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Diss Factsheets
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EC number: 700-742-1 | CAS number: -
- 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
Hydrolysis
Administrative data
Link to relevant study record(s)
Description of key information
Half-lives (DT50) at 25 °C:
- t1/2 (pH4) > 1 year
- t1/2 (pH7) = 280 days
- t1/2 (pH9) = 68.4 hours
Key value for chemical safety assessment
- Half-life for hydrolysis:
- 280 d
- at the temperature of:
- 25 °C
Additional information
Concerning hydrolysis, no experimental data are available of RAV 7MC (EC 700-742-1). In order to fulfill this endpoint under REACH, read-across was used (diallyl 2,2'-oxydiethyl dicarbonate, EC 205-528-7).
In an experiment, conducted according to OECD Guideline 111, it was found that the higher the surrounding pH, the faster the hydrolysis rate, whereas half-lives (at 25 °C) are decreasing with increasing pH values (Mullee, 2005). The values obtained at pH 4, 7 and 9 were described as followed: more than 1 year, 280 days and 68.4 hours, respectively. At pH 7 and 9 graphs of the common logarithm of the concentration (g/L) versus time (hours) were plotted and the rate constant and half-life were calculated. By plotting the natural logarithm of the rate constants against the reciprocal of the temperature (K), the rate constant and half-lives at 25 °C were obtained by either inter- or extrapolation. The sample solutions at pH 4 were maintained at 50 +/- 0.5 °C for a period of 120 hours, whereby less than 10 % hydrolysis was measured after 5 days, which is considered as equivalent to a half-life greater than 1 year at 25 °C. Sample solutions at pH 7 were maintained at the same temperatures for a period of 360 hours. The extent of hydrolysis after 360 hours indicated that a further test (with solutions being maintained at 60 and 70 +/- 0.5 °C) was required to estimate the rate constant and half-life, resulting in a half-live of 69 h at 60 °C and 23.7 h at 70 °C. Due to the anticipated rapid hydrolysis at pH 9, solutions were maintained at 20 °C and 30 +/- 0.5 °C. The half-lives were found at 133 h and 36 h, respectively.
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