Registration Dossier
Registration Dossier
Data platform availability banner - registered substances factsheets
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
Diss Factsheets
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: - | 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
Hydrolysis
Some information in this page has been claimed confidential.
Administrative data
- Endpoint:
- hydrolysis
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 24 November 2011 to 25 June 2012
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: GLP study conducted in accordance with OECD and EU Guidelines
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 012
- Report date:
- 2012
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 111 (Hydrolysis as a Function of pH)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method C.7 (Degradation: Abiotic Degradation: Hydrolysis as a Function of pH)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
Test material
- Details on test material:
- Name: Reactive Blue F08-0170
Constituent 1
- Specific details on test material used for the study:
- Details on properties of test surrogate or analogue material (migrated information):
Not applicable - Radiolabelling:
- no
Study design
- Analytical monitoring:
- yes
- Details on sampling:
- Immediately after preparation of the test solutions and after defined time intervals, samples were taken and analyzed by HPLC.
- Buffers:
- Buffer pH 4: C6H8O7 / NaOH / NaCl, Fluka, Art.-No.: 33643
Buffer pH 7: KH2PO4 / Na2HPO4, Fluka, Art.-No.: 33646
Buffer pH 9: Na2B4O7 / hydrochloric acid, Fluka, Art.-No.: 33648 - Estimation method (if used):
- None
- Details on test conditions:
- pH determination
Description of the method: The determination was done with a pH-meter with single-rod glass electrode after previous calibration.
Sterility test
Description of the method: A plate count tests according to Ph.Eur.6 was performed at the end of the tests.
Hydrolysis at pH = 4
Hydrolysis at 50°C
Preparation of the test solution
0.1054 g of the test item were weighed into a 200 ml volumetric flask and dissolved and diluted to volume with buffer pH 4. This represents a concentration of 0.527 g/L test item (0.0629 g/L VSE/VSE). The stock solution was ultra sonicated for 5 minutes. About 10 ml each were pipetted into 20 ml chromatographic vials. Nitrogen was overlayed over the solution for about 10 seconds to remove the oxygen. The vials were closed and stored at 50°C in a closed dark shaking heat regulator to avoid any photolytic effect. For every test point a new vial was used.
No deviations of the adjusted temperature (50°C ± 0.5°C) were observed.
The pH value was measured at each sampling interval being in the range of 4.00 to 4.08.
At pH 4 only 7 components were monitored. The components VS/VSOH and VSOH/VS were too small and partially interfered with other components. Therefore, these 2 components were not analysed for.
Hydrolysis at pH = 7
Hydrolysis at 50°C (tier 1)
Preparation of the test solution
0.1256 g of the test item were weighed into a 250 ml volumetric flask and dissolved and diluted to volume with buffer pH 7. This represents a concentration of test item of 0.5024 g/L (VSE/VSE: 0.0599 g/L). Nitrogen was passed through the solution for 5 min to remove the oxygen. The solution was stirred for 1 h at room temperature, filtered and 10 ml each were pipetted into 20 ml chromatographic vials. The vials were closed and stored at 50°C in a closed dark shaking heat regulator to avoid any photolytic effect. For every test point a new vial was used.
No deviations of the adjusted temperature (50°C ± 0.5°C) were observed.
The pH value was measured at all sampling times to be in the range of 6.98 – 7.03
Hydrolysis at 20°C (tier 2)
Preparation of the test solution
0.1356 g of the test item were weighed into a 250 ml volumetric flask and dissolved and diluted to volume with buffer pH 7. The solution has a concentration of 0.5424 g/L referring to test item (VSE/VSE: 0.0647 g/L). Nitrogen was passed through the solution for 5 min to remove the oxygen. The solution was stirred for 1 h at room temperature, filtered and 10 ml each were pipetted into 20 ml chromatographic vials. The vials were closed and stored at 20°C in a closed dark shaking heat regulator to avoid any photolytic effect. For every test point a new vial was used.
No deviations of the adjusted temperature (20°C ± 0.5°C) were observed.
