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Physical & Chemical properties

Density

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Administrative data

Endpoint:
relative density
Type of information:
experimental study
Adequacy of study:
key study
Study period:
September 4, 2020 to November 17, 2020
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study with acceptable restrictions

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2020
Report date:
2020

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 109 (Density of Liquids and Solids)
GLP compliance:
not specified
Type of method:
pycnometer method

Test material

Constituent 1
Reference substance name:
Sulfonic acids, C16-alkane hydroxy and C16-alkene, sodium salts
EC Number:
297-664-9
EC Name:
Sulfonic acids, C16-alkane hydroxy and C16-alkene, sodium salts
Cas Number:
93686-15-8
IUPAC Name:
Sulfonic acid, C16-alkane hydroxy and C16-alkene, sodium salts
Test material form:
solid
Remarks:
This solid sample was obtained from the original liquid form by removing water.
Details on test material:
CAS number: 93686-15-8

Results and discussion

Density
Key result
Type:
relative density
Remarks on result:
not determinable because of methodological limitations
Remarks:
We tried to measure the relative density using heptane or liquid paraffin as an immersion liquid, but the air bubbles in the test item could not be completely removed and the test item swelled in solvents.

Any other information on results incl. tables

The measurement of the relative density should be performed with a solvent that does not dissolve the test item.  As the result of preliminary test, heptane and liquid paraffin were confirmed to be poor solvents for the test item.  We tried to measure the relative density using heptane or liquid paraffin as an immersion liquid, but the air bubbles in the test item could not be completely removed and the test item swelled in solvents.  Therefore, it is concluded that the relative density of test item could not be measured.

Applicant's summary and conclusion

Conclusions:
It is concluded that the relative density of the registered substance could not be measured under this test condition.
Executive summary:

-Test guideline


OECD Guidelines for Testing of Chemicals, No. 109, October 2, 2012, "Density of Liquids and Solids: Pycnometer (liquids and solids)"


 


-Results


The measurement of the relative density should be performed with a solvent that does not dissolve the test item.  As the result of preliminary test, heptane and liquid paraffin were confirmed to be poor solvents for the test item.  We tried to measure the relative density using heptane or liquid paraffin as an immersion liquid, but the air bubbles in the test item could not be completely removed and the test item swelled in solvents.  Therefore, it is concluded that the relative density of test item could not be measured.