Methylsilanetriyl triacetate

Density

Link to relevant study record(s)

Reference

Reference 1

Endpoint:

density, other

Type of information:

(Q)SAR

Adequacy of study:

weight of evidence

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

results derived from a valid (Q)SAR model and falling into its applicability domain, with adequate and reliable documentation / justification

Justification for type of information:

See attached QMRF/QPRF

Principles of method if other than guideline:

The result was obtained using an appropriate QSAR method (see attached QMRF and QPRF for details).

The model for density has been developed for, and applies specifically to, organosilicon compounds. It is a multiple linear regression based model with descriptors representing counts of different atoms and groups that may be present in the molecule.

Key result

Type:

density

Density:

1.04 g/cm³

Temp.:

20 °C

Conclusions:

A density value of 1.04 g/cm3 at 20°C has been determined for the substance using an appropriate estimation method. The result is considered reliable.

Reference 2

Endpoint:

relative density

Type of information:

other: Data obtained from a secondary source

Adequacy of study:

weight of evidence

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

data from handbook or collection of data

Principles of method if other than guideline:

Information on test guideline not stated

GLP compliance:

not specified

Type of method:

other: Densimeter

Key result

Type:

relative density

Density:

1.17 other: Unitless

Temp.:

20 °C

Conclusions:

A relative density value of 1.17 at 20°C was reported for the substance in a secondary source which has been subject to peer review and in which the original sources are traceable. The result is considered reliable.

Description of key information

Relative density: 1.17 at 20°C

Key value for chemical safety assessment

Relative density at 20C:

1.17

Additional information

A relative density value of 1.17 at 20°C was reported for the substance in a secondary source which has been subject to peer review and in which the original sources are traceable. Also, a density value of 1.04 g/cm³ at 20°C was determined for the substance using a validated QSAR estimation method. The two results are in reasonable agreement and are used as weight of evidence.

In another source to which reliability could not be assigned, the substance was reported to have a density value of approximately 1.168 g/cm³ and specific gravity of 1.16. No information on temperature was stated.