Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
skin irritation: in vivo
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)

Data source

Reference
Reference Type:
other: Body responsible for the test
Title:
Unnamed

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: Directive 84/449/EEC, B.4
GLP compliance:
yes

Test material

Constituent 1
Chemical structure
Reference substance name:
Hexasodium tungstate hydrate
EC Number:
412-770-9
EC Name:
Hexasodium tungstate hydrate
Cas Number:
12141-67-2
Molecular formula:
Na6 H2 W12 O40 . xH2O
IUPAC Name:
hydrate hydrogen oxygen sodium hydride tungsten

Test animals

Species:
rabbit
Strain:
New Zealand White

Test system

Type of coverage:
semiocclusive
Vehicle:
other: moistened with distilled water
Amount / concentration applied:
500 mg
Duration of treatment / exposure:
4 h
Number of animals:
3

Results and discussion

In vivo

Resultsopen allclose all
Irritation parameter:
erythema score
Basis:
animal #1
Time point:
other: overall at 24, 48 and 72 h
Score:
0
Max. score:
0
Irritation parameter:
erythema score
Basis:
animal #2
Time point:
other: overall at 24, 48 and 72 h
Score:
0
Max. score:
0
Irritation parameter:
erythema score
Basis:
animal #3
Time point:
other: overall at 24, 48 and 72 h
Score:
0
Max. score:
0
Irritation parameter:
edema score
Basis:
animal #1
Time point:
other: overall at 24, 48 and 72 h
Score:
0
Max. score:
0
Irritation parameter:
edema score
Basis:
animal #2
Time point:
other: overall at 24, 48 and 72 h
Score:
0
Max. score:
0
Irritation parameter:
edema score
Basis:
animal #3
Time point:
other: overall at 24, 48 and 72 h
Score:
0
Max. score:
0
Irritant / corrosive response data:
Reversibility of any observed effect: changes fully reversible within 1 day.
Other effects:
none

Applicant's summary and conclusion

Interpretation of results:
not classified
Remarks:
Migrated information Criteria used for interpretation of results: EU