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EC number: 203-924-4 | CAS number: 111-96-6
- 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)
Description of key information
BIODEGRADATION IN WATER: SCREENING TESTS
The primary and inherent biodegradability were determined in the Zahn-Wellens-Test / EMPA Test with a non adapted activated sludge for the test itemDiethylenglykoldimethyletherover a period up to 36 days. The study was conducted from2010-03-08 to 2010-05-19with the definitive exposure phase oft the main test from 2010-04-13 to 2010-05-19according to OECD 302 B atDr.U.Noack-Laboratorien.
For the determination of the primary biodegradation the test item was tested at a concentration of 600 µg/L in duplicates. The primary biodegradation was determined by SPME GC/MS analysis of the test item. For the determination of the inherent biodegradation the test item was tested at a concentration of95 mg/Lin duplicates, corresponding to a DOC of51.3mg C/L in the test vessel. The inherent biodegradation of the test item was followed by determination of DOC. The ratio of eliminated DOC, corrected for the control at each time interval to the initial DOC value is expressed as the percentage biodegradation at each sampling date.
In order to check the activity of the test system diethylene glycole in a concentration of 120 mg/L was used as functional control. After 14 days a degradation rate of 100 % was reached.
The physico-chemical elimination (volatilisation) of the test item was monitored in separate sterile controls. At the test item concentration of95 mg/La sterile control without inoculum and poisoned with HgCl2was used. For determination of the primary biodegradation sterile controls (with inoculum and poisoned with HgCl2) with a test item concentration of 300 µg/L and 600 µg/L were tested. No physico-chemical elimination (volatilistion) occurred in the sterile controls until test end.
The primary degradation started after an adaptation phase of 16 days. The biodegradation was fast and on day 23 the pass level of 70 % was reached. After 28 days the primary degradation came to 95 %.
The inherent degradation started after a long lasting adaption phase of 21 days. The biodegradation was fast and the biodegradation reached the 70 % pass level after 29 days. After 36 days a biodegradation of 99 % was reached.
The
test item is classified asprimary biodegradableafter 23 days
andinherent biodegradableafter 29 days.
Table 1: Primary and Inherent Biodegradability of the Test Item Diethylenglykoldimethylether in Comparison to the Functional Control and the Sterile Control
Inherent Biodegradation / Elimination [%] |
|||||
Day |
7 |
14 |
21 |
28 |
36 |
test item |
0 |
3 |
4 |
67 |
99 |
functional control |
97 |
100 |
100 |
95 |
95 |
Sterile control* |
0 |
0 |
0 |
0 |
0 |
Primary Biodegradation / Elimination [%] |
|||||
Test item |
9 |
01) |
60 |
95 |
– |
Sterile control* |
4 |
01) |
0 |
2 |
– |
Sterile control* |
0 |
01) |
0 |
7 |
– |
Key value for chemical safety assessment
- Biodegradation in water:
- inherently biodegradable, not fulfilling specific criteria
- Type of water:
- freshwater
Additional information
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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