Trichloro(propyl)silane

Density

Link to relevant study record(s)

Reference

Endpoint:

relative density

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2015-03-13

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

guideline study with acceptable restrictions

Remarks:

The study was conducted according to an appropriate test method and in compliance with known quality system (ISO 9001:2008)

Qualifier:

according to guideline

Guideline:

OECD Guideline 109 (Density of Liquids and Solids)

Version / remarks:

DIN 51757

Deviations:

no

Qualifier:

according to guideline

Guideline:

EU Method A.3 (Relative Density)

Version / remarks:

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:

1.198 other: Unitless

Temp.:

20 °C

 

Measurement	Density 20°C [g/cm^3]	Relative density D20/4*
Test 1	1.19769	1.19773
Test 2	1.19766	1.19770
Mean value	1.198	1.198

*The relative density D_20/4 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.

 

Check measurement: Density of degassed deionized water at 20°C: 0.99821 g/cm³

Reference value: 0.99820±0.00005 (20°C)

Conclusions:

A relative density of 1.198 at 20°C was obtained for the substance using a relevant test method. The result is considered to be reliable.

Description of key information

Relative density: 1.198 at 20°C (OECD 109)

Key value for chemical safety assessment

Relative density at 20C:

1.198

Additional information

Three reliable density values are available for trichloro(propyl)silane. A measured relative density value of 1.198 at 20°C was determined for the 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.

The key study is supported by density value of 1.195 g/cm³ at 20°C which was reported for the substance in a handbook or collection of reliable data which has been subject to peer-review and in which the original sources are traceable. Also, a predicted density value of 1.19 g/cm³ at 20°C was obtained for the substance using a validated QSAR estimation method. The supporting studies are in agreement with the key study that the density of the substance is greater than 1.

In a secondary source to which reliability could not be assigned, density value of 1.2 g/cm³ at 20°C was reported for the substance.