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Physical & Chemical properties

Viscosity

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Endpoint:
viscosity
Type of information:
experimental study
Adequacy of study:
weight of evidence
Study period:
January / February 2014 (determinations at 50°C); October 2014 (determination at 40°C)
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: standard test method without detailed documentation
Qualifier:
according to
Guideline:
other: ASTM D445
Deviations:
not specified
GLP compliance:
no
Remarks:
However, the laboratory was compliant with ISO 9001:2008 and ISO/IEC 17025:2005.
Type of method:
capillary viscometer (static)
Key result
Temp.:
other: 50.0°C
Parameter:
kinematic viscosity (in mm²/s)
Value:
3.35
Remarks on result:
other: arithmetic mean of four determinations
Conclusions:
kinematic viscosity at 50ºC= 3.35 mm2/s
Executive summary:

The viscosity of the test material Octadecane has been determined to be 3.35 mm²/s at 50°C (arithmetic mean of four determinations), using ASTM method D445.

Endpoint:
viscosity
Type of information:
experimental study
Adequacy of study:
weight of evidence
Study period:
2010
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: national standard test method without detailed documentation
Qualifier:
according to
Guideline:
other: ISO 3104
Deviations:
no
Qualifier:
equivalent or similar to
Guideline:
other: ASTM D445 – 03
Deviations:
no
GLP compliance:
no
Remarks:
Not specified
Type of method:
capillary viscometer (static)
Key result
Temp.:
20°C
Parameter:
kinematic viscosity (in mm²/s)
Value:
4.03
Conclusions:
kinematic viscosity = 4.03 mm2/s (at 20°C)
Executive summary:

The kinematic viscosity of octadecane, measured at 20°C following the ISO 3104 method is 4.03 mm2/s.

Description of key information

- kinematic viscosity at 20°C = 4.03 mm2/s (ISO 3104)

- kinematic viscosity at 50°C = 3.35 mm2/s (ASTM D445)

Key value for chemical safety assessment

Viscosity:
4.03 mm²/s (static)
at the temperature of:
20 °C

Additional information

The kinematic viscosity of octadecane at 20°C, measured according to ISO 3104 method, is 4.03 mm2/s. The reliability of this determination at 20°C may be scientifically substantiated by taking into account the result of a (quadruplicate) determination of the viscosity at 50°C, using ASTM method D445: 3.35 mm2/s.