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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Administrative data

Endpoint:
relative density
Remarks:
Other density types indicated (migrated information): density
Type of information:
experimental study
Adequacy of study:
key study
Study period:
02 March 2015-19 June 2015
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: GLP-compliant study in accordance with EC A.3, OECD 109 and EPA OPPTS 830.7300.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2015
Report date:
2015

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
EU Method A.3 (Relative Density)
Version / remarks:
(2008)
Deviations:
no
Qualifier:
according to guideline
Guideline:
OECD Guideline 109 (Density of Liquids and Solids)
Version / remarks:
(2012)
Deviations:
no
Qualifier:
according to guideline
Guideline:
EPA OPPTS 830.7300 (Density / Relative Density / Bulk Density)
Version / remarks:
(2002)
Deviations:
no
GLP compliance:
yes
Type of method:
pycnometer method

Test material

Constituent 1
Chemical structure
Reference substance name:
3-[3-(1,1,1,3,5,5,5-heptamethyltrisiloxan-3-yl)propoxy]propane-1,2-diol
EC Number:
807-413-2
Cas Number:
70280-68-1
Molecular formula:
C13H34O5Si3
IUPAC Name:
3-[3-(1,1,1,3,5,5,5-heptamethyltrisiloxan-3-yl)propoxy]propane-1,2-diol
Test material form:
other: liquid
Details on test material:
- Name (as cited in study report): X-22-1927
- Appearance: clear light yellow liquid
- Storage conditions: at room temperature

Results and discussion

Densityopen allclose all
Type:
density
Density:
0.97 g/cm³
Temp.:
20 °C
Remarks on result:
other: Accuracy: < 0.01 g/cm3
Type:
relative density
Density:
0.97
Temp.:
20 °C

Any other information on results incl. tables

Table: Volume of the pycnometer

 

Test 1

Test 2

Mean

 

 

 

 

Mass empty pycnometer (A)

30.4746 g

30.4745 g

30.4746 g

Mass pycnometer with water (B)

40.1145 g

40.1114 g

 

 

 

 

 

Volume of the pycnometer (V)

9.6573 cm3

9.6543 cm3

9.6558 cm3

 

 

 

 

 

Table: Density of the test substance

 

Test 1

Test 2

Mean

 

 

 

 

Mass pycnometer with test substance (C)

39.8447 g

39.8411 g

 

 

 

 

 

Density

0.9704 g/cm3

0.9700 g/cm3

0.970 g/cm3

 

 

 

 

 

Applicant's summary and conclusion

Conclusions:
In a GLP-compliant study in accordance with EC A.3, OECD 109 and EPA OPPTS 830.7300 using a volume pycnometer, the relative density of the substance at 20°C has been determined as 0.970.