Registration Dossier
Registration Dossier
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EC number: 232-055-3 | CAS number: 7784-25-0
Viscosity
Administrative data
- Endpoint:
- viscosity
- Type of information:
- experimental study
- Adequacy of study:
- other information
- Reliability:
- 4 (not assignable)
- Rationale for reliability incl. deficiencies:
- other: Insufficient experimental details.
Cross-referenceopen allclose all
- Reason / purpose for cross-reference:
- reference to same study
- Reason / purpose for cross-reference:
- reference to other study
Data source
Reference
- Reference Type:
- publication
- Title:
- Ammonium aluminium sulfate (ammonium alum)-water-alcohol systems. Composition, density, and viscosity of saturated solutions.
- Author:
- Mullin J.W., Sipek M.
- Year:
- 1 982
- Bibliographic source:
- Journal of Chemical and Engineering data 1983, 27,181-183
Materials and methods
- Type of method:
- capillary viscometer (static)
Test material
- Reference substance name:
- Aluminium ammonium bis(sulphate)
- EC Number:
- 232-055-3
- EC Name:
- Aluminium ammonium bis(sulphate)
- Cas Number:
- 7784-25-0
- Molecular formula:
- Al.H3N.2H2O4S
- IUPAC Name:
- aluminium ammonium bis(sulphate)
Constituent 1
Results and discussion
Viscosityopen allclose all
- Temp.:
- 20°C
- Parameter:
- dynamic viscosity (in mPa s)
- Value:
- 1.369
- Remarks on result:
- other: saturated solution (9.993g/100g = 104.6 g/L)
- Temp.:
- other: 30.0°C
- Parameter:
- dynamic viscosity (in mPa s)
- Value:
- 1.203
- Remarks on result:
- other: saturated solution (13.801g/100g = 146.5 g/L)
- Temp.:
- 40°C
- Parameter:
- dynamic viscosity (in mPa s)
- Value:
- 1.095
- Remarks on result:
- other: saturated solution (18.878g/100g = 204.3 g/L)
Applicant's summary and conclusion
- Conclusions:
- Results are close to the viscosity of water (about 1 mPa.s at 20°C).
- Executive summary:
Mullin and Sipek determined experimentally the viscosity of saturated solutions of ammonium alum (hydrate) by capillary (Ostwald) method. The results were respectively 1.3686, 1.2030 and 1.0954 mPa.s at 20, 30 and 40°C. Validity could not be assigned due to lack of experimental details.
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