Triethoxyoctylsilane

Density

Link to relevant study record(s)

Reference

Endpoint:

relative density

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2012-07-10

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

guideline study with acceptable restrictions

Remarks:

The study was conducted in accordance with OECD 109 and in compliance with a known quality system (ISO 9001:2008).

Qualifier:

according to guideline

Guideline:

OECD Guideline 109 (Density of Liquids and Solids)

Deviations:

no

Qualifier:

according to guideline

Guideline:

EU Method A.3 (Relative Density)

Deviations:

no

Qualifier:

according to guideline

Guideline:

other: DIN 51757

Deviations:

no

GLP compliance:

no

Other quality assurance:

other: ISO 9001:2008

Type of method:

oscillating densitimeter

Key result

Type:

relative density

Density:

0.878 other: unitless

Temp.:

20 °C

Results

Measurement	Density 20°C (g/cm^3)	Relative density D20/4*
Test 1	0.87811	0.87814
Test 2	0.87810	0.87813
Mean value	0.87811	0.87814
Mean value (rounded)		0.878

*The relative density D_20/4is 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.

Check measurement: Density of degassed deionised water at 20°C: 0.99820 g/cm³

Reference value: 0.99820 + 0.00005 (20°C)

Conclusions:

A relative density of 0.878 at 20°C was determined for the substance using a relevant test method. The result is considered to be reliable.

Description of key information

Relative density: 0.878 at 20°C (OECD 109)

Key value for chemical safety assessment

Relative density at 20C:

0.878

Additional information

A measured relative density value of 0.878 at 20°C was determined for the registered substance using an oscillating densimeter in accordance with OECD Test Guideline 109 and in compliance with a known quality system (ISO 9001:2008). The result is considered to be reliable and is selected as key study. This value is supported by a predicted density value of 0.89 g/cm³ at 20°C using a validated QSAR estimation method.

In other secondary sources to which reliability could not be assigned, density values of 0.88 g/cm³ at 20°C and 0.876 g/cm³ at 25°C were reported for the substance.