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EC number: 281-650-4 | CAS number: 84000-94-2
- 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: screening test, other
- Remarks:
- BOD5/COD
- Type of information:
- other: read-across from supporting substance (structural analogue or surrogate)
- Adequacy of study:
- weight of evidence
- Reliability:
- 4 (not assignable)
- Rationale for reliability incl. deficiencies:
- abstract
- Remarks:
- The test was conducted on a similar substance, the complete justification for the Read Across approach is reported at section 13. The original Reliability of the test is 4
- Qualifier:
- according to guideline
- Guideline:
- other: CIBA GEIGY AG internal method 15
- Qualifier:
- according to guideline
- Guideline:
- other: CIBA GEIGY AG internal method 16
- Principles of method if other than guideline:
- The biological oxygen demand BOD is the amount of oxygen needed to degrade organic substances present in waste water with the help of bacteria (and other microorganisms present in sludge). The expression BOD5 represents the oxygen consumption within 5 days of incubation at 20 °C. Various dilutions of a substance solution in oxygen saturated water will be measured for its oxygen content before and after such an incubation period.
Within this procedure chemical oxygen demand (COD) is defined as the equivalent amount of oxygen in terms of amount of potassium dichromate that is consumed by reacting with the oxidizable components of 1 g of sample material dissolved in 1 liter water under the given reaction conditions. - GLP compliance:
- no
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- not specified
- Duration of test (contact time):
- ca. 21 d
- Initial conc.:
- ca. 500 mg/L
- Based on:
- test mat.
- Initial conc.:
- ca. 5 mg/L
- Based on:
- test mat.
- Parameter followed for biodegradation estimation:
- O2 consumption
- Remarks on result:
- not determinable
- Parameter:
- BOD5
- Value:
- ca. 0 mg O2/g test mat.
- Parameter:
- COD
- Value:
- ca. 1 011 mg O2/g test mat.
- Key result
- Parameter:
- BOD5*100/COD
- Value:
- ca. 0 other: %
- Interpretation of results:
- not readily biodegradable
- Conclusions:
- BOD5 = 0 mg/g O2
COD = 1011 mg/g O2
BOD5/COD = 0 - Executive summary:
The substance has been tested for biodegradation according to the CIBA GEIGY AG internal method 15, 16 that are similar to OECD 301C and EEC EU C.6.
The substance shows the following results:
BOD5 = 0 mg/g O2
COD = 1011 mg/g O2
BOD5/COD = 0
- Endpoint:
- biodegradation in water: screening test, other
- Remarks:
- BOD5/COD
- Type of information:
- other: read-across from supporting substance (structural analogue or surrogate)
- Adequacy of study:
- weight of evidence
- Reliability:
- 4 (not assignable)
- Rationale for reliability incl. deficiencies:
- abstract
- Remarks:
- The test was conducted on a similar substance, the complete justification for the Read Across approach is reported at section 13. The original Reliability of the test is 4
- Qualifier:
- according to guideline
- Guideline:
- other: CIBA GEIGY AG internal method A-15
- Qualifier:
- according to guideline
- Guideline:
- other: CIBA GEIGY AG internal method A-16
- Principles of method if other than guideline:
- internal method A-15, A-16
- GLP compliance:
- no
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- not specified
- Duration of test (contact time):
- ca. 5 d
- Initial conc.:
- ca. 50 mg/L
- Based on:
- test mat.
- Initial conc.:
- ca. 10 mg/L
- Based on:
- test mat.
- Parameter followed for biodegradation estimation:
- O2 consumption
- Remarks on result:
- not determinable
- Parameter:
- BOD5
- Value:
- ca. 80 mg O2/g test mat.
- Parameter:
- COD
- Value:
- ca. 1 150.56 mg O2/g test mat.
- Key result
- Parameter:
- BOD5*100/COD
- Value:
- ca. 6.95
- Remarks on result:
- other: BOD5/COD = 0.06
- Validity criteria fulfilled:
- not specified
- Interpretation of results:
- not readily biodegradable
- Conclusions:
- BOD5 = 80 mg/g O2
COD = 1270.1 mg/g O2
BOD5/COD = 0.0695 - Executive summary:
The substance has been tested for biodegradation according to the internal method A-15, A-16 that are similar to German guidelinelines DEV-H4 and DEV-H5.
