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Diss Factsheets
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EC number: 287-466-0 | CAS number: 85508-41-4
- 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
Particle size distribution (Granulometry)
Administrative data
Link to relevant study record(s)
- Endpoint:
- particle size distribution (granulometry)
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Study period:
- 2015-03-05
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- comparable to guideline study
- Qualifier:
- no guideline followed
- Principles of method if other than guideline:
- Laser light scattering. The test was performed according to the SOP - STR 071 Ed. 03 (Hydro 2000S-A) protocol.
The particle size distribution was analyzed using the Mastersizer 2000 tool, which uses the technique of laser diffraction to measure the size of particles. It measures the intensity of light scattered as a laser beam passes through a dispersed particulate sample. This data is then analyzed to calculate the size of the particles that created the scattering pattern.
This test was conducted on milled test material to be used for registration purposes only. The substance will not be put on the marlet in this form. The marketed material is either spray dried into micro-particles or mixed with deduster and hence has a distinctly higher particle size. - GLP compliance:
- no
- Type of method:
- Laser scattering/diffraction
- Type of distribution:
- volumetric distribution
- Percentile:
- D10
- Mean:
- ca. 3.564 µm
- Remarks on result:
- other: after 2 minutes of ultrasonic treatment
- Percentile:
- D50
- Mean:
- ca. 9.806 µm
- Remarks on result:
- other: after 2 minutes of ultrasonic treatment
- Percentile:
- D90
- Mean:
- ca. 25.254 µm
- Remarks on result:
- other: after 2 minutes of ultrasonic treatment
- Conclusions:
- MD10 = 3.564 µm
MD50 = 9.806 µm
MD90 = 25.254 µm - Executive summary:
Method
The substance has been tested for granulometry by the volumetric distribution.
The particle size distribution was analyzed using the Mastersizer 2000 tool, which uses the technique of laser diffraction to measure the size of particles. It measures the intensity of light scattered as a laser beam passes through a dispersed particulate sample. This data is then analyzed to calculate the size of the particles that created the scattering pattern.
Results
MD10 = 3.564 µm
MD50 = 9.806 µm
MD90 = 25.254 µm
- Endpoint:
- particle size distribution (granulometry)
- Data waiving:
- study scientifically not necessary / other information available
- Justification for data waiving:
- the study does not need to be conducted because the substance is marketed or used in a non solid or granular form
Referenceopen allclose all
After 2 minutes of ultrasonic treatment.
Description of key information
The granulometry study does not need to be conducted as the substance is marketed or used in a granular or dedusted form. The substance is either isolated by spray drying into the composite microgranular form or the wet press cake is mixed with dedusting agents prior to drying which form a coat around the dye particles and hence increase the particle size distinctly. As such, the particle size is not a function of the chemical but a function of the formulation procedure (spray dryer, dedusting, solution) used; a typical particle size distribution for dyes isolated as low dust granules is as follows: 10% < 123 µm; 25% < 159 µm; 50% < 207 µm; 75% < 266 µm; 90% < 326 µm.
The test substance used for regulatory testing is especially milled into small particles to enable a testing of the substance with sufficient exposure. It does not represent the particle size of the substance placed on the market.
The measured distribution of the milled substance is a follows:
MD10 = 3.564 µm
MD50 = 9.806 µm
MD90 = 25.254 µm
Additional information
The test substance used for regulatory testing is especially milled into small particles to enable a testing of the substance with sufficient exposure. It does not represent the particle size of the substance placed on the market.
The particle size distribution of the milled test substance was measured by laser light scattering. The test was performed according to the SOP - STR 071 Ed. 03 (Hydro 2000S-A) protocol.
The particle size distribution was analyzed using the Mastersizer 2000 tool, which uses the technique of laser diffraction to measure the size of particles. It measures the intensity of light scattered as a laser beam passes through a dispersed particulate sample. This data is then analyzed to calculate the size of the particles that created the scattering pattern.
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.