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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:
2018-01-03 to 2018-01-04
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)
Qualifier:
according to guideline
Guideline:
OECD Guideline 109 (Density of Liquids and Solids)
GLP compliance:
yes (incl. QA statement)
Type of method:
pycnometer method

Test material

Constituent 1
Reference substance name:
Fatty acids, C14-18 and C16-18-unsatd., ammonium salts
EC Number:
271-685-3
EC Name:
Fatty acids, C14-18 and C16-18-unsatd., ammonium salts
Cas Number:
68604-33-1
Molecular formula:
C14H28O2.H3N / C16H32O2.H3N / C18H36O2.H3N / C18H34O2.H3N / C18H32O2.H3N / C18H30O2.H3N / C16H30O2.H3N .
IUPAC Name:
Fatty acids, C14-18 and C16-18-unsatd., ammonium salts
Test material form:
other: paste-like
Details on test material:
Test Substance Name: Fatty acids, C14-18 and C16-18-unsatd., ammonium salts.
Product Name/Synonym: Ammonium Oleate.
CAS number: 68604-33-1.
EG number: 271-685-3.
Batch Number: 2017-30 2022-30 04.
Purity of this sample/batch: 85.3% (contains 14.7% water).
Description: Yellow-brown paste.
Expiry date: KW30 2022 (July 2022).

Results and discussion

Densityopen allclose all
Key result
Type:
density
Density:
905 kg/m³
Temp.:
20 °C
Remarks on result:
other: Mean Result
Type:
density
Density:
901 kg/m³
Temp.:
20 °C
Remarks on result:
other: 1st measurement
Type:
density
Density:
909 kg/m³
Temp.:
20 °C
Remarks on result:
other: 2nd measurement
Type:
relative density
Density:
0.905
Temp.:
20 °C
Remarks on result:
other: mean of 2 runs

Any other information on results incl. tables

Table 1: Determining the Density of the Immersion Liquid (IL):

Mass of Empty Pycnometer (g) 24.07 Volume of Pycnometer (ml) 25.3
Mass water & Pycnometer (g) 49.34 Density of Water (g/cm3) (ρW,t) 0.998
Mass of IL & Pycnometer (g) 48.44 Mass IL in Pycnometer (g) (m1) 24.36
Calculated Density of IL (g/cm3) 0.963 Density of IL (kg/m3) 963

Equation 1 (Calculation for the density of water): Mass of water / volume of pycnometer = Density of water .

Equation 2 (Calculation for the density of immersion liquid): ρIL = m1/mW x ρW,t .

Where : m1 is the mass of the immersion liquid, mW is the mass of water, ρW,t is the density of water at temperature t.

Table 2 : Determining the Density of the Sample:

Run Number 1 2
Mass of Empty Pycnometer (g) 24.07 24.07
Mass of Sample & Pycnometer (g) 39.83 39.51
Mass of Sample added to empty Pycnometer (g) ms 15.76 15.44
Mass of Sample, Pycnometer & immersion liquid 47.35 47.53
Mass of immersion liquid added (g) m2 7.52 8.02
Calculated Density of Sample (g/cm3) 0.901 0.909
Density of Sample (kg/m3) 901 909

Mean Result (kg.m-3): 905.

Equation 3 (Calculation for the density of the sample): ρS,t = ms * ρIL /(m1 – m2) .

Where: ms is the mass, in grams, of the sample; m1 is the mass, in grams, of immersion liquid required to fill the empty pycnometer; m2 is the mass, in grams of immersion liquid added to fill the pycnometer containing the sample; ρIL is the density of the immersion liquid (as determined by equation 2).

Applicant's summary and conclusion

Conclusions:
The relative density of the test substance are measured as 0.905 (mean of 2 runs).
Executive summary:

Relative Density (20°C): 0.905 (mean of 2 runs), (905 kg.m-3 @ 20°C).