Registration Dossier
Registration Dossier
Diss Factsheets
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EC number: 202-980-7 | CAS number: 101-83-7
- 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
Phototransformation in air
Administrative data
Link to relevant study record(s)
Description of key information
Half-life (DT50): 2.9 hours; degradation rate constant: 131.7 E-12 cm³ molecule-1 s-1 for reaction with: OH radicals (calculated with SRC-AOP Win v 1.91).
Key value for chemical safety assessment
- Half-life in air:
- 2.9 h
- Degradation rate constant with OH radicals:
- 500 cm³ molecule-1 d-1
Additional information
There are no experimental data on the stability of dicyclohexylamine in the atmosphere.
The calculated half-life of dicyclohexylamine in air due to indirect photodegradation is 2.9 hours, considering a reaction constant of 131.7 x 10-12 cm3/molecule.sec and a daily mean (24-h) OH-radicals concentration of 500,000 radicals/cm3 (Bayer Industry Services, 2005a).
The recalculated half-life of dicyclohexylamine in air using the latest version of AopWin v1.92 is 0.974 hours, considering a reaction constant of 131.7 E-12 cm3/molecule.sec and a daily mean (12-h) OH-radicals concentration of 150,000 radicals/cm3.
DCHA has a high log Kow-value, it will probably mostly be abundant in sediment and soil and hence not being exposed to sunlight (IVL Report B1817, 2008).
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