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Viscosity

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Reference
Endpoint:
viscosity
Type of information:
experimental study
Adequacy of study:
key study
Study period:
From February 6 to March 14, 2012.
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Remarks:
Test method according to OECD Guideline 114 (PN-EN ISO 3104). GLP study.
Qualifier:
according to guideline
Guideline:
OECD Test Guideline 114 (Viscosity of Liquids)
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
capillary viscometer (static)
Key result
Temp.:
20°C
Parameter:
kinematic viscosity (in mm²/s)
Value:
7.885
Key result
Temp.:
40°C
Parameter:
kinematic viscosity (in mm²/s)
Value:
4.367

The results of viscosity determination at 20°C:

 

Test No.

 

Test temperature

 

 

Flow time

t

The difference of flow time of two consecutive measurements

 

Viscosity

ν

The difference between any and average viscosityt

[°C]

[ s ]

%

mm2/s

[% ]

1

20.00

271.42

0.06

7.8820

0.03

2

20.00

271.59

7.8870

0.03

Average

7.8845

-

The results of viscosity determination at 40°C:

 

Test No.

 

Test temperature

 

 

Flow time

t

The difference of flow time of two consecutive measurements

 

Viscosity

ν

The difference between any and average viscosityt

[°C]

[ s ]

%

mm2/s

[% ]

1

40.00

432.95

0.12

4.3641

0.06

2

40.00

433.43

4.3690

0.06

Average

4.3666

-

Conclusions:
The determined average kinematic viscosity of the Diacetoxydi-tert-butoxysilane at 20°C temperature was 7.8845 mm2/s and at 40 ºC was 4.3666 mm2/s.
Executive summary:

The determination of viscosity of test item Diacetoxydi-tert-butoxysilane was performed according to OECD Guideline 114 (PN-EN ISO 3104) with a Ubelohde capillary viscometer. The determined average kinematic viscosity of the Diacetoxydi-tert-butoxysilane at 20°C temperature was 7.8845 mm2/s and at 40 ºC was 4.3666 mm2/s.

Description of key information

Key study: OECD Guideline 114. GLP study: The determined average kinematic viscosity of the Diacetoxydi-tert-butoxysilane at 20°C temperature was 7.8845 mm2/s and at 40 ºC was 4.3666 mm2/s.

Key value for chemical safety assessment

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

Additional information

Key study: The determination of viscosity of test item Diacetoxydi-tert-butoxysilane was performed according to OECD Guideline 114 (PN-EN ISO 3104) with a Ubelohde capillary viscometer. The determined average kinematic viscosity of the Diacetoxydi-tert-butoxysilane at 20°C temperature was 7.8845 mm2/s and at 40 ºC was 4.3666 mm2/s.

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