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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Toxicological information

Sensitisation data (human)

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Administrative data

Endpoint:
sensitisation data (humans)
Type of information:
experimental study
Adequacy of study:
key study
Study period:
Publication date - 07 September 1984.
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
study well documented, meets generally accepted scientific principles, acceptable for assessment

Data source

Reference
Reference Type:
publication
Title:
Unnamed
Year:
1985
Report date:
1985

Materials and methods

Type of sensitisation studied:
skin
Study type:
study with volunteers
Test guideline
Qualifier:
no guideline followed
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
disodium;hexafluorosilicon(2-)
Cas Number:
16893-85-9
Molecular formula:
Na2SiF6
IUPAC Name:
disodium;hexafluorosilicon(2-)
Specific details on test material used for the study:
Test material: Sodium hexafluorosilicate

Method

Type of population:
not specified
Route of administration:
dermal
Details on study design:
The substance (2% aq.) and water were used, applied 3 times a day on the forearm. The observations were carried out after 48 and 96 hours the applications.

Results and discussion

Results of examinations:
The test was negative after 48 as well as 96 hours. At the 48 hour observation, slight itching and barely visible papules were seen with subjects treated with water.

Applicant's summary and conclusion

Conclusions:
Sodium hexafluorosilicate substance (2% aq.) was found to be negative in the scratch testing at 48 and 96 hours.
Executive summary:

Scratch testing with the sodium hexafluorosilicate substance (2% aq.) and water was carried out, in which the applications were done 3 times a day on the forearm. The observations were carried out after 48 and 96 hours the applications. The test was negative after 48 as well as 96 hours with sodium hexafluorosilicate. At the 48 hour observation, slight itching and barely visible papules were seen with subjects treated with water.