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Diss Factsheets
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EC number: 939-685-4 | CAS number: 1474044-71-7
- 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
Partition coefficient
Administrative data
Link to relevant study record(s)
- Endpoint:
- partition coefficient
- Type of information:
- read-across from supporting substance (structural analogue or surrogate)
- Adequacy of study:
- key study
- Justification for type of information:
- REPORTING FORMAT FOR THE ANALOGUE APPROACH
1. HYPOTHESIS FOR THE ANALOGUE APPROACH
This read-across is based on the hypothesis that source and target substance have similar environmental fate properties based on similar physicochemical properties, common functional groups and structural similarities.
The target substance MDIPA-Esterquat C18 unsatd. is a UVCB substance consisting of diesters of mainly unsaturated C18 fatty acids with MDIPA as amine backbone.
The source substances DODMAC and DHTDMAC exhibit large structural similarities with the target substance. Details are described below.
Therefore, read-across from the existing bioaccumulation data on the source substance is considered as an appropriate adaptation to the standard information requirements of Annex IX, 9.3 of the REACH Regulation for the target substance, in accordance with the provisions of Annex XI, 1.5 of the REACH Regulation.
2. SOURCE AND TARGET CHEMICAL(S) (INCLUDING INFORMATION ON PURITY AND IMPURITIES)
See justification for read-across attached to chapter 13 of this IUCLID file.
3. ANALOGUE APPROACH JUSTIFICATION
See justification for read-across attached to chapter 13 of this IUCLID file.
4. DATA MATRIX
See justification for read-across attached to chapter 13 of this IUCLID file. - Reason / purpose for cross-reference:
- read-across source
- Reason / purpose for cross-reference:
- read-across: supporting information
- Key result
- Type:
- log Pow
- Partition coefficient:
- 3.8
- Remarks on result:
- other: pH and temperature not reported
Reference
Description of key information
log Kow = 3.8; read-across from DODMAC (EU RAR 2009)
Key value for chemical safety assessment
- Log Kow (Log Pow):
- 3.8
- at the temperature of:
- 20 °C
Additional information
Experimental data on log Kow qare not available for the target substance MDIPA Esterquat C18 unsatd. due to surface active properties of the substance. However, measured data from a structurally related substance are provided: the log Kow of DODMAC is reported to be 3.8. A justification for read-across is attached to iuclid section 13.
The n-octanol/water partition coefficients (log Kow) of the main constituents of MDIPA Esterquat C18 unsatd. were calculated to be in the range of 13.8 - 14.7 (Episuite v4.11, KOWWIN v1.68). However, charged molecules are outside of the applicability domain. Thus, the calculation is not reliable.
Calculated or measured Kow values are of limited practical use for cationic substances to estimate their physical properties or behaviour in the environment. An inherent property of cationic surfactants is that they accumulate at the interface between two phases. Thus, the accurate measurement of the Kow for any surfactant is difficult. Even if such measurements were made accurately, the Kow is not an appropriate hydrophobicity parameter for reliably predicting environmental behaviour because cationic substances in the environment instantaneously form complexes with naturally occurring negatively charged constituents in sewage, soils, sediments and with dissolved humic substances in surface waters.
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.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.