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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: 202-327-6 | CAS number: 94-36-0
- 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_ecotoxicological-information.png)
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 0.02 µg/L
- Assessment factor:
- 50
- Extrapolation method:
- assessment factor
- PNEC freshwater (intermittent releases):
- 0.602 µg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0.002 µg/L
- Assessment factor:
- 500
- Extrapolation method:
- assessment factor
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 0.35 mg/L
- Assessment factor:
- 100
- Extrapolation method:
- assessment factor
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 0.013 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 0.001 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Hazard for air
Air
- Hazard assessment conclusion:
- no hazard identified
Hazard for terrestrial organisms
Soil
- Hazard assessment conclusion:
- PNEC soil
- PNEC value:
- 0.003 mg/kg soil dw
- Extrapolation method:
- equilibrium partitioning method
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- no potential for bioaccumulation
Additional information
Conclusion on classification
Dibenzoyl peroxide has a Log Kow of 3.2 (OECD 117) indicating a low potential for bioaccumulation. The substance is classified as readily biodegradable.
The acute aquatic toxicity data (C(E)L50) based on the lowest of the available toxicity values is between 0.01 and 0.1 mg/L.
Tow long-term aquatic toxicity dataare available for two trophic levels: algae and invertebrates. The lowest long-term toxic data corresponds to EC10 of 0.001 mg/L(from OECD 211).
The aquatic hazard classification based on these data according to CLP criteria (Regulation No 1272/2008) is:
Category Acute 1, M-factor = 10
Category Chronic 1, M-factor = 10
One key study is available for each of the following endpoints:
Acute toxicity to Daphnia magna
|
Initial mean measured Dibenzoyl peroxide (mg/L) |
EC50 (48 h) |
0.110 [0.0765, 0.157] |
No observed effect concentration (NOEC) |
0.0765 |
[95% confidence limits]
Algal growth inhibition assay
|
Initial measured Dibenzoyl peroxide (mg/L) |
Area under the growth curve |
|
EbC50(72 h) |
0.0422 [0.0230, 0.0661] |
No observed effect concentration (NOEC) |
0.02 |
Average specific growth rate |
|
ErC50 (0 - 72 h) |
0.0711 [0.0643, 0.0729] |
No observed effect concentration (NOEC) |
0.02 |
Yield |
|
EyC50 (0 - 72 h) |
0.0613 [0.0248, 0.0687] |
No observed effect concentration (NOEC) |
0.02 |
[95% confidence limits]
Acute toxicity to fish
|
Initial mean measured Dibenzoyl peroxide (mg/L) |
EC50 (96 h) |
0.0602 [0.0477, 0.0856] |
No observed effect concentration (NOEC) |
0.0316 |
[95% confidence limits]
Chronic toxicity to invertebrates
|
Mean measured Dibenzoyl peroxide (mg/L) |
EC10 (21d) reproduction |
0.001 [0.0001, 0.0018] |
No observed effect concentration (NOEC) |
0.0011 |
[95% confidence limits]
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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