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Diss Factsheets
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EC number: 270-601-2 | CAS number: 68457-13-6
- 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:
- 2009-10-21 to 2009-11-12
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Deviations:
- no
- GLP compliance:
- no
- Type of method:
- thermal analysis
- Remarks:
- differential scanning calometry (DSC)
- Atm. press.:
- ca. 1 002 hPa
- Decomposition:
- yes
- Decomp. temp.:
- ca. 125 °C
- Remarks on result:
- other: based on DSC-measurement, performed under nitrogen
- Conclusions:
- Under the described test conditions the test item, cobalt, borate neodecanoate complexes, decomposes before melting at approximately 125°C.
Reference
Thermal stability:
The DSC-measurement in a closed glass crucible with the test item showed no endothermic or exothermic effect, respectively.
DSC:
The DSC-measurement in aluminium crucible (measured at 999 hPa) with a hole with the test item showed two exothermic effects in the temperature range 290 °C to 420 °C and 420 °C to 460 °C, respectively. The second DSC-measurement in aluminium crucible (measured at 1002 hPa) with a hole with the test item showed an indistinct course of the base line.
The two DSC-measurements in open glass crucibles (measured at 1002 hPa and unknown (the exact pressure can not be reported anymore due to the loss of the measurement form; the results from the measurement are not influenced by this loss)) showed multiple endothermic effects in the temperature range 40 °C to 200 °C. Over 370 °C the course of the base line is indistinctive.
Due to the different courses of the DSC-measurements in different crucibles and the capillary measurement it can be concluded that the test item reacts with the aluminium crucible, due to the chemical reaction of the test substance with water which results in neodecanoic acid. This acid is seen to be corrosive to different metals, amongst other aluminium.
The measurement in the open glass crucible showed an endothermic effect with an onset temperature of 57°C (melting point of neodecanoic acid; assumed) and could therefore be assigned to the melting point of neodecanoic acid. During one of the measurements in the open glass crucible the test item melted and and at the same time overflowed the crucible. The second endothermic effect (onset 125°C) resulted due to the decomposition of the test substance under evaporation of decomposition products.
Description of key information
No melting point can be stated. Cobalt borate neodecanoate decomposes before melting. Temperature of decomposition: ca. 125 °C.
Key value for chemical safety assessment
Additional information
The melting point of the test substance was determined according to OECD guideline 102 with the differential scanning calorimetry method (DSC). The test item was heated up from ambient to the final temperature (250 °C and 500 °C, respectively) at a constant heating rate (10 K/min) in a defined atmosphere (nitrogen). The quantity of heat absorbed or released was measured and recorded. Aluminium crucibles with a small hole were used as containers for the test item and as empty reference crucible.
A measurement in a capillary tube in a metal block was used to clarify the results from the DSC-measurement. The maximum temperature of this equipment is limited to 400 °C. Set point and maximum temperature were chosen according to the results of the DSC measurements.
The results from both measurements showed that cobalt, borate neodecanoate complexes, decomposes before melting at approximately 125°C.
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