Registration Dossier
Registration Dossier
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EC number: 234-919-5 | CAS number: 12040-43-6
PBT assessment
Administrative data
PBT assessment: overall result
- Name:
- Silicic acid, aluminium magnesium sodium salt, CAS-No. 12040-43-6
- Type of composition:
- legal entity composition of the substance
- State / form:
- solid: nanoform
- Related composition:
- Silicic acid, aluminium magnesium sodium salt, CAS-No. 12040-43-6
- Reference substance:
- Silicic acid, aluminium magnesium sodium salt, CAS-No. 12040-43-6
- Reference substance:
- Silicic acid, aluminium magnesium sodium salt, CAS-No. 12040-43-6
- Type of information reported:
- single nanoform
- Name of nanoform:
- Silicic acid, aluminium magnesium sodium salt (SMAS), precipitated
- Shape category:
- spheroidal
- Shape:
- other: 3-dimensional branched fractal aggregates
- Pure shape:
- yes
- Typical composition:
- >= 99 %
- Range:
- >= 99 - <= 100 %
- Shape category:
- spheroidal
- Remarks:
- 3-dimensional branched fractal aggregates.
- Percentile:
- D10
- Typical value:
- 66 μm
- Range:
- >= 63 - <= 125 μm
- Percentile:
- D50
- Typical value:
- 92 μm
- Range:
- >= 63 - <= 125 μm
- Percentile:
- D90
- Typical value:
- 119 μm
- Range:
- >= 63 - <= 125 μm
- Additional information:
- The particle forming mechanism for each manufacturing process starts with the formation of liquid nuclei that grow to constituent particles that coagulate to aggregates and solidify. Constituent particles are therefore spherical in nature while aggregates (and agglomerates) show a high fractal structure.
- Fraction of constituent particles in the size range 1-100 nm:
- > 50 - <= 100 %
- Structure:
- amorphous
- Name:
- amorphous
- Pure structure:
- yes
- Range:
- > 99.7 - <= 100 %
- Description:
- not crystalline according to TEM and XRD, see sections 1.4 and 4.5
- Typical specific surface area:
- 57.9 m²/g
- Range of specific surface area:
- >= 55 - <= 115 m²/g
- Surface treatment applied:
- no
- PBT status:
- PBT assessment does not apply
- Justification:
The PBT and vPvB criteria of Annex XIII to REACH Regulation (EC) No 1907/2006 shall not be applied to inorganic substances.
Reference
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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