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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 701-305-8 | 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
Under environmental conditions, there will be no or only a very low environmental availability of the substance Pitch, coal tar, high-temp., < 1% 4- to 5-membered condensed ring aromatic hydrocarbons [EC no. 701-305-8] (CTPhtht) or its constituents. CTPhtht does not show acute aquatic toxicity and is supposed to generate no chronic toxic effects that are relevant for classification. However, for precautionary reasons, environmental risk assessment will take PAHs into account with benzo[a]pyrene (BaP) as marker substance, although the results of BaP describe worst-case conditions rather than being representative of CTPhtht itself.
.Additional information
Effects on aquatic organisms will be presented below for the registration substance CTPhtht, for the supporting substance, Pitch, coal tar, high temp. [CAS no. 65996-93-2], and for the marker substance benzo[a]pyrene.
Acute aquatic toxicity
Due to the poor solubility of CTPhtht in water, this material does not produce noticeable acute aquatic toxicity under standard test conditions in daphnia (OECD TG 202; Aniol et al. 2007a) and in algae (OECD TG 201, Aniol et al. 2007b). The EL50/LL50 values were consistently higher than 100 mg/L (loading).
Pitch, coal tar, high temp. [CAS no. 65996-93-2] as supporting substance exhibited no inhibitory effects on microbial growth and activity. In a cell proliferation test with Pseudomonas putida (Hillmann 1991) and in abioluminescence assay with photobacteria (Weck 1996), the EL0 was 10,000 mg/L.
Chronic aquatic toxicity (CTPhtht and structure-related Pitch, coal tar, high temp. [CAS no. 65996-93-2])
Daphnia: No data is available for CTPhtht itself. However, in a 21d reproduction study in daphnia (semi-static, OECD TG 211, NOACK et al. 2009), no adverse effects were observed in the presence of a water-extract from 100 mg/L powdered coal tar pitch, the structure-analogous compound. The NOEC was greater than 100 mg/L (nominal), which corresponded to a mean water-soluble fraction of 1.3 – 1.4 µg/L of 18 aromatic key compounds (16 EPA PAH plus 2). This underlines the extremely low bioavailability of this kind of compounds.
Alga: In an alga test (OECD TG 201, Aniol et al 2007b), the no-effect loading rate (NOELR) was 100 mg/L (limit concentration). There was no inhibition of the average specific growth rate by CTPhtht at the limit test loading rate of 100 mg/L at any observation time.
Fish: Long-term studies in fish are not available. However, CTPhtht is not supposed to generate chronic toxic effects that are relevant for classification taking into account test results for daphnia and alga.
Chronic aquatic toxicity (marker substance benzo[a]pyrene)
Daphnia: Long-term toxicity of BaP to daphnia was examined in a test according to the French guideline series AFNOR using Ceriodaphnia dubia (Bisson et al. 2000). EC10 (7d) was determined to 0.507 µg/L (meas.).
Alga: In a test with alga similar to EU method C.3 using BaP as test substance, an EC10 (72 h) of 0.78 µg/L (meas.) was determined (Bisson et al. 2000).
Fish: Long-term toxicity of BaP to fish was examined in an ELS study similar to OECD TG 210. A NOEC (42 d) of 4 µg/L (meas.) was determined.
Marine species: Long-term toxicity of BaP was determined in two marine species (molluscs and echinoderms). EC10 (48h) for the embryonic development of the salt water oyster Crassostrea gigas under UV-radiation was 0.5 µg/L (meas.) (Lyons et al. 2002). NOEC for developmental toxicity (gastrulation) of the purple sea urchin Strongylocentrotus purpuratus was also 0.5 µg/L (nominal) (Hose et al. 1985).
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.