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Diss Factsheets
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EC number: 254-179-7 | CAS number: 38888-98-1
- 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
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Endpoint summary
Administrative data
Description of key information
Additional information
Available information:
1,1 -DPE:
The biodegradation of 1,1-DPE was investigated in a CO2 Evolution Test according to OECD Guideline 301B. For 1-Phenylethylbenzene, the 10-day window started on Day 19 with a mean biodegradation of 12.23%, and ended on Day 29 with a mean biodegradation of 20.93%. At 28 days, 1-Phenylethylbenzene achieved a maximum mean biodegradation of 21.83%. Therefore, the test substance is not considered readily biodegradable.
The biodegradation of 1,1 -DPE (Dowtherm Q; 1,1-DPE: 62 - 68%) was investigated in a CO2 Evolution Test similar to OECD 301B. The method consisted of an inoculum adaptation period followed by a 29 day shake flask biodegradation test with a defined medium. 40.6% (+/- 2.9%) of the nominal concentration of the compound was mineralized to CO2. 1,1 -DPE was not readily biodegradable, but inherently biodegaradable under the conditions of the test performed.
SAS-40:
The biodegradation of SAS-40 was investigated in a Modified MITI Test according to
EEC Directive 79/831, Annex V, Part C, section 5.2.A.After a lag-phase of 5 days about 15 % biodegradation of the test substance was achieved within 4 days. Biodegradation stopped until day 17. Then the biodegradation started again. After an incubation time of 45 days a final degradation of 60 % was achieved .
PTE:
The biodegradation of Phenyl-tolyl-ethane was investigated in a CO2 Evolution Test according to OECD 301B.
Phenyl-tolyl-ethane was not readily biodegradable under the conditions of the modified Sturm test performed.
SAS-296:
A biodegradation study according to OECD Test Guideline 301 C was conducted. Based on the BOD analysis no biodegradation was observed in 28 days whilst 6, 5 and 3 % of primary degradation rates were determined by HPLC analysis. Taking into account the above results, it is concluded that the substance is not readily biodegradable. No data on inherent biodegradation test is available.
Conclusion:
The available data on biodegradation by extrapolation clearly indicates that 1,1’-DPE is not readily biodegradable but only inherently biodegradable as is the case for all members of the diphenylmethane category.
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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