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Diss Factsheets
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EC number: 271-626-1 | CAS number: 68602-85-7
- 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
PBT assessment
Administrative data
PBT assessment: overall result
- Name:
- Hydrocarbon waxes (petroleum), oxidized, Me esters
- Type of composition:
- legal entity composition of the substance
- State / form:
- solid: bulk
- Reference substance:
- Hydrocarbon waxes (petroleum), oxidized, Me esters
- Reference substance:
- Hydrocarbon waxes (petroleum), oxidized, Me esters
- Reference substance:
- Hydrocarbon waxes (petroleum), oxidized, Me esters
- Reference substance:
- Hydrocarbon waxes (petroleum), oxidized, Me esters
- Reference substance:
- Hydrocarbon waxes (petroleum), oxidized, Me esters
- Reference substance:
- Hydrocarbon waxes (petroleum), oxidized, Me esters
- Reference substance:
- Hydrocarbon waxes (petroleum), oxidized, Me esters
- PBT status:
- the substance is not PBT / vPvB
- Justification:
The test item is a very complex mixture of oxidized species derived from a paraffinic (straight-chain) hydrocarbon slack wax and individual components cannot be isolated in pure form. The product contains only carbon, hydrogen, and oxygen (functional groups include alcohols, carboxylic acids, their condensed esters, and other oxidation products like aldehydes and ketones). There are no aromatic species present. The different chemical classes present in the registered substance contain a fairly broad molecular weight distribution and the substance is a UVCB primarily due to the variation in molecular weight of the constituent esters. The slack wax is itself a UVCB and is predominately composed of linear straight chain hydrocarbons from C18 to C35 in chain length. The oxidized material shows a much broader molecular weight range with carbon numbers from about 5 to 65. The acidic species in the oxidized hydrocarbon are then esterified with methanol. However, the functional groups present in the product (fatty acids, fatty acid methyl esters, fatty esters, and unreacted paraffinic hydrocarbon wax) are not expected to have a significantly different PBT profile. Additionally, since all alkyl groups are derived from a linear chain, they are expected to have a similar PBT profile.In line with ECHA Guidance on Information Requirements and Chemical Safety Assessment Chapter R.11: PBT/vPvB assessment, application of the ‘whole substance’ approach is therefore considered suitable.
Persistence
Potentially P or vP
The test item attained only 49 % biodegradation after 28 days (OECD 301B and EU Method C.4-C) and is a complex mixture for which investigation of hydrolysis via OECD 111 and EU Method C.7 is not suitable because solubility is low even in strong organic solvents and no analytical method was available to support the hydrolysis test at low concentration in water. In accordance with ECHA Guidance on Information Requirements and Chemical Safety Assessment Chapter R.11: PBT/vPvB assessment (Version 3.0; June 2017), the substance is considered to be potentially persistent or very persistent.
Bioaccumulation
Not B or vB
Log Kow was determined to be > 10.0 using the HPLC method (OECD 117 and EU Method A.8). The substance is not expected to bioaccumulate because, in accordance with ECHA Guidance on information requirements and chemical safety assessment Chapter R11: PBT/vPvB assessment (Version 3.0; November 2017), a decreasing relationship between BCF and Log Kow is observed at high Log Kow (> 6) and the aquatic BCF of a substance is likely to be < 2000 if the Log10 Kow value is higher than 10.
Toxicity
Potentially T
Based on available evidence, and in accordance with Regulation (EC) No. 1272/2008, the substance does not meet the criteria for classification as a carcinogen (category 1A or 1B), germ cell mutagen (category 1A or 1B) or reproductive toxin (category 1A, 1B or 2). Furthermore, there is no evidence of chronic toxicity and the substance does not meet the criteria for classification for specific target organ toxicity (STOT RE 1 or STOT RE 2). Results from short-term tests on three trophic levels provide no evidence of environmental toxicity long-term testing is considered to be unnecessary because the Chemical Safety Assessment gives no cause for concern. Nevertheless, the available acute data are considered screening information and cannot be used to definitively conclude not T even though the substance is not classified as environmentally hazardous (see ECHA guidance on Information Requirements and Chemical Safety Assessment Chapter R.11: PBT/vPvB assessment; Version 3.0, June 2017).
- Likely routes of exposure:
Human exposure via the dermal route plus release to the environment via waste water.
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.