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Registration Dossier
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Diss Factsheets
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EC number: 205-755-1 | CAS number: 150-25-4
- 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
Flash point
Administrative data
- Endpoint:
- flash point of flammable liquids
- Data waiving:
- study technically not feasible
- Justification for data waiving:
- the study does not need to be conducted because the flash point is only relevant to liquids and low melting point solids
Cross-referenceopen allclose all
- Reason / purpose for cross-reference:
- data waiving: supporting information
Reference
- Endpoint:
- appearance / physical state / colour
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 16 March 2017
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- study well documented, meets generally accepted scientific principles, acceptable for assessment
- Qualifier:
- no guideline followed
- Principles of method if other than guideline:
- Appearance was determined by visual observation, direct and under a microscope. No guideline was followed but sufficient details were given in the study report.
- GLP compliance:
- yes (incl. QA statement)
- Physical state at 20°C and 1013 hPa:
- solid
- Key result
- Form:
- solid: particulate/powder
- Colour:
- white
- Odour:
- other: not determined
- Substance type:
- organic
- Conclusions:
- The substance is a white powder.
- Executive summary:
The substance was visually observed to be a white solid powder. Under a microscope, the substance was observed to be made up of single crystalline particles.
The substance as received at the test facility was observed to be a medium, white crystalline powder with clusters. At 32x magnification under a microscope, the particles appeared to be irregular shaped crystals. Many of the larger particles were rectangular in shape, whilst the smaller particles were irregular in shape. At 400x magnification, the sample was observed to be made up of single crystalline particles.
- Reason / purpose for cross-reference:
- data waiving: supporting information
Reference
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- From 23 January 2017 to 16 March 2017
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Version / remarks:
- 2008
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Version / remarks:
- 1995
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7200 (Melting Point / Melting Range)
- Version / remarks:
- 1998
- Deviations:
- no
- GLP compliance:
- yes
- Type of method:
- differential scanning calorimetry
- Key result
- Melting / freezing pt.:
- 197.1 °C
- Decomposition:
- yes
- Remarks on result:
- other: Decomposition started during melting.
- Conclusions:
- The melting temperature of the substance was determined to be 197°C. Reaction and/or decomposition started during melting.
- Executive summary:
Differential Scanning Calorimetry (DSC) experiments were performed in a GLP study according to EC A.1, OECD 102 and OPPTS 830.7200.
The melting temperature of the substance was determined in duplicate obtaining a mean value of 197°C. Reaction and/or decomposition started during melting.
TGA EXPERIMENT (PRELIMINARY TEST)
From 190°C upwards the weight of the sample decreased significantly. At 197°C the sample weight had decreased by > 10%. At 293°C the sample weight had decreased by 25%.
DSC EXPERIMENT 1
-Endothermic peak between 175°C and 225°C (extrapolated onset temperature: 197.312°C). Based on the high purity of the substance and the observed weight loss in the TGA experiment, it was concluded that this effect was due to melting and reaction and/or decomposition.
-A second endothermic effect started from 250°C. This effect was due to decomposition and/or reaction of the substance.
-After the experiment, a dark orange molten residue remained in the sample container.
-DSC curve: see picture below.
DSC EXPERIMENT 2
- Extrapolated onset temperature of the endothermic melting/decomposition peak: 196.813°C.
- At the end of the experiment (at 225°C), there was a colourless molten residue in the sample container. From this it was concluded that melting and reaction/decomposition was the reason for this effect.
Data source
Materials and methods
Results and discussion
Applicant's summary and conclusion
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.