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Viscosity

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Reference
Endpoint:
viscosity
Type of information:
experimental study
Adequacy of study:
key study
Study period:
11 - 12 Aug 2014
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
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
Qualifier:
according to guideline
Guideline:
other: DIN EN ISO 3104
Deviations:
no
Qualifier:
according to guideline
Guideline:
other: CIPAC MT 22
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Remarks:
Hess, Ministerium für Umwelt, Energie, Landwirtschaft und Verbraucherschutz, Wiesbaden, Germany
Type of method:
capillary viscometer (static)
Temp.:
20°C
Parameter:
kinematic viscosity (in mm²/s)
Value:
28.6
Temp.:
40°C
Parameter:
kinematic viscosity (in mm²/s)
Value:
10.8

Two test series of 3 measurements each at temperatures of 20 °C and 40 °C were performed.The test results of the measurements are presented in the following tables.

Table1: Results of the measurements at a temperature of 20 °C

Measure-ment
no.

Rundown-time /
s

Mean time /
s

Standard deviation /
s

Capillary constant / mm²/s²

Kinematic viscosity /
mm²/s

Remark

1

987.76

987.81

0.12

0.028951

28.60

-

2

987.78

-

3

987.98

-

Table2: Results of the measurements at a temperature of 40 °C

Measure-ment
no.

Rundown-time /
s

Mean time /
s

Standard deviation /
s

Capillary constant / mm²/s²

Kinematic viscosity /
mm²/s

Remark

1

374.45

373.97

0.46

0.028951

10.83

-

2

373.54

-

3

373.91

-

Conclusions:
The kinematic viscosity of the test item Triethylene tetramine (TETA), linear, cyclic and branched was determined at temperatures of 20°C and 40°C according to OECD Test Guideline 114 (2012) Viscosity of Liquids. The results are presented in the following table.

Table 3: Results of the viscosity via capillary viscometer
Temperature (°C) Kinematic viscosity (mm²/s)
20 28.6
40 10.8
Executive summary:

The kinematic viscosity of the test itemTriethylene tetramine(TETA), linear, cyclic and branchedwas determined at temperatures of 20°C and 40°C according to OECD Test Guideline 114 (2012) Viscosity of Liquids. The results are presented in the following table.

 

Table3:Results of the viscosityviacapillary viscometer

Temperature (°C)

Kinematic viscosity (mm²/s)

20

28.6

40

10.8

Description of key information

Viscosity = 28.6 mm²/s at 20 °C (OECD Guideline 114)

Key value for chemical safety assessment

Viscosity:
28.6 mm²/s (static)
at the temperature of:
20 °C

Additional information

The viscosity of the test substance was also determined at 40 °C = 10.8 mm²/s.