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EC number: 223-228-4 | CAS number: 3775-90-4
- 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 – 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
The substance 2 -tert-butylaminoethyl methacrylate (TBAEMA) is an ester of methacrylic acid and tert-butyl hydroxyethylamine.
Abiotic degradation
A hydrolysis test results for TBAEMA has been read across from a structurally strongly related substance DMAEMA. Hydrolysis half-lives at pH 4, 7 and 9 were observed to be >1 year (at 50 °C), 4.5 days (at 25 °C) and 3.3 hours (at 25 °C) respectively. See paragraph 5.1.3 for more details on both substances.
According to EPIWIN calculations the reaction with OH-radicals in air would result in a half-life time in air in the order of 4 hours. However the substance has based on its Henry's law constant of 0.062 Pa m3/mol a low potential to volatilise to any significant extent.
Biodegradation
In a ready biodegradation study according to OECD TG 301A (GLP, reliability 1) 49% COD removal was found after 24 days. The study demonstrates that the substance should not be considered as readily biodegradable. The most likely reason for this result is that the substance is partly degraded. The anticipated degradation product is N-tert butyl, N-hydroxyethylamine (CAS no 4620-70-6).
Bioaccummulation
The substance is expected to have a low bioaccumulation potential based on the low log Kow. Log Kow of 2.12 was estimated with the KOWWIN estimation software because the substance is not stable under test conditions.
Transport and distribution
2 -tert-butylamino ethyl methacrylate is unstable under sorption/desorption test conditions. The sorption potential was therefore estimated using KOCWIN software. The calculated Koc of 89.8 L/kg indicates that 2 -tert-butylaminoethyl methacrylate has a low sorption potential.
The Henry's Law constant at 20 °C is 0.062 Pa.m3/mol for 2 -tert-butylamino ethyl methacrylate indicating that this substance has a low tendency to evaporate from wet surfaces.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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