Registration Dossier
Registration Dossier
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EC number: 231-545-4 | CAS number: 7631-86-9
Density
Administrative data
Link to relevant study record(s)
- Endpoint:
- density, other
- Remarks:
- Skeleton
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2016
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- test procedure in accordance with generally accepted scientific standards and described in sufficient detail
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 109 (Density of Liquids and Solids)
- Version / remarks:
- The method is described in DIN 66137-2/EP 2.9.23
- GLP compliance:
- yes
- Other quality assurance:
- ISO/IEC 17025 (General requirements for the competence of testing and calibration laboratories)
- Type of method:
- air comparison pycnometer (for solids)
- Key result
- Type:
- other: skeleton density
- Density:
- 2.38 g/cm³
- Temp.:
- 20 °C
- Conclusions:
- AEROSIL 200 is of relatively high skeleton density of 2.38 g/cm³
- Endpoint:
- density, other
- Remarks:
- Skeleton
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2016
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- comparable to guideline study
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- OECD Guideline 109 (Density of Liquids and Solids)
- GLP compliance:
- yes
- Type of method:
- air comparison pycnometer (for solids)
- Remarks:
- thermostatic Helium pycnometer
- Specific details on test material used for the study:
- Designation in Test Facility: SYLOID® 244 FP, CAS No. 7631-86-9
Date of Receipt: 15. June 2016
Condition at receipt: closed vessel, in proper conditions - Key result
- Type:
- other: skeleton density
- Density:
- 1.81 g/cm³
- Temp.:
- 20 °C
- Conclusions:
- Syloid 244 FP is of relatively low skeleton density of 1.81 g/cm³
Referenceopen allclose all
Description of key information
Low end Skeleton density is 1.81 g/ml for Syloid 244 FP, a gel type of SAS
High end Skeleton density is 2.38 g/ml for Aerosil 200, a pyrogenic type of SAS.
Similiar to the BET ranges also these density values represent an overall range of the various SAS products.
Lower values down to 1.1 g/ml can be found for colloidal SAS (e.g. Ludox AM). In this case this value refers to the suspension resp. the SAS concentration will drive here the density.
Key value for chemical safety assessment
Additional information
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.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
