Ethoxytrimethylsilane

Density

Link to relevant study record(s)

Reference

Reference 1

Endpoint:

density

Remarks:

density

Type of information:

experimental study

Adequacy of study:

supporting study

Reliability:

4 (not assignable)

Rationale for reliability incl. deficiencies:

documentation insufficient for assessment

Qualifier:

according to guideline

Guideline:

other: DIN51757

GLP compliance:

not specified

Type:

density

Density:

0.75 g/cm³

Temp.:

25 °C

Conclusions:

A density value of 0.75 g/cm³ at 25 °C is reported in secondary literature (MSDS). The original reference was not available for review and no further information is available. The reliability of this result is not assignable.

Reference 2

Endpoint:

relative density

Type of information:

(Q)SAR

Adequacy of study:

supporting study

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:

QSAR prediction

Principles of method if other than guideline:

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

GLP compliance:

no

Type of method:

other: QSAR

Type:

density

Density:

0.87 g/cm³

Temp.:

20 °C

Type:

relative density

Density:

0.87 other: see remarks

Remarks on result:

other: Relative density is dimensionless

Conclusions:

A density value of 0.87 g/cm³ at 20 °C has been obtained for the test substance using an accepted calculation method. The result is considered reliable.

Reference 3

Endpoint:

relative density

Type of information:

experimental study

Adequacy of study:

key study

Study period:

05 Nov 2014

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

guideline study with acceptable restrictions

Qualifier:

according to guideline

Guideline:

EU Method A.3 (Relative Density)

Version / remarks:

1.4.4

Qualifier:

according to guideline

Guideline:

other: DIN 51757

GLP compliance:

no

Type of method:

oscillating densitimeter

Type:

density

Density:

0.758 g/cm³

Temp.:

20 °C

Type:

relative density

Density:

0.758 other: see remarks

Temp.:

20 °C

Remarks on result:

other: Relative density is dimensionless

Results

Measurement	Density at 20 °C (g/cm^3)	Relative density D20^4*
Test 1	0.75769	0.75771
Test 2	0.75772	0.75774
Mean value	0.758	0.758

 

*The relative density D²⁰₄ is the ratio between the measured density of the test substance at 20 °C and the density of water at 4 °C (= 0.99997 g/cm3). The relative density has no dimension.

 

Conclusions:

A relative density density value of 0.758, and a density value of 0.758 g/cm3 at 20 °C was determined in a reliable study conducted according to an appropriate test protocol. It was not compliant with GLP.

Description of key information

Ethoxytrimethylsilane: 0.758 g/cm³ at 20°C (oscillating densitimeter, Method A.3)

Key value for chemical safety assessment

Relative density at 20C:

0.758

Additional information

A relative density value of 0.785 and a density value of 0.758 °C g/cm³ at 20°C were determined by oscillating densitimeter according to EU Method A.3. In a supporting study a density value of 0.87 g/cm³ at 20°C was obtained using an accepted calculation method (QSAR). The result is considered to be reliable. This is supported by a measured value of 0.75 g/cm³ at 25°C.