Registration Dossier

Diss Factsheets

Administrative data

Endpoint:
viscosity
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2007
Report date:
2007

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
OECD Test Guideline 114 (Viscosity of Liquids)
Deviations:
no
Qualifier:
according to guideline
Guideline:
EPA OPPTS 830.7100 (Viscosity)
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
other: Reverse flow viscometer

Test material

Constituent 1
Reference substance name:
Melaleuca alternifolia, ext.
EC Number:
285-377-1
EC Name:
Melaleuca alternifolia, ext.
Cas Number:
85085-48-9
Molecular formula:
Not applicable (a generic molecular formula cannot be provided for this specific UVCB substance).
IUPAC Name:
Essential oil of melaleuca alternifolia
Test material form:
liquid
Specific details on test material used for the study:
- Purity: 100%
- Lot (batch) No.: 1215
- Expiration date of the lot: 30 March 2009
- Storage condition of test material: Room temperature, protected from light.

Results and discussion

Viscosityopen allclose all
Key result
Temp.:
20°C
Parameter:
kinematic viscosity (in mm²/s)
Value:
2.864
Remarks on result:
other: Time of flow (s)
Remarks:
258.0
Key result
Temp.:
20°C
Parameter:
kinematic viscosity (in mm²/s)
Value:
2.855
Remarks on result:
other: Time of flow (s)
Remarks:
257.2
Key result
Temp.:
20°C
Parameter:
kinematic viscosity (in mm²/s)
Value:
2.846
Remarks on result:
other: Time of flow (s)
Remarks:
256.4
Key result
Temp.:
20°C
Parameter:
dynamic viscosity (in mPa s)
Value:
2.549
Remarks on result:
other: Time of flow (s)
Remarks:
258.0
Key result
Temp.:
20°C
Parameter:
dynamic viscosity (in mPa s)
Value:
2.541
Remarks on result:
other: Time of flow (s)
Remarks:
257.2
Key result
Temp.:
20°C
Parameter:
dynamic viscosity (in mPa s)
Value:
2.533
Remarks on result:
other: Time of flow (s)
Remarks:
2.564
Key result
Temp.:
40°C
Parameter:
kinematic viscosity (in mm²/s)
Value:
1.712
Remarks on result:
other: Time of flow (s)
Remarks:
648.8
Key result
Temp.:
40°C
Parameter:
kinematic viscosity (in mm²/s)
Value:
1.713
Remarks on result:
other: Time of flow (s)
Remarks:
649.4
Key result
Temp.:
40°C
Parameter:
kinematic viscosity (in mm²/s)
Value:
1.704
Remarks on result:
other: Time of flow (s)
Remarks:
645.8
Key result
Temp.:
40°C
Parameter:
dynamic viscosity (in mPa s)
Value:
1.523
Remarks on result:
other: Time of flow (s)
Remarks:
648.8
Key result
Temp.:
40°C
Parameter:
dynamic viscosity (in mPa s)
Value:
1.525
Remarks on result:
other: Time of flow (s)
Remarks:
649.4
Key result
Temp.:
40°C
Parameter:
dynamic viscosity (in mPa s)
Value:
1.516
Remarks on result:
other: Time of flow (s)
Remarks:
645.8

Any other information on results incl. tables

The kinematic viscosity of Tea Tree Oil was found to be 2.86 mm2/s at 20°C and 1.71 mm2/s at 40°C.

The dynamic viscosity of Tea Tree Oil was found to be 2.54 mPa/s at 20°C and 1.52 mPa/s at 40°C.

Applicant's summary and conclusion

Conclusions:
The kinematic viscosity of Tea Tree Oil was found to be 2.86 mm2/s at 20°C and 1.71 mm2/s at 40°C.
The dynamic viscosity of Tea Tree Oil was found to be 2.54 mPa/s at 20°C and 1.52 mPa/s at 40°C.
Kinematic viscosity data meet CLP criteria for classification of Tea tree oil as an aspiration hazard, Asp. Tox. 1 (H304: May be fatal if swallowed and enters airways).
Executive summary:

A GLP-compliant study was conducted in accordance with OECD Method 114 to determine the viscosity of Tea Tree Oil in triplicate at 20°C and 40°C using a reverse flow viscometer.

The dynamic viscosity of Tea tree oil was found to be 2.54 mPa/s at 20°C and 1.52 mPa/s at 40°C. Kinematic viscosity was 2.86 mm2/s at 20°C and 1.71 mm2/s at 40°C.

The kinematic viscosity data meet CLP criteria for classification of Tea tree oil as an aspiration hazard, Asp. Tox. 1 (H304: May be fatal if swallowed and enters airways).