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EC number: 701-299-7 | CAS number: -
- 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
Endpoint summary
Administrative data
Description of key information
Additional information
The substance ’Naphtha (petroleum), steam-cracked, C8-10 aromatic hydrocarbon fraction, alkylated and oligomerised’ (NAF-AO) [EC no. 701-299-7] is a UVCB substance and consists of various constituents that can be divided into three component groups. These are dimers, trimers, and oligomers (n ≥ 4) formed during the production process from the monomeric starting material ‘C8-10 aromatic hydrocarbon fraction’.
The aquatic toxicity was tested in short-term toxicity tests with fish and aquatic invertebrates (daphnia) and in toxicity tests with algae and with aquatic microorganisms (respiratory inhibition). Test materials were different types (technical products) of NAF-AO (short-term test with aquatic invertebrates (daphnia) and toxicity test with algae). In addition, the structure related substance ‘Oligomerisation and alkylation reaction products of 2-phenylpropene and phenol’ (OAPP) [EC no. 700-960-7] was used as supporting substance (source substance) for read-across (short-term toxicity to fish and toxicity to microorganisms). OAPP is also a complex UVCB substance and contains except other components also two of the component groups that are present in NAF-AO (dimers and trimers).
Due to the complex composition and variable but low/very low solubility of its components, water solubility of both substances is not clearly defined. Depending on the quantity used, concentration of material dissolved in saturated water samples is variable. Therefore, water accommodated fractions (WAFs) have been used in aquatic toxicity testing. Thus, results of the aquatic toxicity tests are given as loadings (LL/EL50, LL/EL0, NOELR).
Short-term toxicity tests with fish have been carried out with OAPP as test substance. The LL50 (LL = lethal loading) was determined to be 25.8 mg/L.
Short-term Daphnia tests were performed with three different technical products of NAF-AO (Novares L 100, L 800, and TC 10). The daphnia 48-h EL50 values range from 54 mg/L to > 1000 mg/L.
In the toxicity test to aquatic algae, two technical products of NAF-AO were used as test materials. Novares L 100 produced no adverse effects on algal growth (EL50 >100 mg/L, NOELR = 100 mg/L) in a limit test. The same result was obtained in a limit test with the test material Novares TL 10.
Toxicity to aqueous microorganisms was tested with OAPP as test substance. In an activated sludge respiratory inhibition test, no adverse effects on the respiratory rate of sludge microorganisms was observed (limit test: EL50 > 100 mg/L, NOELR = 100 mg/L).
The highest toxicity to aquatic organism was determined with OAPP as test substance in the short-term toxicity test to fish (EL50 = 25.8 mg/L). This result is adopted for the chemical safety assessment and the derivation of PNECs of NAF-AO.
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.
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