Registration Dossier
Registration Dossier
Data platform availability banner - registered substances factsheets
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 271-138-9 | CAS number: 68516-20-1 A complex combination of hydrocarbons produced by the distillation of products from a steam-cracking process. It consists predominantly of aromatic hydrocarbons having carbon numbers predominantly in the range of C7 through C12 and boiling in the range of approximately 130°C to 220°C(266°F to 428°F).
- 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://poisoncentres.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:
- 100% Naphtha (petroleum), steam-cracked middle arom.
- Type of composition:
- legal entity composition of the substance
- State / form:
- liquid
- Reference substance:
- 100% Naphtha (petroleum), steam-cracked middle arom.
- Reference substance:
- 100% Naphtha (petroleum), steam-cracked middle arom.
- Reference substance:
- 100% Naphtha (petroleum), steam-cracked middle arom.
- PBT status:
- the substance is not PBT / vPvB
- Justification:
According to ECHA’s guidance[1], the PBT assessment of UVCBs should be conducted on the individual constituents within the UVCB. Therefore, the PBT assessment for this category was conducted by evaluating the individual constituents reported by the registrants. According to the guidance “Constituents, impurities and additives should normally be considered relevant for the PBT/vPvB assessment when they are present in concentration of ≥ 0.1% (w/w).” However, for the sake of proportionality of the efforts required to conduct the PBT assessment and the level of risk being considered, the threshold concentration of ≥ 0.1% (w/w) can be raised for the PBT/vPvB assessment. This will also ensure that there is consistency in the approach used for reporting constituents’ concentrations in the substance identity profile as stipulated in other ECHA guidance.As per the ECHA UVCB guidance, constituents which are CMR and/or PBT above 0.1% and other constituents ≥ 10% areto bereported[2].
The table presented in attached justification documents lists the constituents and their evaluation for each of the PBT criteria. For some constituents, experimental data is available (e.g. benzene, toluene, ethylbenzene, xylenes, naphthalene, styrene, DCPD) for each of the screening criteria. However, for the remaining constituents either the ECHA database was searched for registration dossiers containing the required information to perform the PBT assessment or QSAR (EPIWEB 4.1) were used to arrive at the conclusions presented. The table includes evaluation of all the main criteria of persistence, bioaccumulation and toxicity. However, Annex XIII of the Reach legislation indicates that if there is no indication that the substance is persistent (P) and / or bioaccumulative (B) then no further evaluation of the T property is necessary for the specific purpose of the PBT assessment.
Please refer to the attached justification for the detailed P, B and T analysis table of constituents.
[1]Guidance on Information Requirements and Chemical Safety Assessment: Chapter R.11 – PBT / vPvB Assessment (June 2017)
[2]Guidance for identification and naming of substances under REACH and CLP (May 2017)
- Likely routes of exposure:
This section of the report is not required for non PBT/vPvB substances.
Reference
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.
![ECHA](/o/diss-blank-theme/images/factsheets/A-REACH/factsheet/echa_logo.png)