Hydrolysis at pH = 9
13.1 Hydrolysis at 50°C (tier 1)
13.1.1 Preparation of the test solution
0.0587 g of the test item were weighed into a 250 ml volumetric flask and dissolved and diluted to volume with buffer pH 9 resulting in a concentration of 0.2348 g/L test item (VSE/VSE: 0.028 g/L) . Nitrogen was passed through the solution for 5 min to remove the oxygen. The solution was stirred for 1 h at room temperature, filtered and 10 ml each were pipetted into 20 ml chromatographic vials. The vials were closed and stored at 50°C in a closed dark shaking heat regulator to avoid any photolytic effect. For every test point a new vial was used.
No deviations of the adjusted temperature (50°C ± 0.5°C) were observed.
The pH value was measured at all sampling times to be in the range of 8.98 – 9.08.
Hydrolysis at 20°C (tier 2)
13.2.1 Preparation of the test solution
0.1405 g of the test item were weighed into a 250 ml volumetric flask and dissolved and diluted to volume with buffer pH 9 resulting in a concentration of test item of 0.562 g/L (VSE/VSE: 0.067 g/L). Nitrogen was passed through the solution for 5 min to remove the oxygen. The solution was stirred for 1 h at room temperature, filtered and 10 ml each were pipetted into 20 ml chromatographic vials. The vials were closed and stored at 20°C in a closed dark shaking heat regulator to avoid any photolytic effect. For every test point a new vial was used.
No deviations of the adjusted temperature (20°C ± 0.5°C) were observed.
The pH value was measured at all sampling times to be in the range of 8.99 – 9.04
The pH value was measured at all sampling times to be in the range of 7.00 – 7.06
Duration of testopen allclose all
- Duration:
- 5 d
- pH:
- 4
- Initial conc. measured:
- 0.213 other: g/L, initial concentration for sum of 7 components, see results for initial concentrations of individual components
- Duration:
- 5 d
- pH:
- 7
- Initial conc. measured:
- 0.262 other: g/L, initial concentration for sum of 9 components, see results for initial concentrations of individual components
- Duration:
- 29.8 d
- pH:
- 7
- Initial conc. measured:
- 0.268 other: g/L, initial concentration for sum of 9 components, see results for initial concentrations of individual components
- Duration:
- 6.2 d
- pH:
- 9
- Initial conc. measured:
- 0.116 other: g/L, initial concentration for sum of 9 components, see results for initial concentrations of individual components
- Duration:
- 30 d
- pH:
- 9
- Initial conc. measured:
- 0.192 other: g/L, initial concentration for sum of 9 components, see results for initial concentrations of individual components
- Number of replicates:
- For every test point a new vial was used.
- Positive controls:
- no
- Negative controls:
- no
- Statistical methods:
- The logarithms of the concentrations are plotted against time and the slope of the resulting straight line (assuming first-order or pseudo-first order behavior) gives the rate constant from the formula.
kobs = - slope x 2.303 (if log10 is used).
When the rate constants are known for two or more temperatures, the rate constants at other temperatures can be calculated using the Arrhenius equation:
Results and discussion
- Preliminary study:
- In the course of the preliminary test different rates of decomposition of Reactive Blue F08-0170 were observed after 5 days at a temperature of 50°C at pH 4, 7 and 9. See study endpoint Hydrolysis.002 for details.
- Test performance:
- The recovery and the repeatability were checked during the hydrolysis study by analyzing a solution of the test item in water on every day of application (system suitability test). At pH 7 (50°C) no control of recovery was performed but the other data show that the method is working properly. The recovery is between 90% und 110% and meet the requirements of OECD 111.
With a satisfying mean recovery of 100.1% the recovery of the determination is demonstrated. The relative standard deviation of 2.4% is satisfying taking the instability of the test item and the length of the test period of approx. 3 month into account.
Chromatograms show that the method is sensitive enough to determine hydrolysis rates of greater than 90%. - Transformation products:
- yes
Identity of transformation productsopen allclose all
- Details on hydrolysis and appearance of transformation product(s):
- Whereas the components of the test item remained stable at pH 4 (50°C), degradation and formation of components was observed at pH 7 and 9. Generally, the products formed at pH 7 and pH 9 are the same ones. The reaction kinetics is slightly different as at pH 9 the degradation is quicker and more progressed than at pH 7.
