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Viscosity

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Reference
Endpoint:
viscosity
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
OECD Test Guideline 114 (Viscosity of Liquids)
Deviations:
no
GLP compliance:
yes (incl. certificate)
Type of method:
rotational viscometer (dynamic)
Specific details on test material used for the study:
SOURCE OF TEST MATERIAL
- Source and lot/batch No.of test material: CHHYDN0130

OTHER SPECIFICS: Empirical formula: C10H20O
Molecular mass: 156.3 g/mol
Key result
Temp.:
40°C
Parameter:
dynamic viscosity (in mPa s)
Value:
17.36
Key result
Temp.:
40°C
Parameter:
dynamic viscosity (in mPa s)
Value:
17.39

Dynamic viscosity at 40 °C: 17.36 / 17.39 mPa s mean value: 17 mPa s

Conclusions:
The dynamic viscosity of DL-Menthol is 17 mPa*s at 40°C.
Executive summary:

The determination of the dynamic viscosity is based on the following guidelines: DIN 53019, this industry norm corresponds to OECD Guidelines for Testing of Chemicals, Section 1 – Physical-Chemical Properties No. 114 "Viscosity of Liquids" (adopted May 1981).

The dynamic viscosity of DL-Menthol is 17 mPa*s at 40°C.

Description of key information

The dynamic viscosity of DL-Menthol was determined as 17 mPa*s at 40 °C according to DIN 53019, which corresponds to OECD Guidelines for Testing of Chemicals, Section 1 - Physical-Chemical Properties No. 114 "Viscosity of Liquids" (adopted May 1981).

Key value for chemical safety assessment

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

Additional information

The physical state of the substance at room temperature is solid. Nevertheless, the substance is used as hot melt and therefore, the viscosity was determined.

Determination of the viscosity at 20 °C is technically not feasible. At 20 °C DL-Menthol is crystalline solid and has a melting point of 41-43°C. Determination of the viscosity of solids is not possible according to OECD guideline 114. As the substance is used as a liquid above its melting point, a value at 40 °C is presented.