Registration Dossier
Registration Dossier
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EC number: 241-034-8 | CAS number: 16961-83-4
Viscosity
Administrative data
Link to relevant study record(s)
- Endpoint:
- viscosity
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Secondary source
- Qualifier:
- according to guideline
- Guideline:
- other: not reported
- Principles of method if other than guideline:
- No methodological details are reported
- GLP compliance:
- not specified
- Remarks:
- : secondary source
- Type of method:
- other: no details
- Temp.:
- 20°C
- Parameter:
- other: cps
- Value:
- 6.5
- Conclusions:
- The viscosity of 23% aqeuous solution of hexafluorosilicic acid is reported to be 6.5 cps at 20 degrees Celsius.
- Executive summary:
The viscosity of 23% aqeuous solution of hexafluorosilicic acid is reported to be63.5 cps at 20 degrees Celsius.
- Endpoint:
- viscosity
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: Modern proprietary study
- Qualifier:
- no guideline followed
- Principles of method if other than guideline:
- The analytical procedure was carried out using a Bohlin CS50 Rheometer equipped with external temperature control.
- GLP compliance:
- no
- Type of method:
- rotational viscometer (dynamic)
- Temp.:
- other: 24.1°C
- Parameter:
- dynamic viscosity (in mPa s)
- Value:
- 11
- Conclusions:
- The viscosity at 10 Pa was found to be 0.011Pas or 11cps.
- Executive summary:
The viscosity of a 10% aqeuous solution of hexafluorsilicic acid at 10 Pa was found to be 0.011Pas or 11cps.
Referenceopen allclose all
The viscosity of 23% aqeuous solution of hexafluorosilicic acid is reported to be 6.5 cps at 20 degrees Celsius.
The sample exhibited pseudoplastic (shear thinning) behaviour with a decrease in viscosity observed on the return curve. The viscosity at 10 Pa was found to be 0.011Pas or 11cps.
Description of key information
The viscosity of a 10% aqeuous solution of hexafluorsilicic acid at 10 Pa was found to be 0.011Pas or 11cps. The viscosity of 23% aqueous solution of hexafluorosilicic acid is reported to be 6.5 cps at 20 degrees Celsius.
Key value for chemical safety assessment
- Viscosity:
- 6.5 mPa · s (dynamic)
- at the temperature of:
- 20 °C
Additional information
The viscosity of a 10% aqeuous solution of hexafluorsilicic acid at 10 Pa was found to be 0.011Pas or 11cps (REACH Centre, 2010). The viscosity of 23% aqeuous solution of hexafluorosilicic acid is reported to be 6.5 cps at 20 degrees Celsius (ATSDR).
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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