Ethanaminium, N-[4-[[4-(diethylamino)phenyl][4-(ethylamino)-1-naphthalenyl]methylene]-2,5-cyclohexadien-1-ylidene]-N-ethyl-, molybdatetungstatephosphate

Density

Link to relevant study record(s)

Reference

Endpoint:

relative density

Type of information:

experimental study

Adequacy of study:

key study

Study period:

09/ 04/ 2015

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

study well documented, meets generally accepted scientific principles, acceptable for assessment

Qualifier:

no guideline followed

Principles of method if other than guideline:

- Principle of test: Powder density (and volume) is determined by the use of a fully-automatic gas displacement pycnometer.

- Short description of test conditions:
Tare the empty sample cup
Fill the sample cup to at least 2/3 of the cup capacity with sample and record the weight
Insert the filled sample cup into the cell chamber and close the cell chamber
Start the analysis
Gas pycnometer from Micromeritics AccuPyc 1330, Model: 133/34010/00, S/N: 3814
Helium gas cylinder from Air Liquide (Alphagaz 1 quality), purity 99.999%
Analytical balance with reading accuracy of at least ±0.1mg from Mettler Toledo, Model
AE2005, S/N: J62549

- Parameters analysed / observed: Average volume and density recorded

GLP compliance:

no

Type of method:

pycnometer method

Specific details on test material used for the study:

SOURCE OF TEST MATERIAL
- Source and lot/batch No.of test material: 0154N/ 981108

Key result

Type:

relative density

Remarks:

average

Density:

2.003 g/cm³

Temp.:

25.1 °C

Average density: 2.0034 g/cm3

Conclusions:

Average density: 2.0034 g/cm3

Key value for chemical safety assessment

Relative density at 20C:

2.003