Eucalyptus globulus, ext.

Viscosity

Link to relevant study record(s)

Reference

Reference 1

Endpoint:

viscosity

Type of information:

not specified

Adequacy of study:

weight of evidence

Reliability:

4 (not assignable)

Rationale for reliability incl. deficiencies:

documentation insufficient for assessment

Remarks:

Data comes from an online compilation using secondary data sources. There is no experimental study reference, however data is cited in the database as peer reviewed, but as only a qualitative assessment is provided, no reliability was assigned.

Reason / purpose for cross-reference:

reference to same study

Reason / purpose for cross-reference:

reference to other study

Principles of method if other than guideline:

No data.

Remarks on result:

not measured/tested

The substance is described as a colourless, mobile liquid.

Conclusions:

Low viscosity anticipated.

Executive summary:

The HSDB database provides, as secondary source, some physico-chemical properties. No viscosity value is cited, but the substance cineole is described as a mobile liquid.

Reference 2

Endpoint:

viscosity

Type of information:

not specified

Adequacy of study:

weight of evidence

Reliability:

4 (not assignable)

Rationale for reliability incl. deficiencies:

documentation insufficient for assessment

Remarks:

Data comes from an online compilation using secondary data sources. There is no experimental study reference, however data is cited in the database as peer reviewed, but as only a qualitative assessment is provided, no reliability was assigned.

Reason / purpose for cross-reference:

reference to same study

Reason / purpose for cross-reference:

reference to other study

Principles of method if other than guideline:

No data.

Remarks on result:

not measured/tested

The substance is described as a colourless, mobile liquid.

Conclusions:

Low viscosity anticipated.

Executive summary:

The HSDB database provides, as secondary source, some physico-chemical properties. No viscosity value is cited, but the substance alpha-pinene is described as a mobile liquid.

Reference 3

Endpoint:

viscosity

Type of information:

experimental study

Adequacy of study:

key study

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Remarks:

The study has been conducted according to internationally recognised guideline. No deviation is reported. The substance is adequately caracterised. Therefore full validation applies.

Reason / purpose for cross-reference:

reference to same study

Qualifier:

according to guideline

Guideline:

OECD Test Guideline 114 (Viscosity of Liquids)

Version / remarks:

(2012)

GLP compliance:

no

Type of method:

forced ball viscometer (dynamic)

Key result

Temp.:

20°C

Parameter:

dynamic viscosity (in mPa s)

Value:

2.46

Temp.:

40°C

Parameter:

dynamic viscosity (in mPa s)

Value:

1.63

Key result

Temp.:

40°C

Parameter:

kinematic viscosity (in mm²/s)

Value:

1.79

Remarks on result:

other:

Remarks:

calculated

Results of the single determinations with the respective error as well as the mean value and its standard deviation are presented in the following tables:

Results of all Determinations at 20°C

	Experiment 1	Experiment 2	Mean
Determination	Viscosity in mPa*s	Viscosity in mPa*s	Viscosity in mPa*s
1	2.4545	2.4576
2	2.4536	2.4596
3	2.4582	2.4531
Mean	2.4554	2.4568	2.456
SD	0.0024	0.0033	0.001
RSD	0.10%	0.14%	0.04%

 

Results of all Determinations at 40°C

	Experiment 1	Experiment 2	Mean
Determination	Viscosity in mPa*s	Viscosity in mPa*s	Viscosity in mPa*s
1	1.6284	1.6293
2	1.6279	1.6249
3	1.6288	1.6249
Mean	1.6284	1.6263	1.627
sd	0.0005	0.0026	0.001
RSD	0.03%	0.16%	0.09%

 

Detailed findings for duplicate determinations at both temperatures are provided in the experimental report.

Conclusions:

Very fluid liquid.
Potential for Aspiration Hazard.

Executive summary:

The dynamic viscosity of the test substance was measured according to OECD 114/ISO 12058-1 guideline, falling ball method. Six determinations were performed at each temperature, and the mean result was retained, respectively 2.456 mPa.s at 20°C, and 1.627 mPa.s at 40°C.

Reference 4

Endpoint:

viscosity

Type of information:

not specified

Adequacy of study:

weight of evidence

Reliability:

4 (not assignable)

Rationale for reliability incl. deficiencies:

documentation insufficient for assessment

Remarks:

Data comes from an online compilation using secondary data sources. There is no experimental study reference, however data is cited in the database as peer reviewed, but as only a qualitative assessment is provided, no reliability was assigned.

Reason / purpose for cross-reference:

reference to same study

Reason / purpose for cross-reference:

reference to other study

Principles of method if other than guideline:

No data.

Remarks on result:

not measured/tested

The substance is described as a colourless mobile liquid.

Conclusions:

Low viscosity anticipated.

Executive summary:

The HSDB database provides, as secondary source, some physico-chemical properties. No viscosity value is cited, but the substance limonene is described as a mobile liquid.

Description of key information

Very fluid liquid. Expected to be similar for both qualities.

Potential for Aspiration Hazard (ca 1.8 mm2/s at 40°C).

Key value for chemical safety assessment

Viscosity:

2.46 mPa · s (dynamic)

at the temperature of:

20 °C

Additional information

A fully reliable experimental study, conducted according to a recognized EC method and under GLP, is available for the crude quality. It is therefore considered as a key study. The result is retained as key data for purpose of CSA.

Litterature data describes the three major components (cineole, limonene and alpha-pinene) as mobile liquids, and no new reaction between components is anticipated (similar qualitative composition, the main difference being the proportion change between cineol and alpha-pinene). Therefore, no significant difference is anticipated for the rectified quality.

According to Regulation (EC) No.1272/2008 criteria, the derived kinematic viscosity at 40°C is below the threshold value of 20.5 mm²/s, therefore the substance as potential for classification with Aspiration Hazard (H304).