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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 223-276-6 | CAS number: 3806-34-6
- 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
Toxicological Summary
- Administrative data
- Workers - Hazard via inhalation route
- Workers - Hazard via dermal route
- Workers - Hazard for the eyes
- Additional information - workers
- General Population - Hazard via inhalation route
- General Population - Hazard via dermal route
- General Population - Hazard via oral route
- General Population - Hazard for the eyes
- Additional information - General Population
Administrative data
Workers - Hazard via inhalation route
Systemic effects
Long term exposure
- Hazard assessment conclusion:
- DNEL (Derived No Effect Level)
- Value:
- 11 mg/m³
- Most sensitive endpoint:
- repeated dose toxicity
- Route of original study:
- Oral
DNEL related information
- DNEL derivation method:
- ECHA REACH Guidance
- Overall assessment factor (AF):
- 25
- Modified dose descriptor starting point:
- NOAEC
- Value:
- 264 mg/m³
- Explanation for the modification of the dose descriptor starting point:
- 300 mg/kg/day x (1/0.38) x (50 oral abs/100 inhalation abs) x (6.7/10)
- AF for dose response relationship:
- 1
- Justification:
- No adverse effects observed in repeat dose, reproductive toxicity studies, or genetox
- AF for differences in duration of exposure:
- 2
- Justification:
- Default factor for subchronic to chronic study extrapolation
- AF for interspecies differences (allometric scaling):
- 1
- Justification:
- Already taken into account during the correction of starting point
- AF for other interspecies differences:
- 2.5
- Justification:
- Default factor for remaining toxicodynamic differences
- AF for intraspecies differences:
- 5
- Justification:
- Default factor for workers
- AF for the quality of the whole database:
- 1
- Justification:
- Database appropriate for tonnage. 2 species utilised in repeat dose toxicity.
- AF for remaining uncertainties:
- 1
- Justification:
- No remaining uncertainties
Acute/short term exposure
- Hazard assessment conclusion:
- no hazard identified
DNEL related information
Local effects
Long term exposure
- Hazard assessment conclusion:
- no hazard identified
Acute/short term exposure
- Hazard assessment conclusion:
- no hazard identified
DNEL related information
Workers - Hazard via dermal route
Systemic effects
Long term exposure
- Hazard assessment conclusion:
- DNEL (Derived No Effect Level)
- Value:
- 15 mg/kg bw/day
- Most sensitive endpoint:
- repeated dose toxicity
- Route of original study:
- Oral
DNEL related information
- DNEL derivation method:
- ECHA REACH Guidance
- Overall assessment factor (AF):
- 100
- Modified dose descriptor starting point:
- NOAEL
- Value:
- 1 500 mg/kg bw/day
- Explanation for the modification of the dose descriptor starting point:
- 300 mg/kg bw/day x (50% oral abs/10% derm abs)
- AF for dose response relationship:
- 1
- Justification:
- No adverse effects observed in repeat dose, reproductive toxicity studies, or genetox
- AF for differences in duration of exposure:
- 2
- Justification:
- Default factor for subchronic to chronic study extrapolation
- AF for interspecies differences (allometric scaling):
- 4
- Justification:
- Default factor for extrapolating toxicokinetics from Rat to Human
- AF for other interspecies differences:
- 2.5
- Justification:
- Default factor for remaining toxicodynamic differences
- AF for intraspecies differences:
- 5
- Justification:
- Default factor for workers
- AF for the quality of the whole database:
- 1
- Justification:
- Database appropriate for tonnage. 2 species utilised in repeat dose toxicity.
- AF for remaining uncertainties:
- 1
- Justification:
- No remaining uncertainties
Acute/short term exposure
- Hazard assessment conclusion:
- no hazard identified
DNEL related information
Local effects
Long term exposure
- Hazard assessment conclusion:
- no hazard identified
Acute/short term exposure
- Hazard assessment conclusion:
- no hazard identified
Workers - Hazard for the eyes
Local effects
- Hazard assessment conclusion:
- no hazard identified
Additional information - workers
In reliable 90 day dietary studies in the rat and the dog the NOEL were the top doses tested (3000 ppm). This dose level was converted to a bodyburden of 300 mg/kg bw/day by using a conversion factor of 0.1. In acute oral, dermal and inhalation toxicity studies no adverse effects were observed at the limit dose in the dermal toxicity study, at 10 g/kg in the oral study or at 2 mg/L in the inhalation study. No local tolerance issues were identified from skin irritation, skin sensitisation, eye irritation or acute inhalation toxicity studies. The NOEL for all effects in the OECD 421 reproduction screen conducted was to top dose tested, 1000 mg/kg bw/day.
