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EC number: 207-439-9 | CAS number: 471-34-1
Additional physico-chemical information
Administrative data
- Endpoint:
- other: determination of dustiness
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- test procedure in accordance with generally accepted scientific standards and described in sufficient detail
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 010
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- other: DIN 55992-1:2006 ("Determination of a parameter for the dust formation of pigments and extenders - Part 1: Rotation method")
- Deviations:
- no
- Principles of method if other than guideline:
- Examinations were performed to determine the dustiness of a substance sample designated as "Calcium carbonate bulk (calcite)". The objective of these examinations was to determine the dust fractions of this substance.
- GLP compliance:
- no
Test material
- Reference substance name:
- Calcium carbonate
- EC Number:
- 207-439-9
- EC Name:
- Calcium carbonate
- Cas Number:
- 471-34-1
- Molecular formula:
- CH2O3.Ca
- IUPAC Name:
- calcium carbonate
- Test material form:
- solid: bulk
- Details on test material:
- Name: Calcium carbonate bulk (calcite)
Substance name: Omya Syncarb F0474-GO 52%
CAS/ No: 471-34-1
EINECS No: 207-439-9
Purity: 97,9 %
Batch/Lot No.: F19928
Appearance: white powder
Molecular formula: CaCO3
Molecular weight: 100.09 g/mol
Relative density: 2.93 g/cm³ (handbook of Chemistry and Physics)
Substance humidity: 0.30 % (measured by DMT)
Expiry date/ Stability: 15.04.2010
Storage condition: Keep in the room temperature
Constituent 1
- Specific details on test material used for the study:
- Bulk CaCO3
Results and discussion
- Results:
- Total dustiness [mg/g] = 307.47
Inhalable fraction [mg/g] = 183.26
Thoracic fraction [mg/g] = 54.64
Respirable fraction [mg/g] = 24.81
Any other information on results incl. tables
Table 2: Experimental results
Quantity of substance used [g] |
1 |
Total dust mass in impactor [mg] |
307.47 |
Dust concentration in impactor [mg/m³] |
1535.87 |
Total dustiness [mg/g] |
307.47 |
Inhalable fraction [mg/g] |
183.26 |
Thoracic fraction [mg/g] |
54.64 |
Respirable fraction [mg/g] |
24.81 |
Applicant's summary and conclusion
- Conclusions:
- The dustiness of calcium carbonate (bulk) has been determined as follows:
Total dustiness [mg/g] = 307.47
Inhalable fraction [mg/g] = 183.26
Thoracic fraction [mg/g] = 54.64
Respirable fraction [mg/g] = 24.81
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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