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EC number: 266-235-8 | CAS number: 66204-44-2
- 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:
- experimental study
- Adequacy of study:
- weight of evidence
- Study period:
- 2002
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Remarks:
- Guideline study (OECD 117) in compliance with GLP.
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 117 (Partition Coefficient (n-octanol / water), HPLC Method)
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- Fraunhofer
- Type of method:
- HPLC method
- Partition coefficient type:
- octanol-water
- Type:
- log Pow
- Partition coefficient:
- 1.89
- Temp.:
- 30 °C
- Remarks on result:
- other: 5-Methyl-oxazolidine as reaction product of MBO determined.
- Conclusions:
- The partition coefficient between n-octanol and water determined according to OECD guideline 117 resulted in a value of 1.89 based on 5-methyl-oxazolidine.
- Endpoint:
- partition coefficient
- Type of information:
- experimental study
- Adequacy of study:
- weight of evidence
- Study period:
- Experimental start: 2001-12-26; Experimental termination: 2001-12-28
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Remarks:
- Guideline study (EU A.8) in compliance with GLP.
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.8 (Partition Coefficient)
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- Jai Research Foundation
- Type of method:
- shake-flask method to: flask method
- Partition coefficient type:
- octanol-water
- Type:
- log Pow
- Partition coefficient:
- -0.225
- Remarks on result:
- other: Based on formaldehyde. Total formaldehyde determined after derivatisation with hydroxylammonium chloride.
- Type:
- log Pow
- Partition coefficient:
- -0.552
- Remarks on result:
- other: Based on Isopropanolamine (IPA). Total IPA determined potentiometrically.
- Details on results:
- temperature: no data
pH: no data - Conclusions:
- The partition coefficient between n-octanol and water of the reaction product determined according to EU method A.8 resulted in values of -0.23 based on formaldehyde analysis and -0.55 based on analysis of 2-hydroxypropylamine.
- Endpoint:
- partition coefficient
- Type of information:
- experimental study
- Adequacy of study:
- weight of evidence
- Study period:
- Experimental start: 2001-05-30; Experimental termination: 2001-06-01
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Remarks:
- Guideline study (EU A.8) in compliance with GLP.
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.8 (Partition Coefficient)
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- Jai Research Foundation
- Type of method:
- shake-flask method to: flask method
- Partition coefficient type:
- octanol-water
- Type:
- log Pow
- Partition coefficient:
- -0.043
- Remarks on result:
- other: Total formaldehyde determined after derivatisation with hydroxylammonium chloride; total HPA determined potentiometrically. Result based on the sum of FA and HPA
- Details on results:
- result: -0.043 (mean)
n-octanol/water 1:1:
-0.075
temperature: no data
pH: no data
n-octanol/water 1:2:
-0.210
n-octanol/water 2:1:
0.156 - Conclusions:
- The partition coefficient between n-octanol and water of the reaction product determined according to EU method A.8 resulted in a value of -0. 043 based on the nominal concentration of the substance.
Referenceopen allclose all
Description of key information
The reaction product was tested three times for the partition coefficient between n-octanol and water with different modifications of the test protocol. The study of Schülke & Mayr (2001) according to EU method A.8 resulted in a value of -0. 043 based on the nominal concentration of the active substance. The study of Schülke & Mayr (2002) according to EU method A.8 resulted in values of -0.23 based on formaldehyde analysis and -0.55 based on analysis of 2-hydroxypropylamine. The study of Bode according to OECD guideline 117 resulted in a value of 1.89 based on 5-methyl-oxazolidine.
Key value for chemical safety assessment
- Log Kow (Log Pow):
- -0.043
Additional information
In both studies of Schülke & Mayr according to EC method A.8 the standard test procedure was modified and modifications differ between the performed tests. In both studies the partition coefficient was determined only in the water phase via measurement of the degradation products of the substance. The content in the n-octanol phase was calculated by subtraction of the water-phase content from the total content. In the first study a log POWvalue of -0.043 was determined based on the nominal concentration of the substance. The stock solution of the test substance was prepared in n-octanol. The second study exhibited a log POWvalue of -0.23 based on formaldehyde analysis and -0.55 via analysis of 2-hydroxypropylamine. For this second test the stock solution of the test substance was prepared in water and the contents of formaldehyde and 2-hydroxypropylamine were determined. For the exposure calculations a log POW of -0.043 is used as a worst case. The third study was performed according to OECD 117. Due to the instability of the substance, the hydrolysis product 5-methyl-oxazolidine was chosen as the analytical target and measured by HPLC. The log POWvalue for the latter compound was determined as 1.89. The estimated value of the main constituent 3,3’-methylene-bis(5-methyl-oxazolidine) can be assumed to be lower than the value detected for the degradation product as the calculated log POW for the test substance is lower (-0.58) than the calculated value for 5-methyl-oxazolidine (-0.08).
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