the temperature at which it became a transparent gel (i.e. had melted completely).
Description of key information
Data for main components:
Melting point of C16MES is between 178.2 and 181.9 ºC
Melting point of C18MES is between 160.8 and 166.6 ºC
Data for similar substance with lower alkyl chain length:
Melting point of C14MES is between 167.8 and 175.6 ºC
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- 180 °C
Additional information
The key value for CSA for C16MES is 180 ºC
The key value for CSA for C18MES is 163 ºC
The substance is a reaction mass of sodium 1-methoxy-1-oxohexadecane-2-sulphonate and sodium methyl 2-sulphooctadecanoate consisting of a typical concentration of 73% sodium 1-methoxy-1-oxohexadecane-2-sulphonate (C16MES) and 9.9% sodium methyl 2-sulphooctadecanoate (C18MES). As is stated in R.7.1.2.3, melting points are not normally carried out for mixtures. So, no new study on the reaction mass was conducted. Both data sets of the components received Klimisch values 2 and result in a similar range of temperatures. Furthermore, also the result of a supporting substance C14MES gives temperatures of the same magnitude.
It is concluded that the endpoint of the melting point is sufficiently covered by the available data of the separate components but no definite estimate value can be derived for the reaction mass.
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