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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:
2010-01-26 through 2010-02-18
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: GLP Guideline Study
Qualifier:
according to guideline
Guideline:
OECD Guideline 109 (Density of Liquids and Solids)
Deviations:
no
Qualifier:
according to guideline
Guideline:
EU Method A.3 (Relative Density)
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Remarks:
signed 2008-06-17
Type of method:
air comparison pycnometer (for solids)
Type:
relative density
Density:
3.87
Temp.:
22.3 °C

Mean density ρPR for the two test series: 3.8738 g/cm³

Relative density (compared to water at 4°C) D4R: 3.87

Individual results.

1st run Density
1. measurement 3.8647
2. measurement 3.8726
3. measurement 3.8794
mean (1st run): 3.8694
2nd run
1. measurement 3.8746
2. measurement 3.8787
3. measurement 3.8810
mean (2nd run): 3.8781
Conclusions:
Relative density (compared to water at 4°C) D4R: 3.87

Description of key information

The relative density of diarsenic trioxide is 3.87, as determined experimentally (gas comparison pycnometer method, OECD 109 study, GLP).

Key value for chemical safety assessment

Relative density at 20C:
3.87

Additional information