(3-chloropropyl)dimethoxymethylsilane

Viscosity

Link to relevant study record(s)

Reference

Endpoint:

viscosity

Type of information:

experimental study

Adequacy of study:

key study

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

guideline study with acceptable restrictions

Qualifier:

according to guideline

Guideline:

other: Ubbelohde

Principles of method if other than guideline:

The determination of the kinematic viscosity was carried out by the capillary method with a viscosimeter according to Ubbelohde.

For a specific liquid volume of the test item the flow time is measured through a capillary under the influence of gravity. The measurement is carried out at a specific temperature. The results are given in mm2/s.

The method is applicable to liquids with a kinematic viscosity between approx. 0.5 and 10^5 mm2/s

GLP compliance:

no

Type of method:

capillary viscometer (static)

Key result

Temp.:

20°C

Parameter:

kinematic viscosity (in mm²/s)

Value:

1.294

Temperature	20°C	40°C
1^st run	399.98	295.67
2^nd run	400.94	295.69
3^rd run	399.74	295.69
4^th run	399.73	295.70
5^th run	399.76	295.71
Mean value of flow time [s]	400.030	295.692
Hagenbach correction [s]	0.408	0.747
Corrected flow time [s]	399.622	294.945
Viscosimeter constant [mm2/s2]	0.003239	0.003239
Kinematic viscosity [mm2/s]	1.2944	0.9553

Conclusions:

A kinematic viscosity of 1.2944 at 20°C was determined using the capillary method in accordance with Ubbelonhde. This result is considered to be reliable.

Description of key information

Viscosity: 1.2944 mm²/s at 20°C (Capillary method)

Key value for chemical safety assessment

Viscosity:

1.294 mm²/s (static)

at the temperature of:

20 °C

Additional information

A kinematic viscosity of 1.2944 at 20°C was determined for the substance using the capillary method (Ubbelonhde). The result is considered to be reliable and is selected as key study.

 

The key result is supported by a predicted kinematic viscosity value of 1.6 mm²/s at 20°C which was determined for the substance using a validated QSAR estimation method.

 

In available secondary sources to which reliability could not be assigned, viscosity values of 1.4 mPa·s (dynamic) at 20°C and 1.2 mPa·s (dynamic) at 25°C were reported for the substance.