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EC number: 239-556-6 | CAS number: 15520-10-2
- 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

Endpoint summary
Administrative data
Description of key information
Additional information
Reliable acute data for the three trophic levels (algae, invertebrates and fish) are available together with data on microorganism toxicity. Additionally a reliable study on Daphnia magna reproduction (RL category 1) was performed and the alga data may also assessed for chronic effects (EC10 reported). Due to the caustic properties of the members of the amine heads category adjustment of pH to physiological values is a prerequisite for meaningful results considered however in only a subset of available studies. Comparison of non-adjusted toxicity data for both, fish and microorganisms for the three category members corresponds to what would be expected from physico-chemical data (DCH being less caustic than HMD, no experimental data for MPMD).
An algae studyperformed according to internationally accepted guidelines and GLP included also chemical analysis. Stability of the test item (HMD) throughout the test period of 72 hours at high light intensity and comparably high temperature confirmed the stability of the test substance. Therefore, stability may also be assumed in regard to acute tests on fish and invertebrates. Algae proved to be of very low sensitivity in regard to the amine heads category if pH is adjusted to physiological values (EC10 72 h, growth rate: 118 mg/L).
Acute fish toxicity is even lower as long as pH is adjusted to the physiological range. Two reliable studies report 96-hours LC50-values of >215 mg/L and 1825 mg/L, respectively for amine heads category member HMD.
Invertebrates represent the most sensitive trophic level. The acute EC50(48 h) was calculated as 31.5 mg/L. This value is the geometric mean of two equally reliable 48 h tests on Daphnia magna yielding EC50-values of 19.8 mg/L and 50 mg/L, respectively.
Additionally reliable chronic data are available for daphnia. The semi-static test (change of test medium 3 times per week) with analytical verification of test item concentration resulted in a NOEC reproduction (21 d) of 4.16 mg/L and an EC50(21 d) for adult mortality of 6 mg/L (time weighted mean measured concentrations). This corroborates that invertebrates represent by far the most sensitive trophic level.
No data are available for chronic fish toxicity. In acute tests fish however proved to be least sensitive compared to algae and invertebrates and given the ready biodegradability of all three members of the category chronic toxicity is rendered very unlikely.
Considering microorganism toxicity in regard to sewage treatment plants, a 20-h EC10 of 12.5 g/L was determined from a growth inhibition test on Pseudomonas putitada when pH was adjusted to environmentally acceptable levels. This renders the amine heads category essentially non-toxic to sewage treatment plant microorganisms.
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