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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
eye irritation: 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 492 (Reconstructed Human Cornea-like Epithelium (RhCE) Test Method for Identifying Chemicals Not Requiring Classification and Labelling for Eye Irritation or Serious Eye Damage)
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

Test animals / tissue source

Species:
other: Reconstructed Human Cornea-like epithelium (RHCE)

Test system

Vehicle:
unchanged (no vehicle)
Controls:
yes, concurrent positive control
yes, concurrent negative control
Duration of treatment / exposure:
6 h
Duration of post- treatment incubation (in vitro):
30 min

Results and discussion

In vitro

Results
Irritation parameter:
other: viability
Value:
101.16
Negative controls validity:
valid
Remarks:
100
Positive controls validity:
valid
Remarks:
39.12
Remarks on result:
no indication of irritation

Applicant's summary and conclusion

Interpretation of results:
other: non irritant