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EC number: 931-037-9 | 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
- 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
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- Testing was conducted between 08 February 2008 and 11 March 2008.
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: Study conducted in compliance with agreed protocols, with no or minor deviation from standard test guidelines and/or minor methodological deficiencies, which do not affect the quality of relevant results.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 008
- Report date:
- 2008
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- Date of inspection: 21/08/2007 Date of signature: 15/10/2007
- Type of method:
- other: differential scanning calorimetry
Test material
- Reference substance name:
- dibarium(2+) bis(1,5-dioxo-1,5-bis(tridecyloxy)pentane-3-sulfonate) hydrogen phosphate
- EC Number:
- 931-037-9
- Molecular formula:
- Molecular formula for each combination of chain length. C13,13: (C30H57O7S)2 Ba @ BaHOP4 C11,12: (C27H51O7S)2 Ba @ BaHOP4 C12,12: (C28H53O7S)2 Ba @ BaHOP4 C12,13: (C29H55O7S)2 Ba @ BaHOP4 C13,14: (C31H59O7S)2 Ba @ BaHOP4 C14,14: (C32H61O7S)2 Ba @ BaHOP4
- IUPAC Name:
- dibarium(2+) bis(1,5-dioxo-1,5-bis(tridecyloxy)pentane-3-sulfonate) hydrogen phosphate
- Details on test material:
- Sponsor's identification: Barium di(bistridecylsulfosuccinate) in mixture with Barium hydrogen phosphate
Description : pale yellow solid
Batch number : Y-T-1
Storage conditions: room temperature, in the dark
Constituent 1
Results and discussion
Melting / freezing point
- Decomposition:
- yes
- Decomp. temp.:
- >= 502 K
- Remarks on result:
- other: The test material decomposed, with melting, from 502 K.
Any other information on results incl. tables
Thermographic Data – Determination 1
Thermal Event |
Interpretation |
Temperature |
|
ºC |
K |
||
Endotherm |
Decomposition, with melting |
272.47 |
546 |
Thermographic Data – Determination 2
Thermal Event |
Interpretation |
Temperature |
|
ºC |
K |
||
Endotherm |
Decomposition, with melting |
273.19 |
546 |
Overall result: the test material decomposed, with melting from 546 K
Thermographic Data – Determination 1
Thermal Event |
Interpretation |
Temperature |
|
ºC |
K |
||
Endotherm |
Decomposition, with melting |
228.56 |
502 |
Thermographic Data – Determination 2
Thermal Event |
Interpretation |
Temperature |
|
ºC |
K |
||
Endotherm |
Decomposition, with melting |
229.16 |
502 |
Overall result: the test material decomposed, with melting from 502 K.
Discussion:
Assignment of the DSC thermograms was completed using observations recorded during an assessment performed using an amended liquid bath apparatus. The test material was observed to discolour to a light brown/orange solid over the temperature range of approximately 220°C to 230°C. On continuation of the test, the sample melted over a temperature range of 234°C to 237°C to give a dark brown, bubbling liquid, with a large quantity of froth above it.
Similar thermographic profiles were obtained using air and nitrogen atmospheres; this indicated that the observed decomposition in all DSC determinations was probably thermal and not oxidative. As expected with thermal decomposition, the onset temperatures were dependent on the heating rate/temperature program used. That is, on comparison of the preliminary screening test and the definitive test results, the slower heating rate of the definitive test resulted in a lower decomposition temperature. This was attributed to the test material having been exposed to an elevated temperature for an extended period of time, i.e. the decomposition temperature is a combined function of both temperature and exposure period. Of the data available, the definitive test results can be justified as the overall conclusion from the testing completed, as it used the heating rate of 1°C/minute (1 K/minute) as specified by the method guideline. However it is important to also note that the decomposition temperature was sensitive to heating rate.
Applicant's summary and conclusion
- Conclusions:
- The test material decomposed, with melting, from 502 K. However, the decomposition temperature was determined to be sensitive to heating rate and subsequently increased with an increase in heating rate, as the test material was exposed to elevated temperatures for a shorter time period. The definitive result was determined using a heating rate of 1 K/min, as required by the method guideline.
- Executive summary:
Melting/Freezing Temperature. The test material decomposed, with melting, from 502 K, by differential scanning calorimetry, using ASTM E537-86, Method A1 of Commission Directive 92/69/EEC. However, the decomposition temperature was determined to be sensitive to heating rate and subsequently increased with an increase in heating rate, as the test material was exposed to elevated temperatures for a shorter period of time. The definitive result was determined using a heating rate of 1 K/min, as specified by the method guideline.
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