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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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
Type of information:
experimental study
Adequacy of study:
key study
Study period:
from 31 July 2018 to 13 August 2018
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2018
Report date:
2018

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
EU Method A.3 (Relative Density)
Version / remarks:
2016
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:
m,α-dimethylstyrene
EC Number:
214-394-9
EC Name:
m,α-dimethylstyrene
Cas Number:
1124-20-5
Molecular formula:
C10H12
IUPAC Name:
1-isopropenyl-3-methylbenzene
Constituent 2
Chemical structure
Reference substance name:
p,α-dimethylstyrene
EC Number:
214-795-9
EC Name:
p,α-dimethylstyrene
Cas Number:
1195-32-0
Molecular formula:
C10H12
IUPAC Name:
1-isopropenyl-4-methylbenzene
Test material form:
liquid
Details on test material:
Appearance: Clear colourless liquid
Storage conditions: At room temperature

Dynamic viscosity of test material:
no data

Results and discussion

Densityopen allclose all
Key result
Type:
relative density
Density:
0.9 other: dimensionless
Temp.:
20 °C
Remarks on result:
other: D 20 /4
Type:
density
Density:
0.9 g/cm³
Temp.:
20 °C

Any other information on results incl. tables

Table: Volume of the pycnometer

 

Test 1

Test 2

Mean

Mass empty pycnometer (A)

30.4765 g

30.4762 g

30.4764 g

Mass pycnometer with water (B)

40.1058 g

40.1078 g

 

Volume of the pycnometer

9.6467 cm^3

9.6490 cm^3

9.6479 cm^3

Table: Density of the test item

 

Test 1

Test 2

Mass pycnometer with test item (C)

39.1621 g

39.1641 g

Density [g/cm^3]

0.9003

0.9005

Applicant's summary and conclusion

Conclusions:
The relative density D20/4 of the substance was determined to be 0.900
Executive summary:

The relative density of the liquid substance was determined using the pycnometer method in a GLP study based on EC A.3, OECD 109 and OPPTS 830.7300. A 10 mL volume pycnometer was used. The relative density D20/4 was determined in duplicate at 20°C obtaining a mean value of 0.900.