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Diss Factsheets
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EC number: 208-013-5 | CAS number: 505-54-4
- 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 ā 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
Toxicity to microorganisms
Administrative data
- Endpoint:
- activated sludge respiration inhibition testing
- Type of information:
- read-across based on grouping of substances (category approach)
- Adequacy of study:
- key study
- Study period:
- 1990
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Meets National Standard Methods (DIN); non-GLP
- Justification for type of information:
- 1. HYPOTHESIS FOR THE CATEGORY APPROACH (ENDPOINT LEVEL)
Dicarboxylic acids are organic compounds that contain two carboxylic acid functional groups. They have the general type formula HOOC-(CH2)n-COOH. The present defined category comprises dicarboxylic acids with straight carbon chain having a ānā value from 6 to 16.
The physical and chemical properties as well as the toxicology and environmental fate and effects show that substances in this category have a similar order of toxicological and environmental fate properties, which supports the grouping of these substances as a category. (see attached justification)
2. CATEGORY APPROACH JUSTIFICATION (ENDPOINT LEVEL)
There are number of unifying considerations justifying the similarity between these substances in some important aspects. These include:
(1) Similarity of Use: these dicarboxylic acids have several industrial uses in the production of adhesives, plasticizers, lubricants, copolymers (such as polyamides and polyesters), etc.
(2) Similarity of Functional groups: all these substances contain two common functional groups (2 carboxyl groups). The only difference between the substances of this group lies in the length of the carbon chain.
(3) Similarity of Physical / Chemical properties: the similarity of physical / chemical properties for these substances (see attached justification)
(4) Similarity of Metabolism: Dicarboxylic acids were shown to be rapidly absorbed from the gastrointestinal tract, introduced into the fatty acid catabolism and therefore extensively metabolized by the organism and excreted (Passi, S. et al, 1983).
(5) Similarity of Mammalian Toxicity: The constituents of this class have similar toxicological properties. They are not acutely toxic, irritating to skin or sensitizing. However, they all present, except for dodecanedioic acid, irritating effects on the eyes (from moderate to high effects). They do not produce systemic effects in repeated dose studies. They are neither mutagenic nor carcinogenic and do not produce developmental/reproductive toxicity. (see attached justification)
(6) Similarity of Environmental Toxicity and Fate Properties: The substances in this category have similar environmental effects properties. The environmental effects data are similar for most category members in that most members do not exhibit acute toxicity. (see attached justification)
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 990
- Report date:
- 1990
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- ISO 8192 (Water quality - Test for inhibition of oxygen consumption by activated sludge for carbonaceous and ammonium oxidation)
- GLP compliance:
- no
Test material
- Reference substance name:
- Sebacic acid
- EC Number:
- 203-845-5
- EC Name:
- Sebacic acid
- Cas Number:
- 111-20-6
- Molecular formula:
- C10H18O4
- IUPAC Name:
- sebacic acid
- Details on test material:
- - Name of test material (as cited in study report): Sebacic Acid
- Substance type: White powder
- Physical state: Solid
Constituent 1
Sampling and analysis
- Analytical monitoring:
- no
Test organisms
- Test organisms (species):
- activated sludge, domestic
Study design
- Test type:
- static
- Water media type:
- freshwater
Test conditions
- Details on test conditions:
- Type: aquatic
Results and discussion
Effect concentrations
- Duration:
- 3 h
- Dose descriptor:
- other: EC20
- Effect conc.:
- > 1 000 mg/L
- Nominal / measured:
- nominal
- Basis for effect:
- inhibition of total respiration
- Remarks:
- respiration rate
Any other information on results incl. tables
RS-Freetext:
DOC (calculated) 590 mg/l
30 min values:
oxygen consumption (mg02/l*h) 41,3
reference value (mg02/l*h) 39,9
delta (%) 4
EC20 (determined graphically) > 1000 mg/l
3h values:
oxygen consumption (mg02/l*h) 42,3
reference value (mg02/l*h) 36,4
delta (%) 16
EC20 (determined graphically) > 1000 mg/l
Applicant's summary and conclusion
- Validity criteria fulfilled:
- not specified
- Conclusions:
- Under the conditions of the study, the EC20 of the test substance was determined to be >1000mg/L.
- Executive summary:
The toxicity to microorganisms of the test substance was evaluated according to ISO 8192 (Test for Inhibition of Oxygen Consumption by Activated Sludge). Under the conditions of the study the EC20 of the test substance was determined to be >1000mg. After incubation of 3 hours no respiration inhibition observed up to the highest test concentration of 1000 mg/L. The inhibition of the degradation activity of activated sludge on sebacic acid is not anticipated when introduced in appropriate low concentrations.
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