Triethoxy(2,4,4-trimethylpentyl)silane

Viscosity

Link to relevant study record(s)

Reference

Endpoint:

viscosity

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2015-07-14

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

guideline study with acceptable restrictions

Remarks:

The study was conducted according to a relevant test method and in accordance with a recognised quality system

Qualifier:

according to guideline

Guideline:

DIN 51562 Part 1 (Viscometry - Measurement of kinematic viscosity by means of the Ubbelohde viscometer - Part 1: Viscometer specification and measurement procedure)

GLP compliance:

no

Other quality assurance:

other: ISO 9001:2008

Type of method:

capillary viscometer (static)

Key result

Temp.:

20°C

Parameter:

kinematic viscosity (in mm²/s)

Value:

1.98

The viscosity results are shown below:

Test 1:

Capillary tube: I

Correction factor 0.009665

Measured time [s]					Mean value [s]
206	206	206	205	206	206

 Calculation: Viscosity [mm²/s] = time (mean value) x correction factor = 1.9910

Test 2:

Capillary tube: I

Correction factor 0.009678

Measured time [s]					Mean value [s]
204	204	204	204	204	204

Calculation: Viscosity [mm²/s] = time (mean value) x correction factor = 1.9743

Mean viscosity = 1.98 mm²/s at 20°C

 

Conclusions:

A viscosity value of 1.98 mm2/s at 20°C was determined for the substance using a relevant test method. The result is considered to be reliable.

Description of key information

Viscosity: 1.98 mm2/s at 20°C (DIN 51562)

Key value for chemical safety assessment

Viscosity:

1.98 mm²/s (static)

at the temperature of:

20 °C

Additional information

A measured kinematic viscosity value of 1.98 mm²/s at 20°C was determined for the substance using a relevant test method and in compliance with a known quality system (ISO 9001:2008). The result is considered to be reliable and is selected as key study. The key study is supported by a predicted kinematic viscosity value of 2 mm²/s at 20°C which was determined for the substance using a validated QSAR estimation method.

In secondary sources to which reliability could not be assigned, viscosity value of 1.9 mm²/s at 20 and 25°C was reported for the substance.