1,2-Heptanediol

Viscosity

Link to relevant study record(s)

Reference

Endpoint:

viscosity

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2021-01-27

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

OECD Test Guideline 114 (Viscosity of Liquids)

Version / remarks:

2012

Deviations:

no

GLP compliance:

no

Type of method:

capillary viscometer (static)

Key result

Temp.:

20°C

Parameter:

kinematic viscosity (in mm²/s)

Value:

110

Temp.:

40°C

Parameter:

kinematic viscosity (in mm²/s)

Value:

33.6

Results of the measurements at a temperature of (20 ± 0.1) °C with a capillary constant of 0.315123 mm²/s²

Test series No.	Mean rundowntime / s	Standard deviation / s	Kinematic viscosity / mm²/s
1	349.4	< 0.1	110.1
2	349.0	< 0.1	110.0
Mean	-	-	110

 

Results of the measurements at a temperature of (40 ± 0.1) °C with a capillary constant of 0.315123 mm²/s²

Test series No.	Mean rundowntime / s	Standard deviation / s	Kinematic viscosity / mm²/s
1	106.4	< 0.1	33.54
2	106.5	< 0.1	33.58
Mean	-	-	33.6

Conclusions:

The kinematic viscosity of the test item was determined to be 110 mm²/s at 20 °C.

Executive summary:

The kinematic viscosity of the test item was determined according to OECD Test Guideline 114, using an ubbelohde viscosimeter. The liquid flowed under gravity through the capillary and the times when the liquid surface reached the start and stop marks were detected. Two test series of 3 measurements, respectively, at temperatures of 20 °C and 40 °C were performed. The kinematic viscosity of the test item was determined to be 110 mm²/s and 33.6 mm²/s at temperatures of (20 ± 0.1) °C and (40 ± 0.1) °C, respectively.

Description of key information

The kinematic viscosity of the test item was determined to be 110 mm²/s at 20 °C.

Key value for chemical safety assessment

Viscosity:

110 mm²/s (static)

at the temperature of:

20 °C

Additional information

The kinematic viscosity of the test item was determined according to OECD Test Guideline 114, using an ubbelohde viscosimeter. The liquid flowed under gravity through the capillary and the times when the liquid surface reached the start and stop marks were detected. Two test series of 3 measurements, respectively, at temperatures of 20 °C and 40 °C were performed. The kinematic viscosity of the test item was determined to be 110 mm²/s and 33.6 mm²/s at temperatures of (20 ± 0.1) °C and (40 ± 0.1) °C, respectively.