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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Administrative data

Endpoint:
relative density
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2007-11-08
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: GLP guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2007
Report date:
2007

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 109 (Density of Liquids and Solids)
Deviations:
no
GLP compliance:
yes
Type of method:
air comparison pycnometer (for solids)

Test material

Constituent 1
Chemical structure
Reference substance name:
Molybdenum dioxide
EC Number:
242-637-9
EC Name:
Molybdenum dioxide
Cas Number:
18868-43-4
Molecular formula:
MoO2
IUPAC Name:
dioxomolybdenum
Details on test material:
- Name of test material (as cited in study report): molybdenum dioxide
- Physical state: solid, red-brown powder
- Analytical purity: >99.99%
- Impurities (identity and concentrations):
- Lot/batch No.: D1308 DRO
- Expiration date of the lot/batch: 2010-07-16
- Storage condition of test material: at ambient temperature, dry, well ventilated place
No further details are given.

Results and discussion

Density
Type:
relative density
Density:
6.46
Temp.:
20 °C

Applicant's summary and conclusion

Conclusions:
The results of two measurements of the density for the test substance were: 6.4561 and 6.4566 g/cm3. The mean relative density of molybdenum dioxide was determined to be 6.4564 at 20°C.