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EC number: 260-906-9 | CAS number: 57693-14-8
- 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
Endpoint summary
Administrative data
Description of key information
Stable to hydrolysis; not inherently biodegradable, but with a potentianl to degradate.
No potential for bioaccumulation and adsorption due to the negative logPow.
Additional information
Hydrolysis
Hydrolysis as a function of pH was determined according to OECD guideline 111.
The study was conducted with test item concentrations of 10 mg/l in buffer solutions at pH 4, 7 and 9 at a test temperature of 50 °C (preliminary test).
Samples were taken at test start (0 hours) and test end (120 hours) and analysed via HPLC with UV (DAD) detection on a cyano-propyl column using an external standard. Buffer solutions were analysed at test start and test end and indicated no interference with test item. The analytical method for determination of the test item was validated and tested with satisfactory results in regard to linearity, accuracy, precision and specificity.
Degradation was calculated as the percentage loss of test item over the time. In the preliminary test, the test item was found to be stable at pH 4, 7 and 9, respectively. No further testing was deemed necessary as less than 10 % of the applied test item was transformed after 120 hours (5 days) at a temperature of 50 °C and each of the three pH values as shown in table. Reaction rate constants and half lives could not be calculated because the test item undergoes no significant hydrolysis. A half life of > 1 year could be assumed for environmental typical temperature conditions.
Degradation [%] at 50 °C after 120 Hours
Hydrolysis Time [hours] |
Degradation [%] |
||
pH 4 |
pH 7 |
pH 9 |
|
120 |
7.92 |
8.60 |
9.80 |
Biodegradation in water: screening tests
Three studies according OECD Guideline 302 B are available. The biodegradation found in these inherent biodegradable studies were 13 % respectively 26.8 % in two static tests. One test was conducted with adapted sludge (adaption 28 days) and showed a biodegradation of 69 % in 20 days. Although the criteria for inherently biodegradability are not fulfilled the results shows that the substance has the potential to biodegrade particularly in an environment with adapted microorganisms which will be found in the STP of the dye factories.
Biodegradation in water and sediment: simulation tests
Waiving according to "column 2" in
Annex IX of REACH Regulation (EC 1907/2006): CSA does not indicate need
for further investigations; a direct and indirect exposure is unlikely.
Biodegradation in soil
Waiving according to "column 2" in
Annex IX of REACH Regulation (EC 1907/2006): CSA does not indicate need
for further investigations; a direct and indirect exposure of soil is
unlikely.
Bioaccumulation
Waiving according to "column 2" in Annex IX of REACH Regulation (EC 1907/2006): CSA does not indicate need for further investigations; the substaance has a low potential for bioaccumulation. The logKow is negative
Transport and distribution
Waiving according to "column 2" in Annex VIII of REACH Regulation (EC 1907/2006). The study need not to be conducted because based on the physicochemical properties the substance can be expected to have a low potential for adsorption (log Kow negative).
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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