1,1,5,5,5-hexamethyl-3,3-bis[(trimethylsilyl)oxy]trisiloxane

Density

Link to relevant study record(s)

Reference

Endpoint:

relative density

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2017

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

guideline study without detailed documentation

Qualifier:

according to guideline

Guideline:

OECD Guideline 109 (Density of Liquids and Solids)

GLP compliance:

no

Remarks:

ISO 9001:2008

Type of method:

oscillating densitimeter

Key result

Type:

relative density

Density:

0.877

Temp.:

20 °C

Measurement	Density 20°C [g/cm^3]	Relative density D20/4*
Test 1	0.87716	0.87719
Test 2	0.87717	0.87720
Mean value	0.877	0.877

 

*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 deionized water at 20 °C: 0.99820 g/cm3

                                      Reference value: 0.9982 + 0.0005 (20 °C)

Conclusions:

A relative density of 0.877 was determined in a reliable study conducted according to an appropriate test protocol, and in compliance with ISO 9001:2008. The result is considered to be reliable.

Description of key information

Relative density 0.877 (OECD 109)

Key value for chemical safety assessment

Relative density at 20C:

0.877

Additional information

A measured relative density value of 0.877 at 20 °C was determined for the substance using a photocell detection method 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.