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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
Diss Factsheets
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EC number: 271-178-7 | CAS number: 68516-75-6
- 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
![](https://echa.europa.eu/o/diss-blank-theme/images/factsheets/A-REACH/factsheet/print_classification-and-labelling-and-pbt-assessment.png)
PBT assessment
Administrative data
PBT assessment: overall result
- Name:
- Pigment Brown 41
- Type of composition:
- legal entity composition of the substance
- State / form:
- solid: nanoform
- Related composition:
- Pigment Brown 41
- Reference substance:
- Pigment Brown 41
- Type of information reported:
- single nanoform
- Name of nanoform:
- C.I. Pigment Brown 41 - joint submission
- Shape category:
- spheroidal
- Remarks:
- multimodal shapes containing about 50% spheroidal particles and about 50% elongated particles
- Shape:
- cubic
- Pure shape:
- no
- Typical composition:
- ca. 45 %
- Range:
- > 19 - < 60 %
- Shape category:
- spheroidal
- Remarks:
- multimodal shapes containing about 50% spheroidal particles and about 50% elongated particles
- Shape:
- spherical
- Pure shape:
- no
- Typical composition:
- ca. 5 %
- Range:
- > 1 - < 10 %
- Shape category:
- elongated
- Remarks:
- multimodal shapes containing about 50% spheroidal particles and about 50% elongated particles
- Shape:
- rod
- Pure shape:
- no
- Typical composition:
- ca. 50 %
- Range:
- > 30 - < 80 %
- Shape category:
- spheroidal
- Remarks:
- multimodal shapes containing about 50% spheroidal particles and about 50% elongated particles
- Percentile:
- D10
- Typical value:
- ca. 0.025 μm
- Range:
- ca. 0.01 - ca. 0.045 μm
- Percentile:
- D50
- Typical value:
- ca. 0.042 μm
- Range:
- ca. 0.02 - ca. 0.06 μm
- Percentile:
- D90
- Typical value:
- ca. 0.069 μm
- Range:
- ca. 0.05 - ca. 0.09 μm
- Fraction of constituent particles in the size range 1-100 nm:
- >= 80 - ca. 100 %
- Shape category:
- elongated
- Remarks:
- multimodal shapes containing about 50% spheroidal particles and about 50% elongated particles
- Percentile:
- D10
- Typical value:
- ca. 0.025 μm
- Range:
- ca. 0.01 - ca. 0.045 μm
- Percentile:
- D50
- Typical value:
- ca. 0.042 μm
- Range:
- ca. 0.02 - ca. 0.06 μm
- Percentile:
- D90
- Typical value:
- ca. 0.069 μm
- Range:
- ca. 0.05 - ca. 0.09 μm
- Typical length:
- ca. 0.216 μm
- Range of length:
- ca. 0.055 - ca. 0.38 μm
- Typical aspect ratio (:1):
- ca. 4.2 :1
- Range of aspect ratio (:1):
- >= 4 - <= 4.4
- Fraction of constituent particles in the size range 1-100 nm:
- >= 80 - ca. 100 %
- Structure:
- crystalline
- Name:
- C.I. Pigment Brown 41
- Pure structure:
- yes
- Typical composition:
- 100 %
- Crystal system:
- other: unknown
- Typical specific surface area:
- ca. 48 m²/g
- Range of specific surface area:
- >= 33 - <= 63 m²/g
- Skeletal density:
- 1.562 g/cm³
- Surface treatment applied:
- no
- Name:
- Pigment Brown 41
- Type of composition:
- boundary composition of the substance
- State / form:
- solid: nanoform
- Reference substance:
- Pigment Brown 41
- Type of information reported:
- single nanoform
- Name of nanoform:
- C.I. Pigment Brown 41 - joint submission
- Shape category:
- spheroidal
- Shape:
- cubic
- Pure shape:
- no
- Range:
- > 19 - < 60 %
- Shape category:
- spheroidal
- Shape:
- spherical
- Pure shape:
- no
- Range:
- > 1 - < 10 %
- Shape category:
- elongated
- Shape:
- rod
- Pure shape:
- no
- Range:
- > 30 - < 80 %
- Shape category:
- spheroidal
- Percentile:
- D10
- Range:
- ca. 0.01 - ca. 0.055 μm
- Percentile:
- D50
- Range:
- ca. 0.015 - ca. 0.07 μm
- Percentile:
- D90
- Range:
- ca. 0.04 - ca. 0.1 μm
- Fraction of constituent particles in the size range 1-100 nm:
- >= 80 - ca. 100 %
- Shape category:
- elongated
- Percentile:
- D10
- Range:
- ca. 0.01 - ca. 0.055 μm
- Percentile:
- D50
- Range:
- ca. 0.015 - ca. 0.07 μm
- Percentile:
- D90
- Range:
- ca. 0.04 - ca. 0.1 μm
- Range of length:
- > 0.01 - < 0.54 μm
- Range of aspect ratio (:1):
- >= 3.8 - <= 4.6
- Fraction of constituent particles in the size range 1-100 nm:
- >= 80 - ca. 100 %
- Structure:
- crystalline
- Name:
- C.I. Pigment Brown 41 - joint submission
- Pure structure:
- yes
- Range of specific surface area:
- >= 5 - <= 125 m²/g
- Surface treatment applied:
- no
- PBT status:
- the substance is not PBT / vPvB
- Justification:
It is concluded here that the registration substance
- is not ready biodegradable and are considered to fulfil the (v)P criterion
- is not fulfilling the B (or vB) criterion
- and is not fulfilling the T criterion
and therefore is evaluated to be not PBT or vPvB substance.
- Likely routes of exposure:
The submission substance is not PBT or vPvB. Therefore no emission characterisation is required.
Referenceopen allclose all
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.
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