Consequently, the primary reactions for hydrolysis are understood as elimination of the sulphate groups yielding the respective vinylsulfones. In a second step, the vinylsulfon moieties are hydrolysed by addition of water forming the respective alcohol as described in the scheme attached below under background material.
The Cu-free components or hydrolysis products behave in the same way as the Cu-containing ones. Elimination of Cu from the complexes has not been observed.
Total recovery of test substance (in %)
- % Recovery:
- ca. 70
- pH:
- 9
- Temp.:
- 20 °C
- Duration:
- 30 d
Dissipation DT50 of parent compoundopen allclose all
- pH:
- 7
- Temp.:
- 20 °C
- Type:
- other: The data show that the total substance (sum of 9 components) is rather stable but a small decay might be suspected.
- Remarks on result:
- other: However, for the calculation and extrapolation of an exact half-life time t/1/2 at 20°C, the data are not robust enough due to scattering.
- pH:
- 7
- Temp.:
- 20 °C
- Hydrolysis rate constant:
- 0 s-1
- DT50:
- 212 h
- Type:
- (pseudo-)first order (= half-life)
- Remarks on result:
- other: For component #1 (VSE/VSE)
- pH:
- 7
- Temp.:
- 20 °C
- Hydrolysis rate constant:
- 0 s-1
- DT50:
- 870 h
- Type:
- (pseudo-)first order (= half-life)
- Remarks on result:
- other: For component #2 (VSOH/VSE)
- pH:
- 7
- Temp.:
- 20 °C
- Hydrolysis rate constant:
- 0 s-1
- DT50:
- 84 h
- Type:
- (pseudo-)first order (= half-life)
- Remarks on result:
- other: For component #7 (VSE/VSE-Cu-free)
- pH:
- 9
- Temp.:
- 20 °C
- DT50:
- 2 mo
- Type:
- other: Estimations performed using the highest and the lowest concentration show a decline of about 30% within 30 days.
- Remarks on result:
- other: Using these data, an estimated half-life was derived.
- pH:
- 9
- Temp.:
- 20 °C
- Hydrolysis rate constant:
- 0 s-1
- DT50:
- 3.6 h
- Type:
- (pseudo-)first order (= half-life)
- Remarks on result:
- other: For component #1 (VSE/VSE)
- pH:
- 9
- Temp.:
- 20 °C
- Hydrolysis rate constant:
- 0 s-1
- DT50:
- 14 h
- Type:
- (pseudo-)first order (= half-life)
- Remarks on result:
- other: For component #2 (VSOH/VSE)
- pH:
- 9
- Temp.:
- 20 °C
- Hydrolysis rate constant:
- 0 s-1
- DT50:
- 2.6 h
- Type:
- (pseudo-)first order (= half-life)
- Remarks on result:
- other: For component #7 (VSE/VSE-Cu-free)
- pH:
- 9
- Temp.:
- 20 °C
- Hydrolysis rate constant:
- 0.001 s-1
- DT50:
- 0.3 h
- Type:
- other: Only 2 data
- Remarks on result:
- other: For component #8 (VS/VSE-Cu-free)
- Other kinetic parameters:
- None
- Details on results:
- - pH, sterility, temperature, and other experimental conditions maintained throughout the study: Yes
See pdfs attached under background material for details of results.
Any other information on results incl. tables
For those components which show a first order kinetics, the following hydrolysis rate constants and half-life times at 25°C were calculated from the experimental data using the Arrhenius function.
Half-life time and hydrolysis rate constant at pH = 4
The test item is found to be stable at pH 4 and 50°C. Therefore it can be assumed that the test item is also stable at 25°C and no half-life time and hydrolysis rate were calculated.
