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EC number: 233-986-8 | CAS number: 10482-56-1
- 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
Toxicity to microorganisms
Administrative data
Link to relevant study record(s)
- Endpoint:
- toxicity to microorganisms, other
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 1978
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- comparable to guideline study with acceptable restrictions
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- other: OECD Guideline 301 C (Ready Biodegradability: Modified MITI Test (I))
- Deviations:
- yes
- Remarks:
- (test duration lower than 28 d)
- GLP compliance:
- no
- Analytical monitoring:
- yes
- Details on sampling:
- - Concentrations: 100 mg/L
- Vehicle:
- no
- Test organisms (species):
- activated sludge
- Details on inoculum:
- - Initial biomass concentration: 30 mg/L SS
- Test type:
- static
- Water media type:
- freshwater
- Limit test:
- yes
- Total exposure duration:
- 2 wk
- Nominal and measured concentrations:
- 100 mg/L (nominal)
- Details on test conditions:
- TEST SYSTEM
- Sludge concentration (weight of dry solids per volume): 30 mg/L.
- Nitrification inhibitor used (delete if not applicable): none.
OTHER TEST CONDITIONS
- Adjustment of pH: no.
EFFECT PARAMETERS MEASURED (with observation intervals if applicable): Biodegradation % based on oxygen consumption.
TEST CONCENTRATIONS
- Test concentrations: 100 mg/L - Reference substance (positive control):
- not specified
- Key result
- Duration:
- 14 d
- Dose descriptor:
- NOEC
- Effect conc.:
- 100 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- other: Readily biodegradability
- Details on results:
- The NOEC of the test item was determined to be 100 mg/L since the substance degrades well (84.6% of biodegradation at 14 days).
- Validity criteria fulfilled:
- not specified
- Conclusions:
- The NOEC (14d) for microorganism toxicity of the test item was determined to be 100 mg/L (based on biodegradation).
- Executive summary:
A ready biodegradability test was perfomed on alpha terpineol. The test item was incubated for 14 days at a concentration of 100 mg/L with 30 mg/L SS activated sludge inoculum under aerobic conditions in a mineral medium. The NOEC (14d) of the test item was determined to be 100 mg/L since the substance degraded well (84.6% of biodegradation at 14 days).
- Endpoint:
- toxicity to microorganisms, other
- Type of information:
- read-across from supporting substance (structural analogue or surrogate)
- Adequacy of study:
- key study
- Justification for type of information:
- REPORTING FORMAT FOR THE ANALOGUE APPROACH
The analogue substance alpha terpineol which shares the same functional groups with the substance L-alpha terpineol also has comparable values for the relevant molecular properties.
See attached the reporting format. - Reason / purpose for cross-reference:
- read-across source
- Key result
- Duration:
- 14 d
- Dose descriptor:
- NOEC
- Effect conc.:
- 100 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- other: read-across approach from analogue alpha terpineol
- Basis for effect:
- other: read-across approach from analogue alpha terpineol for which a ready biodegradability test was conducted up tp 100 mg/L.
- Remarks on result:
- other: read-across approach from analogue alpha terpineol determined to be ready biodegradable
- Details on results:
- Based on the experimental results on analogue substance alpha terpineol where NOEC was determined to be 100 mg/L based on biodegradation of 84.6% at 14 days, the read-across approach was applied and NOEC for L-alpha terpineol was calculated to be 100 mg/L.
- Validity criteria fulfilled:
- not applicable
- Conclusions:
- Based on the experimental results from a biodegradation test performed on analogue substance alpha terpineol, the NOEC (14d) for microorganism toxicity of laevo alpha terpineol was determined to be 100 mg/L.
- Executive summary:
A ready biodegradability test was perfomed on alpha terpineol. The test item was incubated for 14 days at a concentration of 100 mg/L with 30 mg/L SS activated sludge inoculum under aerobic conditions in a mineral medium. The NOEC (14d) of the test item was determined to be 100 mg/L since the substance degraded well (84.6% of biodegradation at 14 days). Based on these results, the read-across approach was applied and 14 day-NOEC for L-alpha terpineol was calculated to be 100 mg/L.
Referenceopen allclose all
Description of key information
Key study. Read-across approach. Test method according to OECD 301C. Based on the experimental results on analogue substance alpha terpineol, the read-across approach was applied and 14 day-NOEC for laevo alpha terpineol was determned to be 100 mg/L.
Key value for chemical safety assessment
- EC10 or NOEC for microorganisms:
- 100 mg/L
Additional information
Key study. Read-across approach. A ready biodegradability test was perfomed on the analogue substance alpha terpineol according to OECD Guideline 301C. Under the test conditions, the NOEC (14d) of the analogue was determined to be 100 mg/L since the substance degraded well (84.6% of biodegradation at 14 days). Based on these results, the read-across approach was applied and 14 day-NOEC for laevo alpha terpineol was calculated to be 100 mg/L.
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