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EC number: 263-052-5 | CAS number: 61789-32-0
- 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

Additional information on environmental fate and behaviour
Administrative data
- Endpoint:
- additional information on environmental fate and behaviour
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Study period:
- 2008-12-02 to 2009-01-27
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: Study conducted according to GLP and following ISO 11734 (1995) testing guideline.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 009
- Report date:
- 2009
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- other: ISO 11734 (1995)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of study / information:
- Information on the biodegradation of SLI(76) stripped in digested sludge
Test material
- Reference substance name:
- Fatty acids, C12-18 and C18-unsatd., 2-sulfoethyl esters, sodium salts
- EC Number:
- 287-024-7
- EC Name:
- Fatty acids, C12-18 and C18-unsatd., 2-sulfoethyl esters, sodium salts
- Cas Number:
- 85408-62-4
- IUPAC Name:
- 85408-62-4
- Reference substance name:
- SLI (76) Stripped
- IUPAC Name:
- SLI (76) Stripped
- Details on test material:
- Name of test material as cited in test report: SLI (76) Stripped.
Constituent 1
Constituent 2
Results and discussion
Any other information on results incl. tables
The study was terminated after 56 days. The TIC measured in the liquid phase of two of the control bottles was below the calibration range, so these results were omitted from the calculations. Percentage biodegradability data are given in Table 2. The mean final level of biodegradation achieved by the reference substance, PEG-400, was 80%, indicating that the sludge contained viable organisms. The mean final level of biodegradation achieved by SLI(76) Stripped was 67% in the 100 mg C/L bottles and 75% in the 50 mg C/L test bottles. There was some variation in gas production between replicates during the study, but, in most cases, there was Iittle difference between the final biodegradation results, as the bottles where higher gas pressures were measured tended to have lower TIC measurements. The exceptions to this were the SLI(76) Stripped at 50 mg C/L, where there was a large difference between the calculated percentage biodegradation in the three replicates, but this may be partly due to increased errors in the calculated values at the lower test concentration. The organic carbon of the PEG 400 stock solution measured on day 0 of the study was 4910 mg C/L, and of the SLI(76) Stripped stock solution was 4750 mg C/L. These values are within 5% of the nominal value of 5000 mg C/L. The Redox indicator (Resazurin) showed pink coloration in only two of the control bottles after day 7, and this had disappeared by day 13, so it is considered that anaerobic conditions were maintained throughout the study. All the measured pHs at the start of the study were between 7.0 and 7.1, and on day 56 were in the range 6.4 to 6.7.
Table 2: Mean biodegradability
Sample description |
Bottle No |
dP (bar) |
Carbon (mg) |
Biodegradation (%) |
|||
Headspace |
Inorganic in liquid phase |
Total |
- |
Mean |
|||
Control |
2 |
0.139 |
3.91 |
1.76 |
5.67 |
- |
- |
3 |
0.104 |
2.92 |
2.24 |
5.16 |
- |
- |
|
4 |
0.242 |
6.80 |
<1.0 |
<7.8 |
- |
- |
|
16 |
0.149 |
4.19 |
1.94 |
6.13 |
- |
- |
|
17 |
0.118 |
3.32 |
2.43 |
5.75 |
- |
- |
|
18 |
0.224 |
6.30 |
<1.0 |
<6.3 |
- |
- |
|
PEG 400 (100 mg C/L) |
6 |
0.337 |
9.48 |
3.90 |
13.4 |
77 |
80 |
7 |
0.338 |
9.50 |
4.13 |
13.6 |
79 |
||
8 |
0.418 |
11.8 |
2.26 |
14.1 |
84 |
||
SLI(76) stripped (100 mg C/L) |
10 |
0.379 |
10.7 |
1.30 |
12.0 |
63 |
67 |
11 |
0.333 |
9.36 |
3.39 |
12.8 |
71 |
||
12 |
0.397 |
11.2 |
1.09 |
12.3 |
66 |
||
SLI(76) stripped (50 mg C/L) |
13 |
0.192 |
5.40 |
2.73 |
8.13 |
49 |
75 |
14 |
0.352 |
9.90 |
1.20 |
11.1 |
108 |
||
15 |
0.231 |
6.50 |
2.52 |
9.02 |
67 |
dP Cumulative gas pressure readings
Applicant's summary and conclusion
- Conclusions:
- SLI(76) Stripped showed extensive biodegradation during the study reaching 67% by day 56 in the 100 mg C/L bottles, and 75% biodegradation in the 50 mg C/L bottles. The reference substance, PEG 400, also showed extensive biodegradation during the study, reaching 80% by day 56, showing the inoculum was behaving normally.
- Executive summary:
The anaerobic biodegradability of SLI(76) stripped was determined according to GLP and ISO 11734 (1995) guideline. SLI(76) Stripped showed extensive biodegradation during the studyreaching 67% by day 56 in the 100 mg C/L bottles, and 75% biodegradation in the 50 mg C/L bottles. The reference substance, PEG 400, also showed extensive biodegradation during the study, reaching 80% by day 56, showing the inoculum was behaving normally.
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