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EC number: 219-147-9 | CAS number: 2373-38-8
- 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

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:
- key study
- Study period:
- 2011
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Remarks:
- Guideline compliant well documented study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Deviations:
- no
- GLP compliance:
- no
- Type of method:
- thermal analysis
- Key result
- Melting / freezing pt.:
- >= 175 °C
- Decomposition:
- yes
- Decomp. temp.:
- >= 175 °C
- Remarks on result:
- other: Up to 175 °C the sample shows a weight loss of ca. 3 weight%. From 175 °C the test item shows most probably a thermal decomposition with melting (melting >175 °C can not be excluded; the decomposition products seem to start melting at temperatures >175°C)
- Conclusions:
- decomposition at >= 175°C
melting point > 175 °C - Executive summary:
In the Klimisch 1 non-GLP study from Bütfering (2012) the melting point of Sodium di(1.3-dimethylbutyl) sulfosuccinate was determined with the DSC method according to OECD 102 and EU method A.1. The test item shows no melting of a crystalline main component up to 175 °C according to the definition in the OECD Guideline 102. From 175 °C the test item shows most probably a thermal decomposition with melting (a melting >175 °C cannot be excluded, due to the information of the capillary method; the decomposition products seem to start melting at temperatures >175 °C) and evaporation of the decomposition components. A vaporization of significant parts of the test item cannot be completely excluded.
This information is considered to be relevant and reliable for the further risk assessment.
Reference
The test item Sodium di(1.3-dimethylbutyl) sulfosuccinate shows no melting of a crystalline main component up to 175 °C according to the definition in the OECD Guideline 102 (mean value from repeat determinations; 1stto 3rdheating run).
· 175 °C (from first measurement)
· 175 °C (from second measurement)
· 175 °C (from third measurement)
Up to 175 °C the sample shows a weight loss of ca. 3 weight%. From 175 °C the test item shows most probably a thermal decomposition with melting (a melting >175 °C cannot be excluded, due to the information of the capillary method; the decomposition products seem to start melting at temperatures >175 °C) and evaporation of the decomposition components. A vaporization of significant parts of the test item cannot be completely excluded.
In the temperature range between about 100 °C and 120 °C the test item shows a small endothermic effect. This effect is possibly a melting of part components. Additional the sample shows another small reversible endothermic effect. This effect is possibly solid–solid phase transformations. These effects are not the melting of the test item (main component) which was verified by subsequent tests with the Kofler-heating bank and with the melting in a capillary.
The cooling runs show no crystallization of the main component.
Description of key information
melting/decomposition temperature: 175°C
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- 175 °C
Additional information
In the Klimisch 1 non-GLP study from Bütfering (2012) the melting point of Sodium di(1.3-dimethylbutyl) sulfosuccinate was determined with the DSC method according to OECD 102 and EU method A.1.The test item Sodium di(1.3-dimethylbutyl) sulfosuccinate shows no melting of a crystalline main component up to 175 °C according to the definition in the OECD Guideline 102.From 175 °C the test item shows most probably a thermal decomposition with melting (a melting >175 °C cannot be excluded, due to the information of the capillary method; the decomposition products seem to start melting at temperatures >175 °C) and evaporation of the decomposition components. A vaporization of significant parts of the test item cannot be completely excluded.
For the risk assessment, a melting temperature of 175 °C will be used.
This information is considered to be relevant and reliable for the further risk assessment.
Note: Due to the slightly different test design of the melting and boiling point study (open vs. closed crucible), a different melting/boiling/decomposition temperature was obtained in the OECD 102 and the OECD 103 study.
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