Registration Dossier
Registration Dossier
Data platform availability banner - registered substances factsheets
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
Diss Factsheets
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 500-465-4 | CAS number: 160901-28-0 1 - 2.5 moles ethoxylated
- 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
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
- Endpoint:
- biodegradation in water: ready biodegradability
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 27 Oct – 24 Nov 2005
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- guideline study with acceptable restrictions
- Qualifier:
- according to guideline
- Guideline:
- ISO 14593:1999 (Water quality - Evaluation of ultimate aerobic biodegradability of organic compounds in aqueous medium - Method by analysis of inorganic carbon in sealed vessels (CO2 headspace test))
- GLP compliance:
- no
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge, domestic (adaptation not specified)
- Details on inoculum:
- - Source of inoculum/activated sludge (e.g. location, sampling depth, contamination history, procedure): Severn Trent Water Plc sewage treatment plant at Loughborough, Leicestershire, UK; secondary treatment stage
- Pretreatment: for reduction of inorganic carbon (IC) content of inoculum, the filtrate was sparged with CO2-free air for 1 hour whilst maintaining its pH at 6.5 using concentrated orthophosphoric acid. Afterwards pH was restored to its original value of 7.8 using 7 M sodium hydoxide.
- Water filtered: yes
- Type and size of filter used, if any: coarse filter paper - Duration of test (contact time):
- 28 d
- Initial conc.:
- 20 mg/L
- Based on:
- other: total carbon
- Initial conc.:
- 126.5 mg/L
- Based on:
- test mat.
- Initial conc.:
- 2.14 mg/L
- Based on:
- ThIC
- Parameter followed for biodegradation estimation:
- inorg. C analysis
- Details on study design:
- TEST CONDITIONS
- Composition of medium: standard culture medium
- Test temperature: 20 +/- 1°C
- pH: 7.8
- Aeration of dilution water: Aeration with CO2 free air
- Continuous darkness: yes
- Other: constant shaking at 150 rpm
TEST SYSTEM
- Culturing apparatus: 125 mL glass bottles, filled with 107 ml, sealed with Teflon lined silicon septa
- Number of culture flasks/concentration: 6
- Other: headspace to liquid ratio of 1:2
SAMPLING
- Sampling frequency: day 0, 14, 28
CONTROL AND BLANK SYSTEM
- Inoculum blank: yes, 6 replicates
- Reference substance: yes, 6 replicates
- Toxicity control: yes, - Reference substance:
- other: sodium benzoate
- Parameter:
- % degradation (inorg. C analysis)
- Value:
- 1
- Sampling time:
- 0 d
- Parameter:
- % degradation (inorg. C analysis)
- Value:
- 83
- Sampling time:
- 14 d
- Parameter:
- % degradation (inorg. C analysis)
- Value:
- 104
- Sampling time:
- 28 d
- Results with reference substance:
- Sodium benzoate attained 89% degradation after 28 days
- Interpretation of results:
- readily biodegradable
Reference
Table 1: Percentage Biodegradation Values
Day |
% Degradation Sodium Benzoate |
% Degradation Test Material |
||||
R1 |
R2 |
Mean |
R1 |
R2 |
Mean |
|
0 |
0 |
0 |
0 |
1 |
1 |
1 |
14 |
99 |
103 |
101 |
82 |
84 |
83 |
28 |
83 |
95 |
89 |
102 |
106 |
104 |
Table 21: Validity criteria
Criterion from the guideline |
Outcome |
Validity criterion met |
The test is considered valid if the standard material degradation rate is ≥ 60% by Day 14. |
89% |
yes |
The toxicity control should attain ≥ 25% degradation by Day 14 for the test material to be considered as non-inhibitory. |
Results not given |
|
The TIC produced from the control bottles at the end of the test should be ≤ 15% of the TOC added initially as test material. |
2% |
yes |
Description of key information
Readily biodegradable: 100% (inorg. C) in 28 days (ISO 14593)
Key value for chemical safety assessment
- Biodegradation in water:
- readily biodegradable
Additional information
The ready biodegradability of Alcohols, C9-11, branched and linear, ethoxylated, sulfates, sodium salts was investigated in a study following ISO 14593 (GLP). The biodegradation rate was estimated by inorganic C analysis. A degradation rate of 104 % after 28 days was determined.
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.