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Physical & Chemical properties


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Administrative data

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Type of information:
experimental study
read-across from supporting substace (analogue or surrogate)
Adequacy of study:
key study
Study period:
From April 16,2010 to April 16,2010
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Well described GLP compliant study conducted to recognized international test guidelines
according to guideline
OECD Test Guideline 114 (Viscosity of Liquids)
GLP compliance:
Type of method:
rotational viscometer (dynamic)
Specific details on test material used for the study:
Fatty acids, C6-24 and C6-24-unsatd., Me esters, distn. residues- Physical state: black , brown semisolid- Analytical purity:100% - Storage condition of test material: room temperature- Solubility: < 10% in water, soluble in acetone, hexane and dichloromethane
dynamic viscosity (in mPa s)
ca. 37
Rotational viscosimeter Brookfield LVDV I+ 
System check (20°C)
Spindl n° 63
Rotation speed 20 rpm
Reference oil, certified 3052 mPa x s
Reference oil, measurement 3072
Sample measurament (20°C)
Spindl n° 61
Sample , measurament 1 (50 rpm) 36.7 mPa x s
36.8 mPa x s
Sample , measurament 2 (100 rpm) 37.0 mPa x s
37.1 mPa x s
Average dynamic viscosity (20 °C) 37.0 mPa x s
The dynamic viscosity η of the test item was determined to Dynamic Viscosity η (20 °C): 37 mPa x s
Executive summary:

Viscosity of the test item was determined according to OECD Guideline 114. Dynamic Viscosity n was determined at 20 °C by using the Rotational viscometer.

Description of key information

η (20 °C)= 37 mPa  x s

Key value for chemical safety assessment

37 mPa · s (dynamic)
at the temperature of:
20 °C

Additional information

The dynamic viscosity η of the test itemwas determined to Dynamic Viscosity η (20 °C)= 37 mPa x s