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Physical & Chemical properties

Density

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Reference
Endpoint:
relative density
Type of information:
experimental study
Adequacy of study:
key study
Study period:
20 Aug 2013 - 20 Aug 2013
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:
no
Type of method:
pycnometer method
Specific details on test material used for the study:
Product code: 278PE
Product batch / lot: 170903 (batch date 31/08/2017)
Key result
Type:
relative density
Density:
1.93 g/cm³
Temp.:
27.5 °C
Conclusions:
Average density of 6 replicate measuremnets was 1.9298 g/cm^3 with a standard deviation of 0.0008 g/cm^3.

Description of key information

Key value for chemical safety assessment

Relative density at 20C:
1.93

Additional information