BOD5 = 80 mg/g O2
COD = 1270.1 mg/g O2
BOD5/COD = 0.0695
- Endpoint:
- biodegradation in water: inherent biodegradability
- Type of information:
- other: read-across from supporting substance (structural analogue or surrogate)
- Adequacy of study:
- weight of evidence
- Reliability:
- 4 (not assignable)
- Rationale for reliability incl. deficiencies:
- abstract
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- OECD Guideline 302 B (Inherent biodegradability: Zahn-Wellens/EMPA Test)
- Deviations:
- not specified
- Principles of method if other than guideline:
- internal method A-37
- GLP compliance:
- no
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge, domestic (adaptation not specified)
- Details on inoculum:
- - Source of inoculum/activated sludge: Activated sludge should be taken from a municipal waste water treatment plant which has been rinsed with
municipal water for 2 times.
- Concentration of sludge: The activated sludge is prepared one day before the start of the experiment, ventilated overnight and adjusted to a concentration of 600 mg/L. - Duration of test (contact time):
- ca. 31 d
- Initial conc.:
- ca. 50 mg/L
- Based on:
- DOC
- Parameter followed for biodegradation estimation:
- O2 consumption
- Reference substance:
- diethylene glycol
- Parameter:
- % degradation (O2 consumption)
- Value:
- ca. 5
- Sampling time:
- 28 d
- Interpretation of results:
- not readily biodegradable
- Conclusions:
- The substance shows a biodegradation of 5%, therefore is not inherently biodegradable.
- Executive summary:
The substance has been tested for inherently biodegradation according to the method OECD 302B. After a test period of 31 days the substance shows a degradation of 5%, therefore is not inherent biodegradable.
Referenceopen allclose all
Biochemical Oxygen Demand or BOD is the amount of dissolved oxygen needed by aerobic biological organisms in a body of water to break down organic material present in a given water sample at certain temperature over a specific time period. The term also refers to a chemical procedure for determining this amount. This is not a precise quantitative test, although it is widely used as an indication of the organic quality of water, therefore is not be used as quantitative date about ready biodegradation.
Biochemical Oxygen Demand or BOD is the amount of dissolved oxygen needed by aerobic biological organisms in a body of water to break down organic material present in a given water sample at certain temperature over a specific time period. The term also refers to a chemical procedure for determining this amount. This is not a precise quantitative test, although it is widely used as an indication of the organic quality of water, therefore is not be used as quantitative date about ready biodegradation.
Description of key information
expected non-readily biodegradable
Key value for chemical safety assessment
Additional information
No data are available on the substance in itself therefore, in order to assess the biodegradation potential of the target substance, the Read Across approach was selected.
Two rapidly biodegradation test (BOD5/COD) and one inherently biodegradation test conducted on the Similar Substance 1 are available.
The first screening study [Huntsman Textile Effects (Germany) GmbH, 1976] was performed according to an internal procedure, which are similar to internationally accepted guideline. The concentration of Similar substance 1 was 94 % and the substance shows a BOD5 = 0 and a COD = 1011 mg/g O2.
Also the second screening study of ready biodegradability [Huntsman Textile Effects (Germany) GmbH, 1978], was performed following the Ciba Geigy AG internal methods. In this case, the concentration of Similar substance 1 was 92 % and the BOD5 and COD resulted to be 80 and 1151 mg/g O2, respectively.
According to the indications provided in the ECHA guidance r7b, despite the information on the 5 -day biochemical oxygen demand (BOD5) cannot be used for classification purposes, it can be considered as an indication of non-readily biodegradation potential.
Based on the screening tests results, it can expected that the substance would not degradate in short period.
This expectation is confirmed by the study of inherent biodegradation conducted according the guideline OECD 302B [Huntsman Textile Effects GmbH, 1987]: after 28 days of test period, no biodegradation was recorded.
The complete Read Across Justification has been attached at section 13.
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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