Half-life time and hydrolysis rate constant at pH = 7
Half-life times and hydrolysis rate constants for individual components:
At 50 degrees C and pH 7:
Component |
Half-life t(1/2) (h) |
Rate constant k [s-1] |
Remarks kinetics |
VSE/VSE |
3.0 |
6.39359E-05 |
1st order |
VSOH/VSE |
28 |
6.83942E-06 |
1st order |
VS/VSE |
-* |
-* |
Higher order |
VS/VS |
-* |
-* |
Higher order |
VSOH/VS |
-* |
-* |
Higher order |
VS/VSOH |
-* |
-* |
Higher order |
VSE/VSE Cu-free |
5.8 |
3.31263E-05 |
1st order |
VS/VS Cu-free |
-* |
-* |
Higher order |
VS/VSE Cu-free |
-* |
-* |
Higher order |
* Determination of half-life and rate constant not possible
At 20 degrees C and pH 7:
Component |
Half-life (1/2) (h) |
Rate constant k [s-1] |
Remarks kinetics |
VSE/VSE |
212 |
9.08760E-07 |
1st order |
VSOH/VSE |
870 |
2.21286E-07 |
1st order |
VS/VSE |
-* |
-* |
Higher order |
VS/VS |
-* |
-* |
Higher order |
VSOH/VS |
-* |
-* |
Higher order |
VS/VSOH |
-* |
-* |
Higher order |
VSE/VSE-Cu-free |
84 |
2.28893E-06 |
1st order |
VS/VS Cu-free |
-* |
-* |
Higher order |
VS/VSE-Cu-free |
-* |
-* |
Higher order |
* Determination of half-life and rate constant not possible
Overall half-life time and hydrolysis rate constant for the test item at pH 7 and at 20 degrees C:
The hydrolysis behaviour of the 9 components originating from the test item is described above. The data show that the total substance (sum of 9 components) is rather stable but a small decay might be suspected. However, for the calculation and extrapolation of an exact half-life time t/1/2 at 20°C, the data are not robust enough due to scattering.
Half-life time and hydrolysis rate constant at pH = 9
At 50 degrees C and pH 9:
NLP-Fraction |
Half-life |
Rate constant |
Remarks |
|
t(1/2) (h) |
k [s-1] |
kinetics |
VSE/VSE |
0.1 |
1.54598E-03 |
Only 2 data |
VSOH/VSE |
0.4 |
5.02847E-04 |
Only 3 data |
VS/VSE |
0.5 |
3.93247E-04 |
1st order |
VS/VS |
-* |
-* |
Higher order |
VSOH/VS |
-* |
-* |
Higher order |
VS/VSOH |
-* |
-* |
Higher order |
VSE/VSE-Cu-free |
-* |
-* |
Higher order |
VS/VS Cu-free |
-* |
-* |
Higher order |
VS/VSE-Cu-free |
-* |
-* |
Higher order |
* Determination of half-life and rate constant not possible
At 20 degrees C and pH 9:
NLP-Fraction |
Half-life |
Rate constant |
Remarks |
|
(1/2) (h) |
k [s-1] |
kinetics |
VSE/VSE |
3.6 |
5.36338E-05 |
1st order |
VSOH/VSE |
14 |
1.37662E-05 |
1st order |
VS/VSE |
-* |
-* |
Higher order |
VS/VS |
-* |
-* |
Higher order |
VSOH/VS |
-* |
-* |
Higher order |
VS/VSOH |
-* |
-* |
Higher order |
VSE/VSE-Cu-free |
2.6 |
7.34426E-05 |
1st order |
VS/VS Cu-free |
-* |
-* |
Higher order |
VS/VSE-Cu-free |
0.3 |
6.32529E-04 |
Only 2 data |
* Determination of half-life and rate constant not possible
Overall half-life time and hydrolysis rate constant
The area-% values of the half-life time and hydrolysis rate constant for the test item at pH = 9 and 20°C do not follow a 1st order kinetics and thus an exact half-life could not be calculated. Estimations performed using the highest and the lowest concentration show a decline of about 30% within 30 days. Using these data, an estimated half-life was derived.
Half-life time (t/1/2): about 2 months (estimated)
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
- Conclusions:
- The stability of the test item is found to decrease with increasing pH-value.
Hydrolysis at pH 4:
The test item is found to be stable at pH 4 and 50°C. Therefore it can be assumed that the test item is also stable at 20°C and no half-life time and hydrolysis rate were calculated.
