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EC number: 932-235-8 | 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
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Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
To determine the biodegradation characteristics of Hydrocarbons C11-C14, n-alkanes, isoalkanes, cyclics, aromatics (2-25%), undecan-1-ol and dodecan-1-ol the following key studies have been conducted:
- OECD Guideline 301 F (Ready Biodegradability: Manometric Respirometry Test) with Alchisor TAL (Cidaria 1998;
- OECD Guideline 301 F (Ready Biodegradability: Manometric Respirometry Test) with Shellsol H (ExxonMobil 1995);
- OECD Guideline 301 D (Ready Biodegradability: Closed Bottle Test) with decan-1-ol (Richterich 2002);
- OECD Guideline 301 D (Ready Biodegradability: Closed Bottle Test) with dodecan-1-ol (Werner 1993.
Key value for chemical safety assessment
- Biodegradation in water:
- readily biodegradable
Additional information
Alchisor TAL 123 can be characterised according to three constituents: Hydrocarbons C11-C14, n-alkanes, isoalkanes, cyclics, aromatics (2-25%), undecan-1-ol and dodecan-1-ol. As defined in the Read-Across Justification Document in section 13, data provided for these constituents when considered together is representative of Alchisor TAL 123 and suitable for assessment purposes. Study data for each constituent has been evaluated and considered together. In a protective approach the most sensitive study result from across the three constituents has been identified and used to address the endpoint in question.
Alchisor TAL123 was assessed for ready biodegradability in a reliable (Klimisch 1), GLP compliant OECD Guideline 301 F (Ready Biodegradability: Manometric Respirometry Test) study. In this test Alchisor TAL 123 biodegraded to an extent of 78% after 28 days with an unacclimated sewage sludge inoculum. The test substance did not achieve 60% degradation with a 10-day window for ready biodegradability; Alchisor TAL 123 degraded nearly 56% within the 10-day window. As Alchisor TAL 123 is a mixture, the 10-day window test is not applicable as the only determination of ready biodegradability as different components of the mixture can degrade preferentially (reference TG 103C). Consequently according to this study Alchisor TAL 123 can be considered readily biodegradable. In addition available information for the constituents of Alchisor TAL 123 supports this finding.
Hydrocarbons C11 -C14, n-alkanes, isoalkanes, cyclics, aromatics (2-25%)
Shellsol H (identified as a mixture of aliphatic and aromatic hydrocarbons) was assessed for ready biodegradability in a reliable (Klimisch 1), GLP compliant OECD Guideline 301 F (Ready Biodegradability: Manometric Respirometry Test) study. In this test Shellsol H biodegraded to an extent of approximately 75% after 28 days with an unacclimated sewage sludge inoculum. The test substance was determined to be readily biodegradable.
Undecan-1-ol
Evidence to support the ready biodegradability of the C11 alcohol, undecan-1-ol focuses on tests with both a C10 and C12 alcohol. In an OECD 301D test Richterich 2002 assessed the biodegradation potential of lorol C10 1-decanol. 88% degradation of the test substance was reported within 30 days. Werner 1993 reported on an OECD 301D test with the C12 alcohol, dodecan-1-ol. 79% degradation of the test item was reported within 28 days and so a result of ready biodegradable was recorded. Read-across based on the grouping of substances (category approach) was applied to this data set and consequently provides a weight of evidence confirming that undecan-1-ol is readily biodegradable.
Dodecan-1-ol
A variety of different studies have been conducted with the C12 alcohol, dodecan-1-ol. A reliable (Klimisch 2), GLP compliant test was conducted according to OECD 301D (Werner 1993) with dodecan-1-ol. 79% degradation of the test item was reported within 28 days. The test substance was determined to be readily biodegradable. Dodecan-1-ol was reported as readily biodegradable in a number of other tests. The Vista Chemical Company 1994 reported on a test performed in accordance with EPA OPPTS 835.3100. This EPA guideline corresponds to OECD 301B except for a deviation in which dichloromethane (30ml) is utilized to increase the bioavailability of the alcohol. In this test dodecan-1-ol was found to be inherently biodegradable. Morris 1991, Henkel 1992 and P&G 2009 all found the test item to be readily biodegradable. The evidence presented here indicates that dodecan-1-ol can be regarded as being readily biodegradable.
In accordance with the protective approach defined above the most sensitive study result from all the constituents can be applied to the full Alchisor TAL 123 endpoint. As detailed above the selected representative constituents of Alchisor TAL 123 are reported to be readily biodegradable. In addition to the Alchisor TAL 123 specific study, this data for constituents of Alchisor TAL 123 provides further evidence to support the assertion that it is readily biodegradable.
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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