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EC number: 930-915-9 | CAS number: 1318-02-1
- 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
Density
Administrative data
Link to relevant study record(s)
- Endpoint:
- relative density
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- guideline study with acceptable restrictions
- Qualifier:
- according to guideline
- Guideline:
- other: DIN 66137-2
- Deviations:
- not specified
- Principles of method if other than guideline:
- The gas pycnometry (according to DIN 66137) characterizes the volume of a sample by means of pressure measurement respectively pressure comparison based on the isothermal change of state of an ideal gas. The sample mass gets exactly determined with an analytical balance and the density calculated by dividing the mass of the sample with the measured volume.
The samples have to be dry in general and if necessary dried in a drying chamber previously to the measurement. The sample is filled into a measuring cup, placed into the metering chamber and purged with measuring gas.
The factor Mpempty and the additional volume (Vadd) are known by calibration. Before measurement the pressure difference to ambient pressure is measured. The measurement starts when the gas enters the metering chamber and the equilibrium pressure pd is evaluated. The Vadd-valve is opened afterwards,
followed by a pressure compensation and the measurement of the adjusted equilibrium pressure pcd. The measuring system is brought back to ambient pressure at the end of the measuring cycle. Automatic repeated measurements may be done afterwards respectively the metering chamber may be opened and the sample extracted. - GLP compliance:
- not specified
- Type of method:
- pycnometer method
- Specific details on test material used for the study:
- Zeocros CG180 (P Zeolite), 2020-531
- Key result
- Type:
- relative density
- Density:
- 2.31 g/cm³
- Temp.:
- 20 °C
- Conclusions:
- The density measured by gas pycnometry was 2.31 g/cm³.
- Executive summary:
Density measurement by helium pycnometry (according to DIN 66137-2) was performed on the zeolite Zeocros CG180.
- Endpoint:
- relative density
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- guideline study with acceptable restrictions
- Qualifier:
- according to guideline
- Guideline:
- other: DIN 66137-2
- Deviations:
- not specified
- Principles of method if other than guideline:
- The gas pycnometry (according to DIN 66137) characterizes the volume of a sample by means of pressure measurement respectively pressure comparison based on the isothermal change of state of an ideal gas. The sample mass gets exactly determined with an analytical balance and the density calculated by dividing the mass of the sample with the measured volume.
The samples have to be dry in general and if necessary dried in a drying chamber previously to the measurement. The sample is filled into a measuring cup, placed into the metering chamber and purged with measuring gas.
The factor Mpempty and the additional volume (Vadd) are known by calibration. Before measurement the pressure difference to ambient pressure is measured. The measurement starts when the gas enters the metering chamber and the equilibrium pressure pd is evaluated. The Vadd-valve is opened afterwards,
followed by a pressure compensation and the measurement of the adjusted equilibrium pressure pcd. The measuring system is brought back to ambient pressure at the end of the measuring cycle. Automatic repeated measurements may be done afterwards respectively the metering chamber may be opened and the sample extracted. - GLP compliance:
- not specified
- Type of method:
- pycnometer method
- Specific details on test material used for the study:
- Sylosiv A4 (A Zeolite), #1000361205
- Key result
- Type:
- relative density
- Density:
- 2.19 g/cm³
- Temp.:
- 20 °C
- Conclusions:
- The density measured by gas pycnometry was 2.19 g/cm³.
- Executive summary:
Density measurement by helium pycnometry (according to DIN 66137-2) was performed on the zeolite Sylosiv A4.
- Endpoint:
- relative density
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- guideline study with acceptable restrictions
- Qualifier:
- according to guideline
- Guideline:
- other: DIN 66137-2
- Deviations:
- not specified
- Principles of method if other than guideline:
- The gas pycnometry (according to DIN 66137) characterizes the volume of a sample by means of pressure measurement respectively pressure comparison based on the isothermal change of state of an ideal gas. The sample mass gets exactly determined with an analytical balance and the density calculated by dividing the mass of the sample with the measured volume.
The samples have to be dry in general and if necessary dried in a drying chamber previously to the measurement. The sample is filled into a measuring cup, placed into the metering chamber and purged with measuring gas.
The factor Mpempty and the additional volume (Vadd) are known by calibration. Before measurement the pressure difference to ambient pressure is measured. The measurement starts when the gas enters the metering chamber and the equilibrium pressure pd is evaluated. The Vadd-valve is opened afterwards,
followed by a pressure compensation and the measurement of the adjusted equilibrium pressure pcd. The measuring system is brought back to ambient pressure at the end of the measuring cycle. Automatic repeated measurements may be done afterwards respectively the metering chamber may be opened and the sample extracted. - GLP compliance:
- not specified
- Type of method:
- pycnometer method
- Specific details on test material used for the study:
- NaY Zeolite (Y Zeolite), RZ200094/1
- Key result
- Type:
- relative density
- Density:
- 2.47 g/cm³
- Temp.:
- 20 °C
- Conclusions:
- The density measured by gas pycnometry was 2.47 g/cm³.
- Executive summary:
Density measurement by helium pycnometry (according to DIN 66137-2) was performed on NaY zeolite.
- Endpoint:
- relative density
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- guideline study with acceptable restrictions
- Qualifier:
- according to guideline
- Guideline:
- other: DIN 66137-2
- Deviations:
- not specified
- Principles of method if other than guideline:
- The gas pycnometry (according to DIN 66137) characterizes the volume of a sample by means of pressure measurement respectively pressure comparison based on the isothermal change of state of an ideal gas. The sample mass gets exactly determined with an analytical balance and the density calculated by dividing the mass of the sample with the measured volume.
The samples have to be dry in general and if necessary dried in a drying chamber previously to the measurement. The sample is filled into a measuring cup, placed into the metering chamber and purged with measuring gas.
The factor Mpempty and the additional volume (Vadd) are known by calibration. Before measurement the pressure difference to ambient pressure is measured. The measurement starts when the gas enters the metering chamber and the equilibrium pressure pd is evaluated. The Vadd-valve is opened afterwards,
followed by a pressure compensation and the measurement of the adjusted equilibrium pressure pcd. The measuring system is brought back to ambient pressure at the end of the measuring cycle. Automatic repeated measurements may be done afterwards respectively the metering chamber may be opened and the sample extracted. - GLP compliance:
- not specified
- Type of method:
- pycnometer method
- Specific details on test material used for the study:
- Köstrolith (X Zeolite), Lot 2006090001
- Key result
- Type:
- relative density
- Density:
- 2.42 g/cm³
- Temp.:
- 20 °C
- Conclusions:
- The density measured by gas pycnometry was 2.42 g/cm³.
- Executive summary:
Density measurement by helium pycnometry (according to DIN 66137-2) was performed on Köstrolith zeolite.
Referenceopen allclose all
Description of key information
The relative density measured by gas pycnometry was between 2.19 and 2.47 g/cm³.
Key value for chemical safety assessment
Additional information
The relative density measured by gas pycnometry was between 2.19 (type A zeolite) and 2.47 (type Y zeolite) g/cm³.
The highest bulk density of around 390 kg/m³ was determined with a type X zeolite, whereas a type Y zeolite showed the lowest one that amounted to 289 kg/m³.
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