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Diss Factsheets

Physical & Chemical properties

Density

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Reference
Endpoint:
density, other
Remarks:
density
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
OECD Guideline 109 (Density of Liquids and Solids)
Principles of method if other than guideline:
Helium pycnometry experiments were conducted with an AccuPyc 1330 so that 5 repeat measurements agreed to within a tolerance of 0.01% of the total cell volume
GLP compliance:
no
Other quality assurance:
ISO/IEC 17025 (General requirements for the competence of testing and calibration laboratories)
Type of method:
pycnometer method
Specific details on test material used for the study:
Chemical Name Hexadecyl dihydrogen phosphate
Other Name 1-Hexadecanol, 1-(dihydrogen phosphate)
Commercial Name Cola Fax CPE
Physical State Solid
CAS # 3539-43-3
EC # 222-581-1
Manufacturer Colonial Chemical, Inc.
Batch# / Lot # Batch 57826G17
Received on January 2, 2018
Tested on February 28, 2018
Key result
Type:
density
Density:
1.141 g/cm³
Remarks on result:
other: temperature of measurement was not specified.

Five repeat measurements of helium gas expansion were performed to evaluate the volume occupied by the sample. The volume of hexadecyl dihydrogen phosphate was evaluated to be 0.2855 cm3. Since the sample weight used was 0.3258 grams, the density was evaluated to be 1.1412 g/cm3.

The helium pycnometry measurement reflects the density of the solid portion of the material excluding the pores and therefore has units of grams of solid per volume of solid assuming no closed porosity. As such, it is equal to the skeletal density of the material.

Conclusions:
The sample density of hexadecyl dihydrogen phosphate was measured to be 1.1412 g/cm3 with a standard deviation of 0.0005 g/cm3 from 5 sequential measurements.

Description of key information

The sample density of hexadecyl dihydrogen phosphate was measured to be 1.1412 g/cm3 with a standard deviation of 0.0005 g/cm3 from 5 sequential measurements.

Key value for chemical safety assessment

Relative density at 20C:
1.141

Additional information