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EC number: 700-342-7 | CAS number: 1163775-81-2
- 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
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
- Two key studies for 1,2,4-Benzenetricarboxylic acid, mixed dodecyl and octyl triesters are reported for biodegradation:
The study from Chen Xiaoqian (2015) reports that 1,2,4-Benzenetricarboxylic acid, mixed dodecyl and octyl triesters was not readily biodegradable under the present test conditions.
The study from Zhang Jingji (2015) report that 1,2,4-Benzenetricarboxylic acid, mixed dodecyl and octyl triesters was primarily biodegradable, but not ultimately biodegradable. Therefore, the test substance was inherently biodegradable according the OECD definition.
Key value for chemical safety assessment
- Biodegradation in water:
- inherently biodegradable, not fulfilling specific criteria
- Type of water:
- freshwater
Additional information
The study from Chen Xiaoqian (2015) was conducted according to the guidelines of "Ministry of environmental protection of the people's Republic of China. The Guidelines for the Testing of Chemicals-Degradation and Accumulation, 2013, OECD 301F Ready Biodegradability: Manometric Respirometry Test, 1992". Under specific experimental conditions, the ready biodegradability of 1,2,4 -Benzenetricarboxylic acid, mixed dodecyl and octyl triesters was determined in a 28 -day dissolved oxygen depletion test using activated sludge from a domestic waste water treatment plan. The tested concentration of test substance was 20.08 mg/L and 20.48 mg/L (i.e. 52.81 mg/L ThOD/L and 53.86 mg ThOD/L). The concentration of sludge inoculum in the test system was 30 mg/L, and the tested concentration of sodium benzoate used as reference substance was 100 mg/L (i.e. 167 mg ThOD/L). A toxicity control was also performed.
During the test, the temperature was rnaintained at 22.1-22.9°C.The mean total O2 uptake in the inoculum blanks at the end of the test was less than 60 mg O2/L in 28 days meeting the guideline requirement. Biodegradation of the reference substance (sodium benzoate) reached the pass level of the ready biodegradation test (> 60% within 14 days). Biodegradation of the reference substance (sodium benzoate) reached an average of 85% by Day 14.The difference of extremes between replicate values of the removal of the test substance during the 28 d test period was less than 20%. The results of the toxicity control showed that the test substance met the criteria for not being inhibitorγ to the rnicrobial inoculum. Thus, the test is valid.
Results showed that under the experimental conditions, biodegradation of test substance attained an average of 36 % at Day 23 (10-d window) and 43 % at Day 28 and did not meet the10-d window criteria.
Therefore, the test substance cannot be considered to be readily biodegradable under the experimental conditions according to this test method.
The study from Zhang Jingji (2015) was conducted according to the guidelines of "Ministry of environmental protection of the people's Republic of China. The Guidelines for the Testing of Chemicals-Degradation and Accumulation, 2013, OECD 302C Inherent Biodegradability: Modified MITI Test II " and "OECD Guidelines for the Testing of Chemicals, 1981, 302C: Inherent Biodegradability: Modified MITI Test (II)". Under specific experimental conditions, the ready biodegradability of 1,2,4 -Benzenetricarboxylic acid, mixed dodecyl and octyl triesters was determined in a 28-day dissolved oxygen depletion test using activated sludge from a domestic waste water treatment plan. The tested concentrations of test substance were 30.00 mg/L, 30.04 mg/L and 30.16 mg/L (i.e. 78.90 mg ThOD/L, 79.01 mg/L ThOD/L and 79.32 mg ThOD/L). The concentration of sludge inoculum in the test system was 100 mg/L, and the tested concentration of sodium benzoate used as reference substance was 100 mg/L (i.e. 167 mg ThOD/L). A toxicity control was also performed. During the test, the temperature was rnaintained at 24.6 -25.5°C. The mean total O2 uptake in the inoculum blanks for procedure control at the end of the test (28 days) was 23.95 mg O2/L, which is less than 60 mg O2/L in 28 days meeting the guideline requirement. Biodegradation of the reference substance (sodium benzoate) reached the pass level of the biodegradation test (> 60% within 14 days). Biodegradation of the reference substance (sodium benzoate) reached an average of 71% by Day 14. The difference of extremes between replicate values of the removal of the test substance during the 28 d test period was less than 20%. The results of the toxicity control showed that the test substance met the criteria for not being inhibitorγ to the rnicrobial inoculum. Thus, the test is valid. Results showed that under the experimental conditions, biodegradation of test substance attained an average of 55 % at Day 28, indicating that the test substance had primary biodegradability, but no ultimate biodegradability. Therefore, the test substance can be considered to be inherently biodegradable according to the definition specified by the OECD guideline.
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