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EC number: 939-479-4 | CAS number: 1471311-60-0
- 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
Short-term toxicity to aquatic invertebrates
Administrative data
- Endpoint:
- short-term toxicity to aquatic invertebrates
- Type of information:
- migrated information: read-across from supporting substance (structural analogue or surrogate)
- Adequacy of study:
- supporting study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Well documented peer-reviewed publication.
Data source
Reference
- Reference Type:
- publication
- Title:
- Reduction of aquatic toxicity of linear alkylbenzene sulfonate (LAS) by biodegradation
- Author:
- Kimerle, R.A. and Swisher, R.D.
- Year:
- 1 977
- Bibliographic source:
- Water Research 11:31-37
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- other: EPA-660/3-75-009 1975. Method for acute toxicity tests with fish, macroinvertebrates and amphibians.with fish, macroinvertebrates and amphibians.
- Principles of method if other than guideline:
- Acute toxicity tests were conducted on high molecular weight LAS, individual pure homologues, non-linear LAS components (dialkyl tetralin or indane sulfonates (DTIS), and model biodegradation intermediates (sulfophenyl undecane, SØU) in order to determine whether biodegradation decreases toxicity. In 250 mL beakers with 200 mL of well water of approximately 250 mg/L hardness, ten Daphnia, less than 18 hours old, were placed in each of the three beakers. No food was added for the duration of the test.
- GLP compliance:
- no
Test material
- Reference substance name:
- Benzenesulfonic acid, C10-13-alkyl derivs., sodium salts
- EC Number:
- 270-115-0
- EC Name:
- Benzenesulfonic acid, C10-13-alkyl derivs., sodium salts
- Cas Number:
- 68411-30-3
- Molecular formula:
- Not available - not a single isomer - see remarks
- IUPAC Name:
- Benzenesulfonic acid, C10-13-alkyl derivs., sodium salts
- Details on test material:
- 1) High molecular weight LAS: Average chain length = 13.3; C11 1%, C12 8%, C13 52%, C14 39%
2) Individual LAS homologues of C10, C11, C12, C13, and C14
3) Nonlinear LAS components (DTIS)
4) Model biodegradation intermediates
Constituent 1
Sampling and analysis
- Analytical monitoring:
- yes
Test solutions
- Vehicle:
- no
- Details on test solutions:
- In 250 mL beakers with 200 mL of well water of approximately 250 mg/L hardness, ten Daphnia, less than 18 hours old, were placed in each of the three replicate beakers per concentration. Five concentrations were tested.
Test organisms
- Test organisms (species):
- Daphnia magna
- Details on test organisms:
- Crustacea
Study design
- Test type:
- static
- Water media type:
- freshwater
- Limit test:
- no
- Total exposure duration:
- 48 h
- Post exposure observation period:
- open system
Test conditions
- Hardness:
- 250 mg/L
- Test temperature:
- not reported
- pH:
- not reported
- Dissolved oxygen:
- not reported
- Reference substance (positive control):
- not required
Results and discussion
Any other information on results incl. tables
Daphnia magna |
|||
Average chain length |
24 hour |
48 hour |
|
High molecular weight LAS |
13.3 |
2.6 ± 0.1 |
2.3 ± 0.1 |
Individual homologues LAS |
|||
C10 |
10 |
53.1 ± 0.4 |
12.3 ± 2.6 |
C11 |
11 |
15.8 ± 3.0 |
5.7 ± 0.6 |
C12 |
12 |
10.7 ± 1.6 |
3.5 ± 1.0 |
C13 |
13 |
2.7 ± 0.4 |
2.0 ± 0.3 |
C14 |
14 |
1.2 ± 0.2 |
0.7 ± 0.2 |
Nonlinear LAS components (DTIS) |
|||
C10 |
10 |
106.0 ± 27.0 |
98.0 ± 21.3 |
C12 |
12 |
55.1 ± 9.1 |
34.1 ± 5.1 |
C14 |
14 |
12.4 ± 1.4 |
10.0 ± 1.0 |
Model biodegradation intermediates |
|||
C4 (SØ Butyrate) |
4 |
~12,000 |
~6,000 |
C5 (SØ Valerate) |
5 |
~12,000 |
~5,000 |
C11 (SØU) |
11 |
355 ± 150* |
208 ± 85* |
*Subsequent repurification of this sample yielded a product with the same isomeric composition but with LC50 values over 1000 mg/L for daphnids (Swisher et al., 1976).
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
- Conclusions:
- Partial biodegradation of LAS is shown to significantly reduce the specific toxicity of the remaining LAS to Daphnia magna.
- Executive summary:
The toxicity of high molecular weight LAS, individual LAS homologues, and nonlinear LAS components (DTIS) was measured in a series of aquatic toxicity tests with Daphnia magna. Results show that biodegradation of LAS influences the toxicity, with the remaining LAS becoming less toxic. The 48 -hour LC50 of high molecular weight LAS to Daphnia magna is 2.4 mg/L.
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