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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
22.02.2021
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2021
Report date:
2021

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
EPA OPPTS 830.7300 (Density / Relative Density / Bulk Density)
Version / remarks:
2002
Deviations:
not specified
Qualifier:
according to guideline
Guideline:
EU Method A.3 (Relative Density)
Deviations:
not specified
Qualifier:
according to guideline
Guideline:
OECD Guideline 109 (Density of Liquids and Solids)
Version / remarks:
2012
Deviations:
not specified
GLP compliance:
no
Type of method:
pycnometer method

Test material

Constituent 1
Chemical structure
Reference substance name:
4-chlorobenzoic acid
EC Number:
200-805-9
EC Name:
4-chlorobenzoic acid
Cas Number:
74-11-3
Molecular formula:
C7H5ClO2
IUPAC Name:
4-chlorobenzoic acid
Test material form:
solid: particulate/powder
Details on test material:
white to yellowish crytalline powder

Results and discussion

Density
Key result
Type:
relative density
Density:
1.524 g/cm³
Temp.:
20 °C

Any other information on results incl. tables

Two tests with different amounts of the test item were performed to determine the relative density D420at a temperature of 20 °C ± 0.01 °C. Table 1 compiles the results.

Table 1:    Results of the measurement of the density of the test item

Test No.

Temperature [°C]

Amount of test item [g]

Average sample volume [cm³]

Density [g/cm³][1]

1

20

9.29551

6.09039

1.52387

2

20

9.28096

6.09713

1.52457

The mean density of the test item at 20 °C is 1.5242 g/cm³. The relative density D420is calculated by dividing the density of the test item by the density of water at 4 °C (0.9999750 g/cm³).

The relative density is          D420=1.524.

Applicant's summary and conclusion

Conclusions:
The relative density of 4-Chlorobenzoic acid is 1.524 as determined via the pycnometer method.
Executive summary:

According to OECD Test Guideline 109 (2012), Regulation (EC) No 440/2008 Method A.3. and EPA OCSPP Test Guideline OPPTS 830.7300 (2002), the Relative Density D420 of the test item para-Chlorobenzoic acid at 20 °C ± 0.01 °C (compared to water at 4 °C) is determined to be:

D420 = 1.524