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Description of key information

Viscosity: 6.3 mm²/s (kinematic) at 20°C (QSAR).

Key value for chemical safety assessment

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

Additional information

There are no reliable measured viscosity data for 2,4,6,8-tetramethyl-2,4,6,8-tetravinylcyclotetrasiloxane. A kinematic viscosity of 6.3 mm²/s at 20°C was determined for the substance using a validated QSAR estimation method. The result is considered to be reliable.

2,4,6,8,10 -Pentamethyl-2,4,6,8,10-pentavinylcyclopentasiloxane Vi5-D5 (CAS No: 17704-22-2; impurity 1) and 2,4,6-trimethyl-2,4,6-trivinylcyclotrisiloxane Vi3-D3 (CAS no: 3901-77-7; impurity 2) may be present as impurities. Predicted kinematic viscosity values of approximately 15 mm2/s and 2.1 mm2/s at 20°C were determined for Vi5 -D5 and Vi3 -D3, respectively using a validated QSAR estimation method.