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Physical & Chemical properties

Viscosity

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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:
reference to same study
Reason / purpose:
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:
1982
Bibliographic source:
Journal of Chemical and Engineering data 1983, 27,181-183

Materials and methods

Type of method:
capillary viscometer (static)

Test material

Reference
Name:
Unnamed
Type:
Constituent

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.