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EC number: 276-558-6 | CAS number: 72275-69-5
- 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 screening test
- Type of information:
- other: read-across from supporting substance (structural analogue or surrogate)
- Adequacy of study:
- key study
- Study period:
- August 5, 1981
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- test procedure in accordance with national standard methods with acceptable restrictions
- Reason / purpose for cross-reference:
- reference to other study
- Qualifier:
- according to guideline
- Guideline:
- other: Ciba Geigy internal method A-15
- Deviations:
- not specified
- 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.
- GLP compliance:
- no
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- not specified
- Duration of test (contact time):
- ca. 5 d
- Initial conc.:
- ca. 500 mg/L
- Based on:
- test mat.
- Parameter followed for biodegradation estimation:
- O2 consumption
- Reference substance:
- not specified
- Key result
- Remarks on result:
- not measured/tested
- Parameter:
- BOD5
- Value:
- ca. 0 mg O2/g test mat.
- Parameter:
- BOD5*100/COD
- Value:
- ca. 0 mg O2/g test mat.
- Validity criteria fulfilled:
- not specified
- Interpretation of results:
- under test conditions no biodegradation observed
- Conclusions:
- BOD5= 0 mg/g O2
- Executive summary:
The substance has been tested for screening test of BOD5 according to the internal method Ciba Geigy n° A-15. The substance shows a BOD5= 0 mg/g O2
- Endpoint:
- biodegradation in water: screening test, other
- Remarks:
- COD screening test
- Type of information:
- other: read-across from supporting substance (structural analogue or surrogate)
- Adequacy of study:
- key study
- Study period:
- August 5, 1981
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- test procedure in accordance with national standard methods with acceptable restrictions
- Reason / purpose for cross-reference:
- reference to same study
- Qualifier:
- according to guideline
- Guideline:
- other: Ciba Geigy internal method A-16
- Deviations:
- not specified
- Qualifier:
- according to guideline
- Guideline:
- other: DEV H4 method
- Deviations:
- not specified
- Principles of method if other than guideline:
- 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. 5 d
- Initial conc.:
- ca. 22 mg/L
- Based on:
- other: TOC
- Parameter followed for biodegradation estimation:
- O2 consumption
- Key result
- Remarks on result:
- not measured/tested
- Parameter:
- COD
- Value:
- ca. 675 mg O2/g test mat.
- Parameter:
- BOD5*100/COD
- Value:
- ca. 0 mg O2/g test mat.
- Validity criteria fulfilled:
- not specified
- Interpretation of results:
- under test conditions no biodegradation observed
- Conclusions:
- COD= 675 mg/g O2
- Executive summary:
The substance has been tested for screening test of COD according to the internal method Ciba Geigy AG n° A-16 and DEV H4. The substance shows a COD= 675 mg/g O2
Referenceopen allclose all
From each sample three BOD-vessels are prepared in parallel. Two vessels are incubated for 5 days in the incubator, the third one is used to measure the start-value. This vessel is immediately added with 0.5 ml MnCl2 (60 % solution) and 0.5 ml NaOH (30 % solution) and closed with a stopper without inclusion of bubbles.
Subsequently the solution is mixed gently. After sedimentation of flocculants (about 1 hour) the clear supernatant is removed and the sediment is added with:
- 0.2 ml of a 3 % NaN3 solution
- 0.5 ml of a 50 % KJ solution
- 2.0 ml phosphoric acid (density orthophosphoric acid 85 % at 20 °C: δ = 1.71)
After 5 minutes the sediment has resolved again and the produced iodine is titrated with 0.01 N Na2S2O3. At the end of the titration curve starch-solution is added as an indicator solution and the titration is continued until the solution has cleared its colour. All other samples are handled equivalently.
Calculation of the chemical oxygen demand:
[(a-b) x N x 8.0 x 1000]/v= mg/g O2
a = oxygen consumption [mL] 0.12 n (NH4)2Fe(SO4)2 x 6 H2O for blank sample(s)
b = oxygen consumption [mL] 0.12 n (NH4)2Fe(SO4)2 x 6 H2O for actual sample(s)
N = normality of the (NH4)2Fe(SO4)2 x 6 H2O solution
V = sample volume in [mL] calculated based on the number of dilution steps
Description of key information
The substance is not ready biodegradable and non readily biodegradableIt was confirmed that the substance is not inherent biodegradable and is not ready biodegradable.
Key value for chemical safety assessment
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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