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EC number: 271-808-0 | CAS number: 68608-89-9 This substance is identified by SDA Substance Name: C11-C13 branched alkyl benzene sulfonic acid sodium salt and SDA Reporting Number: 25-097-04.
- 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
No specific studies on BABS Na salt were available. However, a series of studies are available on analogue linear alkyl benzene sulfonates (LAS). The LAS structure is a C10 to C13 linear alkyl chain with a para-substituted benzene sulfonic acid sodium salt group attached at any of the secondary alkyl chain carbon positions. The alkyl chain length averages 11.6. LAS is structurally similar to BABS Na salt, as both are para C11-C13 alkylbenzene sulfate sodium salts. The primary difference is whether the alkyl chain is linear or branched. Based on structural similarities, LAS is a good analogue for read-across for instances where data are available on it but not on BABS Na salt.
Terrestrial toxicity was examined in a variety of animal and plant species. In a short-term test, earthworms were exposed to LAS concentrations of 0, 63, 125, 250, 500, and 1000 mg/kg dw for 14 days; the 14-day LC50 was > 1000 mg/kg dw, and the NOEC was 250 mg/kg dw. In a longer-term test, adult E. albidus were placed in soil containing the test substance for 21 days; the 21-day EC10 was 6.2 mg/kg dry weight.
For arthropods, Folsomia fimetaria were exposed to various concentrations of LAS in three different soil types for 21 days. Another test was done to compare the toxicity of three LAS salts, Na, Ca, and Mg, in one soil type (sandy). There was little variation in toxicity among the three soil types and in the three salt species. The EC10 for Folsomia fimetariain various soils ranged from 85-93 mg/kg dry weight soil. In another study, H. assimilis and H. aculeifer were exposed to various concentrations of LAS for 21 days. Based on reproduction, the EC10 for H. assimilis was 100 mg/kg dry weight, and the EC10 for H. aculeifer was 82 mg/kg dry weight.
For plants, a series of studies are available on LAS. Based on well accepted principles of modeling (D.W. Roberts, Sci. Total Environ. 109/110: 557-68, 1991), linear structures are more toxic than branched structures of the same carbon chain number so LAS represents a worst-case read-across for BABS Na Salt. Studies included several plant species, e.g., sunflower, sorghum, and mung bean, and measurements such as emergence and growth. The lowest EC50 value obtained was 90 mg/kg soil dw. The lowest EC10 value was 6.2 mg/kg soil dw.
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