General Population - Hazard via inhalation route
Systemic effects
Long term exposure
- Hazard assessment conclusion:
- DNEL (Derived No Effect Level)
- Value:
- 2.6 mg/m³
- Most sensitive endpoint:
- repeated dose toxicity
- Route of original study:
- Oral
DNEL related information
- DNEL derivation method:
- ECHA REACH Guidance
- Overall assessment factor (AF):
- 50
- Modified dose descriptor starting point:
- NOAEC
- Value:
- 130 mg/m³
- Explanation for the modification of the dose descriptor starting point:
- 300 x (1/1.15) x (50% oral abs/100% inhal abs)
- AF for dose response relationship:
- 1
- Justification:
- No adverse effects observed in repeat dose, reproductive toxicity studies, or genetox
- AF for differences in duration of exposure:
- 2
- Justification:
- Default factor for subchronic to chronic study extrapolation
- AF for interspecies differences (allometric scaling):
- 1
- Justification:
- Already taken into account during the correction of starting point
- AF for other interspecies differences:
- 2.5
- Justification:
- Default factor for remaining toxicodynamic differences
- AF for intraspecies differences:
- 10
- Justification:
- Default factor for the general population
- AF for the quality of the whole database:
- 1
- Justification:
- Database appropriate for tonnage. 2 species utilised in repeat dose toxicity.
- AF for remaining uncertainties:
- 1
- Justification:
- No remaining uncertainties
Acute/short term exposure
- Hazard assessment conclusion:
- no hazard identified
DNEL related information
Local effects
Long term exposure
- Hazard assessment conclusion:
- no hazard identified
Acute/short term exposure
- Hazard assessment conclusion:
- no hazard identified
DNEL related information
General Population - Hazard via dermal route
Systemic effects
Long term exposure
- Hazard assessment conclusion:
- DNEL (Derived No Effect Level)
- Value:
- 7.5 mg/kg bw/day
- Most sensitive endpoint:
- repeated dose toxicity
- Route of original study:
- Oral
DNEL related information
- DNEL derivation method:
- ECHA REACH Guidance
- Overall assessment factor (AF):
- 200
- Modified dose descriptor starting point:
- NOAEL
- Value:
- 1 500 mg/kg bw/day
- Explanation for the modification of the dose descriptor starting point:
- 300 mg/kg bw/day x (50% oral abs/10% derm abs)
- AF for dose response relationship:
- 1
- Justification:
- No adverse effects observed in repeat dose, reproductive toxicity studies, or genetox
- AF for differences in duration of exposure:
- 2
- Justification:
- Default factor for subchronic to chronic study extrapolation
- AF for interspecies differences (allometric scaling):
- 4
- Justification:
- Default factor for extrapolating toxicokinetics from Rat to Human
- AF for other interspecies differences:
- 2.5
- Justification:
- Default factor for remaining toxicodynamic differences
- AF for intraspecies differences:
- 10
- Justification:
- Default factor for the general population
- AF for the quality of the whole database:
- 1
- Justification:
- Database appropriate for tonnage. 2 species utilised in repeat dose toxicity
- AF for remaining uncertainties:
- 1
- Justification:
- No remaining uncertainties
Acute/short term exposure
- Hazard assessment conclusion:
- no hazard identified
DNEL related information
Local effects
Long term exposure
- Hazard assessment conclusion:
- no hazard identified
Acute/short term exposure
- Hazard assessment conclusion:
- no hazard identified
General Population - Hazard via oral route
Systemic effects
Long term exposure
- Hazard assessment conclusion:
- DNEL (Derived No Effect Level)
- Value:
- 1.5 mg/kg bw/day
- Most sensitive endpoint:
- repeated dose toxicity
- Route of original study:
- Oral
DNEL related information
- DNEL derivation method:
- ECHA REACH Guidance
- Overall assessment factor (AF):
- 200
- Modified dose descriptor starting point:
- NOAEL
- Value:
- 300 mg/kg bw/day
- Explanation for the modification of the dose descriptor starting point:
- None
- AF for dose response relationship:
- 1
- Justification:
- No adverse effects observed in repeat dose, reproductive toxicity studies, or genetox
- AF for differences in duration of exposure:
- 2
- Justification:
- Default factor for subchronic to chronic study extrapolation
- AF for interspecies differences (allometric scaling):
- 4
- Justification:
- Default factor for extrapolating toxicokinetics from Rat to Human
- AF for other interspecies differences:
- 2.5
- Justification:
- Default factor for remaining toxicodynamic differences
- AF for intraspecies differences:
- 10
- Justification:
- Default factor for the general population
- AF for the quality of the whole database:
- 1
- Justification:
- Database appropriate for tonnage. 2 species utilised in repeat dose toxicity
- AF for remaining uncertainties:
- 1
- Justification:
- No remaining uncertainties
Acute/short term exposure
- Hazard assessment conclusion:
- no hazard identified
DNEL related information
General Population - Hazard for the eyes
Local effects
- Hazard assessment conclusion:
- no hazard identified
Additional information - General Population
In reliable 90 day dietary studies in the rat and the dog the NOEL were the top doses tested (3000 ppm). This dose level was converted to a bodyburden of 300 mg/kg bw/day by using a conversion factor of 0.1. In acute oral, dermal and inhalation toxicity studies no adverse effects were observed at the limit dose in the dermal toxicity study, at 10 g/kg in the oral study or at 2 mg/L in the inhalation study. No local tolerance issues were identified from skin irritation, skin sensitisation, eye irritation or acute inhalation toxicity studies. The NOEL for all effects in the OECD 421 reproduction screen conducted was to top dose tested, 1000 mg/kg bw/day.
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.