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EC number: 700-071-4 | CAS number: 932742-30-8
- 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)
Description of key information
Due to rapid hydrolysis of SIKA Hardener LI (see: Section 5.1.2 on hydrolysis study) upon contact with water, measurement of the partition coefficient of SIKA Hardener LI was technically not feasible. Instead the log Pow of the hydrolysis product were determined. The log Pow of the hydrolysis product was determined to be log Pow 7.41.
Key value for chemical safety assessment
- Log Kow (Log Pow):
- 7.41
- at the temperature of:
- 20 °C
Additional information
Waiving statement
In accordance with column 2 adaptation statement of Annex VII Regulation (EC) No 1907/2006 (REACH), the determination of the partition coefficient (as required in section 7.8 of Annex VII) the study does not need to be conducted as the substance decompose (fast hydrolysis) during the performance of the test. Thus the experimental determination was replaced by an appropriate calculation method. Please refer to IUCLID section 5.1 for more details about hydrolysis.
Model prediction
Using KOWWIN v.168 the log Kow of SIKA Hardener LI was calculated to be 16.97 at 25 °C (EPI Suite, 2014). The substance is not within the applicability domain of the model. Therefore the estimation may be less accurate. The QMRF and QPRF documentation are attached to the respective study record.
Supporting studies
The partition coefficient (n-octanol/water) of the first hydrolysis product (Aldehyde L) of the test item was assessed in accordance with OECD guideline no. 117, EU method A.8 and OPPTS 830.7570 guideline. In the course of this study the partition coefficient (Pow) of Aldehyde L was determined using high performance liquid chromatography. Retention times of components of Aldehyde L are higher than the last eluting standard (DDT); therefore an accurate value of log Pow could not be given. The extrapolated log Pow value calculated for Aldehyde L (peak 1, retention time: 12.56 minutes) and Aldehyde L (peak 2, retention time: 13.53 minutes) are 7.20 and 7.41, respectively.
Furthermore s study was conducted according to Regulation (EC) 440/2008 Part A A.8 to determine the logPow of the second hydrolysis product of the test item. Using the shake flask method the log Pow was determined to be 0.99 at 23 °C.
Conclusion
In conclusion the logPow of the first hydrolysis product was regarded as worst case. Consequently a logPow of 7.41 was chosen as key value for chemical safety assessment.
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.
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