Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
acute toxicity: oral
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2003-05-13 to 2003-07-28
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Remarks:
Well documented, scientifically sound study that was conducted in accordance to GLP and OECD Guideline 423; limit test.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2003
Report date:
2003

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 423 (Acute Oral toxicity - Acute Toxic Class Method)
Deviations:
no
GLP compliance:
yes

Test material

Constituent 1
Chemical structure
Reference substance name:
Tungsten oxide
EC Number:
254-413-8
EC Name:
Tungsten oxide
Cas Number:
39318-18-8
Molecular formula:
WOn (n=2.99 to 2.90)
IUPAC Name:
tungsten(6+) trioxidandiide
Details on test material:
- Name of test material (as cited in study report): Tungsten oxide blue
- Molecular formula (if other than submission substance): WO
- Physical state: Blue to black powder
- Analytical purity: 99.9%
- Purity test date: 2003-04-15
- Stability under test conditions: 5 years
- Storage condition of test material: Ambient temperature
- Other: Solubility in water- 118 mg/L at 20 degrees C
- pH: 6.9

Results and discussion

Effect levels
Dose descriptor:
LD50
Effect level:
> 2 000 mg/kg bw
Remarks on result:
other: No severe toxic effects were present after a single dose of 2000 mg/kg of the test substance.

Applicant's summary and conclusion

Conclusions:
No severe toxic effects of tungsten oxide were noted by signs in life and post mortem. No mortality occurred. An LD50 of > 2000 mg/kg body weight for rats was established for the test substance.