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Reaction mass of Disodium [3-{[4-chloro-2-(hydroxy-kO)-5-methoxyphenyl]diazenyl-kN2}-4-(hydroxy-kO)naphthalene-2,7-disulfonato(4-)](hydroxy)chromate(2-) and Trisodium [3-{[4-chloro-2-(hydroxy-kO)-5-methoxyphenyl]diazenyl-kN2}-4-(hydroxy-kO)naphthalene-2,7-disulfonato(4-)](dihydroxy)chromate(3-)
EC number: 953-115-1 | CAS number: -
- 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: inherent biodegradability
- Remarks:
- modified Zahn-Wellens-Test
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 18 May 1994 to 22 August 1994
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 302 B (Inherent biodegradability: Zahn-Wellens/EMPA Test)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Specific details on test material used for the study:
- Code number: FAT-20044/B
Batch-Nr.: 99
Appearance: solid
Solubility: 60g/l [in water]
Storage: room temperature
Expiration date: 07/99 - Oxygen conditions:
- not specified
- Inoculum or test system:
- sewage, domestic (adaptation not specified)
- Details on inoculum:
- Sludge of a biological sewage treatment plant. Ara Reinach collected on 17.05.94
- Duration of test (contact time):
- 28 d
- Initial conc.:
- 150 mg/L
- Based on:
- DOC
- Parameter followed for biodegradation estimation:
- DOC removal
- Reference substance:
- diethylene glycol
- Parameter:
- % degradation (DOC removal)
- Value:
- 0
- Sampling time:
- 28 d
- Results with reference substance:
- The biodégradation, corrected by the blank control and measured as DOC (mg/l) is: 98.9 % 14th day (average of 2 tests running in parallel).
- Validity criteria fulfilled:
- yes
- Interpretation of results:
- not inherently biodegradable
- Conclusions:
- The biodegradation of FAT 20044/B after 28 days was 0 %.
- Executive summary:
The inherent biodegradability of FAT - 20044/B was determined in a Zahn-Wellens-Test according to the OECD Guideline for Testing of Chemicals, No. 302B, Paris 1981 and the EEC-Directive 87/302/EEC, L133 (pp. 99-105), May 1988. The test was performed in compliance with the Good Laboratory Practice (GLP) Regulations of Switzerland. FAT 20044/B and the reference substance Diethylengiycol were tested in concentrations of 150 mg/l DOC. The biodegradation of FAT 20044/B after 28 days was 0 % while that of reference substance after 14 days was 98.9 %.
- Endpoint:
- biodegradation in water: screening test, other
- Remarks:
- BOD
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 22 June 1994 to 08 August 1994
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method C.5 (Degradation: Biochemical Oxygen Demand)
- Deviations:
- yes
- Remarks:
- Aerate over night after addition of the inoculum
- GLP compliance:
- yes (incl. QA statement)
- Specific details on test material used for the study:
- Code number: FAT 20044/B
Batch-Nr.: 99
Appearance: solid
Solubility: 60g/l [in water]
Storage: room temperature
Expiration date: 07/99 - Oxygen conditions:
- aerobic
- Inoculum or test system:
- other: Seeding water of an urban wastewater
- Duration of test (contact time):
- 5 d
- Initial conc.:
- > 6 - < 800 mg/L
- Based on:
- test mat.
- Parameter followed for biodegradation estimation:
- O2 consumption
- Reference substance:
- other: Glucose/Glutamic acid
- Remarks on result:
- not measured/tested
- Parameter:
- BOD5
- Value:
- 8 mg O2/g test mat.
- Results with reference substance:
- The BOD5 of Glucose/Glutamic acid solution is 185 mg O2/I.
- Validity criteria fulfilled:
- yes
- Interpretation of results:
- other: BOD has been determined
- Conclusions:
- The BOD5 of FAT - 20044/B is 8 mg O2/g.
- Executive summary:
The biological oxygen demand (BOD) study with FAT 20044/B was carried out according to EU method C.5. Based on the study results, the BOD5 of FAT 20044/B corrected by the blank control is 8 mg O2/g while that of reference substance is 185 mg O2/l.
- Endpoint:
- biodegradation in water: screening test, other
- Remarks:
- COD
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 13 July 1994 to 17 August 1994
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method C.6 (Degradation: Chemical Oxygen Demand)
- Deviations:
- yes
- Remarks:
- Mean of 2 determinations instead of 3
- GLP compliance:
- yes (incl. QA statement)
- Specific details on test material used for the study:
- Code number: FAT 20044/B
Batch-Nr.: 99
Appearance: solid
Solubility: 60g/l [in water]
Storage: room temperature
Expiration date: 07/99 - Oxygen conditions:
- not specified
- Inoculum or test system:
- not specified
- Duration of test (contact time):
- 2 h
- Initial conc.:
- 5 mg/L
- Parameter followed for biodegradation estimation:
- not specified
- Reference substance:
- other: Potassium hydrogen phthalate solution
- Remarks on result:
- not measured/tested
- Parameter:
- COD
- Value:
- 927 mg O2/g test mat.
