Registration Dossier

Administrative data

Endpoint:
tap density
Type of information:
experimental study
Adequacy of study:
key study
Study period:
Reported 19Jan2018
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 guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 109 (Density of Liquids and Solids)
Deviations:
not specified
GLP compliance:
no
Other quality assurance:
other: ISO9001
Type of method:
pour and tap (for solids)

Test material

Constituent 1
Chemical structure
Reference substance name:
7-hydroxy-N,N,N-trimethylnaphthalen-2-aminium methyl sulfate
Cas Number:
377734-55-9
Molecular formula:
C14H19NO5S
IUPAC Name:
7-hydroxy-N,N,N-trimethylnaphthalen-2-aminium methyl sulfate
Test material form:
solid: particulate/powder

Results and discussion

Density
Key result
Type:
tap density
Density:
0.75 g/cm³
Temp.:
20 °C

Any other information on results incl. tables

A 100ml measuring cylinder was placed on a top pan balance, sample was added until the volume

was 100ml. The weight of sample was 67.89g.

The measuring cylinder was then tapped 50 times. The volume after this was 90ml.

Relative density = 0.75 g/cm3

Applicant's summary and conclusion

Conclusions:
The relative density of (7-Hydroxy-2-naphthyl)-trimethylammonium methyl sulphate was mesure to be density = 0.75 g/cm3
Executive summary:

A 100ml measuring cylinder was placed on a top pan balance, sample was added until the volume

was 100ml. The weight of sample was 67.89g. The measuring cylinder was then tapped 50 times. The volume after this was 90ml.

Relative density = 0.75 g/cm3