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Diss Factsheets

Administrative data

Endpoint:
viscosity
Type of information:
experimental study
Adequacy of study:
key study
Study period:
27 Jul 1999
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
comparable to guideline study with acceptable restrictions

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1999
Report date:
1999

Materials and methods

Test guideline
Qualifier:
equivalent or similar to guideline
Guideline:
ASTM D-2983 (Standard Test Method for Low-Temperature Viscosity of Lubricants Measured by Brookfield Viscometer)
GLP compliance:
no
Type of method:
rotational viscometer (dynamic)

Test material

Constituent 1
Chemical structure
Reference substance name:
1-BUTANESULFONAMIDE, 1,1,2,2,3,3,4,4,4-NONAFLUORO-N-METHYL-
EC Number:
614-396-3
Cas Number:
68298-12-4
Molecular formula:
C5H4F9NO2S
IUPAC Name:
1-BUTANESULFONAMIDE, 1,1,2,2,3,3,4,4,4-NONAFLUORO-N-METHYL-
Specific details on test material used for the study:
SOURCE OF TEST MATERIAL
- Source and lot/batch number of test material: F-11877 Lot 2

Results and discussion

Viscosity
Temp.:
other: 45 °C
Parameter:
dynamic viscosity (in mPa s)
Value:
6.86

Any other information on results incl. tables

Viscosity is given by the equation Vcp = exp[2637 .7 / (T(°C) + 273.15) - 6.385]

Equation valid from melting point to 100 °C.

 Temperature (°C)  Speed (RPM)  Viscosity (mPa.s)
 45.0  60  6.90
 45.0  30  6.81
 45.0  12  6.96
 65.0  60  4.07
 65.0  30  3.94
 85.0  60  2.65
 85.0  30  2.62
 100.0  60  2.04
 100.0  30  2.00

Applicant's summary and conclusion

Conclusions:
The viscosity of molten MeFBSA was 6.86 mPa.s (centipoise) at 45°C
Executive summary:

Viscosity of molten MeFBSA was determine over the range of 45 - 100 °C using a Brookfield rotational viscometer. Viscosity was independent of shear rate from 12-60 RPM. No guideline was cited, but the instrumental method generally follows ASTM D-2983. Study details were limited. Therefore, the study is considered reliable with restrictions.