- Results with reference substance:
- The COD of Potassium hydrogen phthalate is 203 mg O2/I (Validity: 200 ± 8 mg 02/l)
- Validity criteria fulfilled:
- yes
- Interpretation of results:
- other: COD has determined
- Conclusions:
- The COD of FAT - 20044/B is 927 mg O2/g.
- Executive summary:
The chemical oxygen demand (COD) with FAT 20044/B was carried out according to EU method C.6. Based on the study results, COD of FAT - 20044/B is 927 mg O2/g while that of reference material Potassium hydrogen phthalate is 203 mg O2/l (Validity: 200 ± 8 mg O2/l).
Referenceopen allclose all
FAT number: 20044/B
DOC content of substance: 34.5 % (centrifugal)
Biodegradation (28 d): 0 %
Amount of substance (cone.): 435 mg/l
Sludge (cone.): 890 mg/l
Sludge from: Ara Reinach
Analytical determination: Shimadzu TOC Analyzer
Time | Date | Reference DOC (mg/l) | Blind DOC (mg/l) | Subst. 1 DOC (mg/l) | Subst. 2 DOC (mg/l) | Reference Eli. % | Subst. 1 Eli. % | Subst. 2 Eli. % |
-1 | 17.05.94 | 146.4 | - | 134.7 | 141.7 |
|
|
|
3h | 18.05.94 | 155.3 | 4.8 | 137.7 | 138.4 |
|
|
|
2.day | 20.05.94 | 147.0 | 7.3 | 140.9 | 141.7 | 7.2 | 0.0 | 0.0 |
5. day | 23.05.94 | 106.9 | 9.5 | 146.3 | 145.9 | 35.3 | 0.0 | 0.0 |
7. day | 25.05.94 | 9.8 | 8.5 | 146.2 | 146.8 | 99.1 | 0.0 | 0.0 |
8. day | 26.05.94 | 9.7 | 8.5 | - | - | 99.2 | - | - |
9. day | 27.5.94. | 9.3 | 8.0 | 145.3 | 145.2 | 99.1 | 0.0 | 0.0 |
12. day | 30.05.94 | 9.3 | 7.6 | 142.8 | 143.2 | 98.9 | 0.0 | 0.0 |
13. day | 31.05.94 | 9.2 | 7.6 | - | - | 98.9 | - | - |
14. day | 1.06.94 | 9.3 | 7.7 | 143.3 | 143.7 | 98.9 | 0.0 | 0.0 |
16. day | 3.06.94 | - | 7.0 | 143.4 | 145.1 | - | 0.0 | 0.0 |
19. day | 6.06.94 | - | 6.7 | 139.8 | 142.0 | - | 0.0 | 0.0 |
21. day | 8.06.94 | - | 6.5 | 142.1 | 144.7 | - | 0.0 | 0.0 |
23. day | 10.06.94 | - | 6.0 | 141.8 | 145.1 | - | 0.0 | 0.0 |
26. day | 13.06.94 | - | 6.4 | 141.6 | 145.4 | - | 0.0 | 0.0 |
28. day | 15.06.94 | - | 6.1 | 141.8 | 145.4 | - | 0.0 | 0.0 |
| Average 1+2: | 0.0 |
| |||||
Adsorption 1+2: | 3.5 |
|
Experimental conditions
Sample weight: 5.0 mg of the test substance
Temperature: 148 ± 3 °C
Duration: 2 h
Estimation Technique: Titration (Potentiometrie) METROHM Titroprozessor 670 (SAV : 00 111)
Calculation:
The COD of a test substance is calculated from the amount of the unreacted K2Cr2O7(Merck No. 4476), determinated byatitration with (NH4)Fe(SO4)2x 6H2O (Merck No. 3792) according to
( a - b ) x N x 8.0 x 1000 / E = mg O2/g
where
a = consumption (in ml) of 0.12 n (NH4)Fe(SO4)2x 6H2O for the blank
b = consumption (in ml) of 0.12 n (NH4)Fe(SO4)2x 6H2O for the test substance
N = Normality of (NH4)Fe(SO4)2x 6H2O
E = Stock solution (in ml) resp. weight of sample (in mg)
8 = Equivalent of oxygenDescription of key information
The test substance is non-biodegradable.
Key value for chemical safety assessment
- Biodegradation in water:
- not biodegradable
- Type of water:
- freshwater
Additional information
In a key study, the inherent biodegradability of FAT - 20044/B was determined in a Zahn-Wellens – Test according to the OECD Guideline 302B and the EEC-Directive 87/302/EEC, L133 (pp. 99-105), May 1988. The test was performed in compliance with the Good Laboratory Practice (GLP) Regulations of Switzerland. FAT 20044/B and the reference substance Diethylengiycol respectively were tested in concentrations of 150 mg/l DOC. The biodegradation of FAT 20044/B after 28 days was 0 % while that of reference substance after 14 days was 98.9 %. In another key study, biological oxygen demand (BOD) of FAT 20044/B was carried out according to EU method C.5. Based on the study results, the BOD5 of FAT 20044/B corrected by the blank control is 8 mg O2/g while the chemical oxygen demand (COD) with FAT 20044/B is 927 mg O2/g. The ration of BOD/COD is <0.5 so FAT 20044/B is not considered as readily biodegradable.
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