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EC number: 206-022-9 | CAS number: 288-88-0
- 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
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
Description of key information
ErC50-72h of 45 mg/L for aquatic algae was determined. Therefore, 1,2,4 triazole is considered as harmful to algae.
Key value for chemical safety assessment
- EC50 for freshwater algae:
- 45 mg/L
- EC10 or NOEC for freshwater algae:
- 3.5 mg/L
Additional information
The acute toxicity of 1,2,4 Triazole to Pseudokirchnerella subcapitata has been investigated in an OECD 201 test according to GLP requirements (Thiebaud & Bouraly, 1998). In the test conditions, the ErC50 -72h is 45 mg/L and the NOEC is 3.49 mg/L. The test concentrations were maintained within 80% during the test. Therefore, 1,2,4 Triazole is considered as harmful to algae.
Another test similar to OECD guideline 201 has been performed and can be used as a supportive study (De Morsier, 1982). The cell concentration was determined at 120 hours instead of at least at 24, 48 and 72 hours after the start of the test. Therefore only an EC50-value after 5 days is given. in addition, concentrations were not maintained within 80% during the test. The EC50 -5d was determined to be 6.3 mg/L (nominal concentrations).
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