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Diss Factsheets
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EC number: 700-453-0 | CAS number: 59802-05-0
- 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:
- (Q)SAR
- Adequacy of study:
- key study
- Study period:
- 2010-10-05
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- accepted calculation method
- Remarks:
- (EPIWIN)
- Justification for type of information:
- The hydrolysis test has not been experimentally dertermined due to the test item having low solubility in aqueous media and being a complex mixture. However, the test item would be expected to hydrolyse.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 010
- Report date:
- 2010
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- other: QSAR method
- Version / remarks:
- QSAR; Hydrowin v2.00 (©2000, US Environmental Protection Agency)
- Deviations:
- no
- Principles of method if other than guideline:
- Testing was not carried out using Method 111 of the OECD Guidelines for Testing Chemicals, 13 April 2004 , due to the test item having low solubility in aqueous media and being a complex mixture.
- GLP compliance:
- no
Test material
- Reference substance name:
- 1,4-Benzenedicarboxylic acid, 1,4-diisononyl ester
- EC Number:
- 700-453-0
- Cas Number:
- 59802-05-0
- Molecular formula:
- C26H42O4
- IUPAC Name:
- 1,4-Benzenedicarboxylic acid, 1,4-diisononyl ester
- Test material form:
- liquid
Constituent 1
Study design
- Estimation method (if used):
- The estimated half-lives at pH 7 and pH 8 for several posible isomers has been calculated using HYDROWIN v2.00 (© 2000 US Environmental Protection Agency).
- Details on test conditions:
- not applicable, QSAR estimation
Results and discussion
- Transformation products:
- not measured
Dissipation DT50 of parent compound
- Key result
- pH:
- 8
- DT50:
- >= 38 - <= 57 d
- Type:
- other: The estimated half-lives at pH 8 for several possibly isomers were predicted by using HYDROWIN v2.00 (©2000 US EPA).
- Remarks on result:
- other: QSAR method
- Remarks:
- Due to low solubility in aqueous media and the nature of the test substance as UVCB, hydrolysis was not determined experimentally, but calculated by QSAR method.
- Details on results:
- The main functional groups in the test item are two esters, It is well documented that esters usually hydrolyses at a steady rate under envirnmentally relevant conditions of pH and temperature. Esers usually hydrolyse more quickly in basic conditions than acidic condition, with both hydrolysing quicker than at neutral pH. The estimated half-lives at pH 7 and pH 8 for several posible isomers has been calculated using HYDROWIN v2.00 (© 2000 US Environmental Protection Agency).
The estimated half-lives at pH 7 and pH 8 using HYDROWIN v2.00 (©2000 US EPA) ranged from 255 to 573 days and 26 to 57 days, respectively. Approximately similar estimates would be expected for the other isomers as hydrolysis would occur at the same structural location for each isomer, but stearic hindrance and solubility of the leaving isomer will affect the hydrolysis rate.
Any other information on results incl. tables
Hydrocrabon isomers (C9H19) |
Half-life (days) |
|
pH 7 |
pH 8 |
|
2 x n-nonyl |
573 |
57 |
2x 2-methyloctyl |
513 |
51 |
2x 7-methyloctyl |
255 |
26 |
2 x 2,6-dimethylheptyl |
513 |
51 |
2-methyloctyl and 7-methyloctyl |
376 |
38 |
Approximately similar estimates would be expected for the other isomers as hydrolysis would occur at the same structural location for each isomer, but stearic hindrance and solubility of the leaving isomer will affect the hydrolysis rate.
Applicant's summary and conclusion
- Validity criteria fulfilled:
- not applicable
- Remarks:
- QSAR analysis
- Conclusions:
- The hydrolysis test has not been determined due to the test item having low solubility in aqueous media and being a complex mixture. However, the test item would be expected to hydrolyse. The estimated half-lives at pH 7 and pH 8 using HYDROWIN v2.00 (©2000 US Environmental Projection Agency) ranged from 255 to 573 days and 26 to 57 days respectively.
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