Xanthylium, 3,6-bis(diethylamino)-9-[2-(ethoxycarbonyl)phenyl]-, molybdatetungstatephosphate

Density

Link to relevant study record(s)

Reference

Endpoint:

relative density

Type of information:

experimental study

Adequacy of study:

key study

Study period:

06 June 2012 - 06 June 2012

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

Method:
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

Apparatus:
- 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

GLP compliance:

not specified

Type of method:

pycnometer method

Specific details on test material used for the study:

Product code: 0245F
Product batch / lot: 280PE310516

Key result

Type:

relative density

Density:

2.257 g/cm³

Temp.:

27.4 °C

Sample weight: 1.9833 g

Temperature: 27.4°C

Number of Purges: 10

Cell Volume: 12.1224 cm^3

Equilibrium Rate: 0.1000 psi g / min

Expansion Volume: 9.3330 cm^3

Conclusions:

Powder density (and volume) is determined by the use of a fully-automatic gas displacement
pycnometer. Average Density of seven measurements was 2.2575 g/cm^3 ± 0.0014 g/cm^3.

Key value for chemical safety assessment

Relative density at 20C:

2.257