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Diss Factsheets
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EC number: 910-663-6 | 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
Link to relevant study record(s)
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2010-09-13 to 2010-10-08
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: Guideline study
- Reason / purpose for cross-reference:
- reference to same 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:
- other: Differential scanning calorimetry
- Melting / freezing pt.:
- > 600 °C
- Atm. press.:
- 1 013 mBar
- Remarks on result:
- other: The test item has no melting point under atmospheric conditions up to 600°C. There was no atm. pressuere stated, it was assumed to be 1013mbar.
- Conclusions:
- The test item has no melting point under atmospheric conditions up to 600°C.
Reference
Thermal Stability
The DSC-measurement in a closed glass crucible with the test item showed two endothermal effects in the temperature range of 130 °C to 195 °C and 205 °C to 292 °C, respectively.
Melting Point / Melting Range // Boiling Point / Boiling Range(DSC)
The DSC-run up to the maximum temperature of 600 °C in an aluminium crucible with a hole showed two endothermic effects in the temperature range of 70 °C to 170 °C (this first endothermic effect could at least partially be caused by the evaporation o0f water (water content 15.4% according to sponsor´s information)) and 340 °C to 570 °C(this second endothermic effect could be caused by some kind of physical change, e.g. changes of the crystal structure), respectively with an overall energy of 665 J/g. A mass loss of about 10 mg was detected.
An optical inspection after the measurement showed that the test item was unchanged (regarding both the physical form and the colour of the test item).
No. |
Set point |
Heating rate |
End point |
Melting properties |
Remarks |
1 |
50 °C |
10 K/min |
400 °C |
no melting observed |
Starting at about 100 °C some liquid separated and condensed at the “cold” surface of the glass tube outside the heating block. An optical inspection after the measurement showed that the solid test item was unchanged (black powder). |
In the capillary measurement the main part of the test item showed no changes in the aggregate state. Thus it was concluded, that the test item does not melt or boil up to the temperature of 400 °C.
Description of key information
No melting point can be stated. Reaction mass of cobalt sulphide, nickel sulphide and trinickel disulphide had no melting point under atmospheric conditions up to 600°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 (600 °C) 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 of the optical inspection and the capillary measurement suggest that reaction mass of cobalt sulphide, nickel sulphide and trinickel disulphide has no melting point at atmospheric condition up to the maximum temperature of 600 °C.
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