Hydrolysis at pH 7 and 9
Whereas the components of the test item remained stable at pH 4 (50°C), degradation and formation of components was observed at pH 7 and 9. Generally, the products formed at pH 7 and pH 9 are the same ones. The reaction kinetics is slightly different as at pH 9 the degradation is quicker and more progressed than at pH 7. - Executive summary:
For Reactive Blue F08-0170 the hydrolysis behavior was investigated at pH = 4, 7 and 9 using a combined HPLC/MS/UV method for analysis. Quantitation of the educts and hydrolysis products was performed using the HPLC/UV method. HPLC/MS was used to elucidate and to confirm the structure of the components over the whole hydrolysis period.
Reactive Blue F08-0170 is a complex mixture of components with different molecular weight. In total nine components could be identified and their behaviour was monitored. These 9 components represent about 75% of the organic part of the substance (HPLC peak area) at time 0.
VSE/VSE 19.55 %
VSOH/VSE 11.34 %
VS/VSE 27.48 %
VS/VS 4.40 %
VS/VSOH 2.66 %
VSOH/VS 1.36 %
VSE/VSE Cu-free (DYEJ 6302) 3.23 %
VS/VSE Cu free (DYEJ 6621) 3.91 %
VS/VS Cu-free (DYEJ 6630) 1.52 %
Identity of components and hydrolysis products was ascertained using structural information from the sponsor, by comparison with enriched fractions of individual components and by monitoring of LC/MS-ESI-spectra.
The stability of the test item is found to decrease with increasing pH-value.
Hydrolysis at pH 4:
The test item is found to be stable at pH 4 and 50°C. Therefore it can be assumed that the test item is also stable at 20°C and no half-life time and hydrolysis rate were calculated.
Hydrolysis at pH 7 and 9
Whereas the components of the test item remained stable at pH 4 (50°C), degradation and formation of components was observed at pH 7 and 9. Generally, the products formed at pH 7 and pH 9 are the same ones. The reaction kinetics is slightly different as at pH 9 the degradation is quicker and more progressed than at pH 7.
Behaviour of components during hydrolysis at pH 7 and 9. (In brackets, the half-life at 20°C is given where scientifically justified):
pH 7
pH9
Decreasing
Increasing
and decreasing
Increasing
Decreasing
Increasing
and decreasing
Increasing
VSE/VSE
VS/VSE
VS/VS
VSE/VSE
VS/VS
(t1/2=204h)
(t1/2=3,6h)
VSE/VSE Cu-
VS/VSE Cu-
VS/VS Cu-
VSE/VSE
VS/VS
free
free
free
Cu-free
Cu-free
(t1/2=123h)
(t1/2=2,6h)
VSOH/VSE
VS/VSOH
VSOH/VSE
VS/VSE
(t1/2=815h)
(t1/2=14h)
VSOH/VS
VS/VSE Cu-
free (t1/2=0,3h)
VS/VSOH
VSOH/VS
Sum of 9 components stable
Sum of 9 components (t1/2 ca. 2 months)
It was recognised that a few components hydrolyse and disappear. Other components (some of them are already present at time 0) first increase with time, which however may later decrease. Hydrolysis rate constants and the half-life times could only be calculated for components which react in a 1st order kinetics, i.e. decrease constantly.
According to these data, the primary reactions for hydrolysis are understood as elimination of the sulphate groups yielding the respective vinylsulfones. In a second step, the vinylsulfon moieties are hydrolysed by addition of water forming the respective alcohol as described in the scheme attached under background material.
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.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
Aunque la ECHA ofrece una gran cantidad de material en su idioma, una parte de esta página está solo disponible en inglés. Más información sobre la política de multilingüismo de la ECHA.
Bienvenido a la página web de la ECHA. Este sitio no es plenamente compatible con Explorer 7 (y versiones anteriores). Por favor, actualice su Internet Explorer a una versión más reciente.
Esta web utiliza cookies para mejorar su experiencia de navegación en nuestros sitios web.
Más información sobre el uso de cookies.