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Density

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Reference
Endpoint:
relative density
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2012-04-18
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
OECD Guideline 109 (Density of Liquids and Solids)
Version / remarks:
1995
Deviations:
no
Qualifier:
according to
Guideline:
EU Method A.3 (Relative Density)
Version / remarks:
2008
Deviations:
no
GLP compliance:
no
Type of method:
air comparison pycnometer (for solids)
Type:
relative density
Density:
2.06 g/cm³
Temp.:
20 °C
Remarks on result:
other: relative density: 2.06

Results of the measurement of the density of the test item

Test No.  Temperature [°C] Test item chamber size Reference vessel No. Weight in of test item [g] Density [g/cm³]* 
 1  20  Small (25.62 cm³)  76 (21.35 cm³)  7.06 2.05107
 2  20  Small (25.62 cm³)  76 (21.35 cm³)  7.34 2.06002 

*The pressurizing-expansion cycles are performed until 5 subsequent volume measurements have a relative standard deviation (RSD) >0.02 %.

The mean density of the test item at 20 °C is 2.05555 g/cm³ (SD = 0.0063, RSD = 0.31%). The relative density D420 is calculated by dividing the density of the test item by the density of water at 4 °C (0.9999750 g/cm³).

The relative density is D420= 2.06

Conclusions:
According to OECD Test Guideline 109 (1995) and Regulation (EC) 440/2008 Part A method A.3., the relative density D4/20 of Vanadium oxide sulphate pentahydrate at 20 °C ± 0.01 °C (compared to water at 4 °C) is D420 = 2.06

Description of key information

The relative density of vanadium oxide sulphate pentahydrate at 20 °C  is 2.06.

Key value for chemical safety assessment

Relative density at 20C:
2.06

Additional information