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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 216-732-0 | CAS number: 1655-29-4
- 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
Administrative data
- Endpoint:
- hydrolysis
- Type of information:
- experimental study
- Adequacy of study:
- other information
- Reliability:
- 4 (not assignable)
- Rationale for reliability incl. deficiencies:
- other: Secondary literature. Original reference not yet available.
Data source
Referenceopen allclose all
- Reference Type:
- review article or handbook
- Title:
- Reaxys ID 3642373
- Author:
- Reaxys
- Year:
- 2 011
- Bibliographic source:
- https://www.reaxys.com/reaxys/secured/start.do
- Report date:
- 2011
- Reference Type:
- publication
- Title:
- Electroassisted methods for waste destruction: Silver(II) and peroxydisulfate reagents in the electrochemically mediated oxidation of polyaromatic sulfonates
- Author:
- Ravera M et al.
- Year:
- 2 004
- Bibliographic source:
- Chemosphere Volume 57, Issue 7, November 2004, Pages 587–594
Materials and methods
- GLP compliance:
- not specified
Test material
- Reference substance name:
- Disodium naphthalene-1,5-disulphonate
- EC Number:
- 216-732-0
- EC Name:
- Disodium naphthalene-1,5-disulphonate
- Cas Number:
- 1655-29-4
- Molecular formula:
- C10H8O6S2.2Na
- IUPAC Name:
- disodium naphthalene-1,5-disulphonate
- Test material form:
- solid: particulate/powder
- Remarks:
- migrated information: powder
- Details on test material:
- Purity not reported
Empirical formula: C10H8O6S2*2Na
Molecular mass: 332.263 g/mole
Constituent 1
Study design
- Analytical monitoring:
- not specified
Results and discussion
Any other information on results incl. tables
Results
Method 1:
batch electrolysis at +3.0 V vs SCE; Pt anode; title comp. aq. solution; with AgNO3 and HNO3; Ag(II) cation generated in situ; destruction factor increased with reaction time (diagram); absorbance measurement at 287 nm
Method 2:
batch electrolysis at +3.0 V vs SCE; Pt anode; aq. solution; with Na2SO4; S2O8(2-) anion generated in situ; destruction factor vs time; effect of pH, temp. and title comp./S2O8(2-) molar ratio; diagrams; absorbance measurement at 287 nm, HPLC and NMR
Method 1 | Method 2 | |
Type | oxidation | oxidation |
Concentration | 0.05 mol/L = 16.61 g/L | 0.05 mol/L = 16.61 g/L |
Degradation rate [%] | approx. 100 | approx. 100 |
Exposure time [h] | approx. 4 | approx. 10 |
Temperature [°C] | 60 | 20 - 80 |
Rate constant | 0.1 - 2.57 per hour |
|
pH value | 2 - 10 | |
Half-life time [h] | 0.27 - 6.93 | |
Degradation product | 7-hydroxy-5,8-dioxo-5,8-dihydro-naphthalene-1-sulfonic acid anion; 5,7,8-trihydroxy-5,8-dihydro- naphthalene-1-sulfonic acid anion; carbon dioxide |
Applicant's summary and conclusion
- Validity criteria fulfilled:
- not specified
- Conclusions:
- The abiotic degradation of disodium naphthalene-1,5-disulphonate was reported with two methods. Method 1: oxidation with AgNO3 and HNO3 showed a degradation rate of approx. 100 % after an exposure time of approx. 4 hours at 60 °C by a concentration of 0.05 mole/L (16.61 g/L). Method 2: Oxidation with Na2SO4; S2O8(2-)anion showed a degradtion rate of approx. 100 % after an exposure time of approx. 10 h at 20 - 80 °C by a concentartion of 0.05 mole/L (16.61 g/L).
- Executive summary:
The abiotic degradation of disodium naphthalene-1,5-disulphonate was reported with two methods.
Method 1: oxidation with AgNO3 and HNO3 showed a degradation rate of approx. 100 % after an exposure time of approx. 4 hours at 60 °C by a concentration of 0.05 mole/L (16.61 g/L).
Method 2: Oxidation with Na2SO4; S2O8(2-)anion showed a degradtion rate of approx. 100 % after an exposure time of approx. 10 h at 20 - 80 °C by a concentartion of 0.05 mole/L (16.61 g/L).
In the oxidation of disodium naphthalene-1,5-disulphonat with Na2SO4; S2O8 (2-) anion arise following degradation products of 7-hydroxy-5,8-dioxo-5,8-dihydro-naphthalene-1-sulfonic acid anion; 5,7,8-trihydroxy-5,8-dihydro- naphthalene-1-sulfonic acid anion; carbon dioxide.
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.