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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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 corrosion: in vitro / ex vivo
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2017

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 431 (In Vitro Skin Corrosion: Reconstructed Human Epidermis (RHE) Test Method)
GLP compliance:
yes

Test material

Constituent 1
Chemical structure
Reference substance name:
Silicic acid (H4SiO4), zinc salt (1:2), manganese-doped
EC Number:
271-896-0
EC Name:
Silicic acid (H4SiO4), zinc salt (1:2), manganese-doped
Cas Number:
68611-47-2
Molecular formula:
Zn2SiO4:Mn
IUPAC Name:
Silicic Acid (H4SiO4), Zinc Salt (1: 2), Manganese-Doped

In vitro test system

Test system:
human skin model
Source species:
human
Vehicle:
water
Control samples:
yes, concurrent negative control
yes, concurrent vehicle
yes, concurrent positive control
Amount/concentration applied:
TEST MATERIAL
- Amount(s) applied :
20 mg solid test substance

VEHICLE
- 20 μl sterile ddH2O

NEGATIVE CONTROL
- 40 μl sterile ddH2O

POSITIVE CONTROL
- 40 μ KOH, 8N (11.3 g KOH in 25 ml of sterile ddH2O)
Duration of treatment / exposure:
3 min and 1 hour
Number of replicates:
2

Results and discussion

In vitro

Resultsopen allclose all
Irritation / corrosion parameter:
% tissue viability
Run / experiment:
3 min
Value:
104.12
Vehicle controls validity:
valid
Negative controls validity:
valid
Positive controls validity:
valid
Remarks on result:
other: non corrosive
Irritation / corrosion parameter:
% tissue viability
Run / experiment:
60 min
Value:
110.43
Vehicle controls validity:
valid
Negative controls validity:
valid
Positive controls validity:
valid
Remarks on result:
other: non corrosive

Applicant's summary and conclusion

Interpretation of results:
other: non corrosive