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EC number: 211-745-8 | CAS number: 693-21-0
- 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
Phototransformation in water
Administrative data
Link to relevant study record(s)
Description of key information
Key value for chemical safety assessment
- Half-life in water:
- 59 d
Additional information
Phase I photolysis studies on DEGDN gave an estimated environmental quantum yield of 0.037, which is a factor of 5 lower than found in Phase II (0.18). There are several reasons for this difference, the most important of which is that the previous work used a value of ∑ε(λ)L(λ) for PNAP which was low by a factor of about 3. Less important differences are that the earlier work
1) used borosilicate vials instead of quartz tubes, the former of which could have filtered out a small fraction of the sunlight below 320 nm,
2) used Spring L(λ) values in the calculations but irradiations were performed in early summer,
3) used ε(λ) values for DEGDN determined at lower concentration, which were inherently less accurate for the weak absorbance tail extending to wavelengths up to nearly 650 nm,
4) used an actinometer which photolyzed about 30 times faster than DEGDN, making correlation of the two rates less accurate.
From the first-order photolysis rate constant, half-lives ranging from 15 days in the summer to 59 days in the winter were determined. The quatum yield for photolysis was measured to be 0.18. Photolytic transformation products were identified as 2 -hydroxyethylinitratoacetate, nitrate glycolic acid and formic acid.
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