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EC number: 205-861-8 | CAS number: 156-62-7
- 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
Particle size distribution (Granulometry)
Administrative data
Link to relevant study record(s)
- Endpoint:
- particle size distribution (granulometry)
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 1991
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- guideline study without detailed documentation
- Qualifier:
- no guideline followed
- Principles of method if other than guideline:
- dry sieve analysis
- GLP compliance:
- not specified
- Type of method:
- sieving
- Type of particle tested:
- primary particle
- Type of distribution:
- volumetric distribution
- Key result
- Percentile:
- D50
- Mean:
- ca. 40 µm
- Remarks on result:
- other: Standard deviation not available.
- No.:
- #1
- Size:
- < 355 µm
- Distribution:
- 99 %
- No.:
- #2
- Size:
- < 200 µm
- Distribution:
- 93 %
- No.:
- #3
- Size:
- < 125 µm
- Distribution:
- 81 %
- No.:
- #4
- Size:
- < 71 µm
- Distribution:
- 66 %
- No.:
- #5
- Size:
- < 63 µm
- Distribution:
- 63 %
- No.:
- #6
- Size:
- < 51 µm
- Distribution:
- 56 %
- No.:
- #7
- Size:
- < 32 µm
- Distribution:
- 43 %
- No.:
- #8
- Size:
- < 20 µm
- Distribution:
- 30 %
- Conclusions:
- The mass median diameter of calcium cyanamide, technical grade (Kalkstickstoff hochprozentig) was determined to be 40 µm as measured by dry sieve analysis.
- Executive summary:
The mass mean diameter of calcium cyanamide technical grade was determined using dry sieve analysis. Therefore the about 80 g of the test item was partitioned using a sample splitter. After the defined sieving time the residues on each sieve was determined and the mass median diameter was calculated to be 40 µm.
- Endpoint:
- particle size distribution (granulometry)
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2014-07-01 to 2014-07-04
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Remarks:
- The study is regarded as reliable without restrictions. The study was conducted under GLP equivalent conditions. The study was conducted under supervision of a quality assurance unit which had ensured e.g instrumentation validation, reagent/materials certification, analyst certification and providing standard operating procedures. The study was conducted according to CIPAC guideline. For read across justification please refer to IUCLID section 13.
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- other: CIPAC MT 170 Dry sieve analysis of water dispersible granules dated 1994
- Deviations:
- no
- GLP compliance:
- yes
- Remarks:
- The study was conducted under GLP equivalent conditions.
- Type of method:
- sieving
- Type of particle tested:
- primary particle
- Type of distribution:
- mass based distribution
- Specific details on test material used for the study:
- Sample taken 2014-06-05 in the plant
- Key result
- Percentile:
- D50
- Mean:
- ca. 2.142 mm
- Remarks on result:
- not determinable
- Remarks:
- standard deviation
- No.:
- #1
- Size:
- < 0.16 mm
- Distribution:
- 0.1 %
- No.:
- #2
- Size:
- < 0.315 mm
- Distribution:
- 0.1 %
- No.:
- #3
- Size:
- < 0.5 mm
- Distribution:
- 0.2 %
- No.:
- #4
- Size:
- < 1 mm
- Distribution:
- 1.4 %
- No.:
- #5
- Size:
- < 1.7 mm
- Distribution:
- 23.4 %
- No.:
- #6
- Size:
- < 2.5 mm
- Distribution:
- 71.5 %
- No.:
- #7
- Size:
- < 3.55 mm
- Distribution:
- 99.2 %
- No.:
- #8
- Size:
- > 3.55 mm
- Distribution:
- 100 %
- Conclusions:
- The mass median diameter of PERLKA was determined to be 2.142 mm.
- Executive summary:
A study was conducted equivalent to CIPAC MT 170. The mass mean diameter of the test item was determined using dry sieve analysis. Therefore the about 80 g of the test item PERLKA was partitioned using a sample splitter. After the defined sieving time the residues on each sieve was determined and the mass median diameter was calculated to be 2.142 mm.
Referenceopen allclose all
Mesh size |
Residues Rx |
Sum of residues R∑x |
0.160 |
0.1 |
0.1 |
0.315 |
< 0.1 |
0.1 |
0.500 |
0.1 |
0.2 |
1.000 |
1.2 |
1.4 |
1.700 |
22.0 |
23.4 |
2.500 |
48.1 |
71.5 |
3.500 |
27.7 |
99.2 |
>3.500 |
0.8 |
100 |
Ma = 1.700 mm
Mb = 2.500 mm
Ra = 23.4 %
Rb = 71.5 %
Median = 2.142 mm
Description of key information
The mass median diameter of Calcium cyanamide, technical grade (Kalkstickstoff)
was determined to be 40 µm as measured by dry sieve analysis.
The mass median diameter of PERLKA (Formulation of Calcium cyanamide)
was determined to be 2.142 mm as measured by dry sieve analysis.
Additional information
Calcium cyanamide, technical grade
The mass mean diameter of the registered substance was determined using dry sieve analysis. Therefore about 80 g of the test item was partitioned using a sample splitter. After the defined sieving time the residues on each sieve was determined and the mass median diameter was calculated to be 40 µm.
Calcium cyanamide, PERLKA formulation
A study was conducted equivalent to CIPAC MT 170. The mass mean diameter of the test item (Fromulation with calcium cyanamide technical grade) was determined using dry sieve analysis. Therefore the about 80 g of the test item PERLKA was partitioned using a sample splitter. After the defined sieving time the residues on each sieve was determined and the mass median diameter was calculated to be 2.142 mm.
Conclusion
In a technical process the powder calcium cyanamide will be formulated into commercial product PERLKA. Due to this formulation process the particle size of calcium cyanamide will changed. The form of the substance changed from powder to granulate. It was shown that in the commercial product PERLKA the mass median diameter is greater than in the technical product calcium cyanamide. Thus, for industrial application the particle size of calcium cyanamide, technical grade (Kalkstickstoff) and for professional and consumer application the particle size of PERLKA will be used in risk 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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