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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Toxicity to reproduction: other studies

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Administrative data

Endpoint:
toxicity to reproduction: other studies
Type of information:
experimental study
Adequacy of study:
other information
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Meets generally accepted scientific standards, well documented and acceptable for assessment

Data source

Referenceopen allclose all

Reference Type:
publication
Title:
Safety of the metal scavengers sodium metasilicate and sodium polyphosphate.
Author:
Saiwai K et al.
Year:
1980
Bibliographic source:
Internal Report Toho University
Reference Type:
review article or handbook
Title:
Unnamed
Year:
2004
Report date:
2004

Materials and methods

Principles of method if other than guideline:
Type: other: male and female reproduction organs
GLP compliance:
no
Type of method:
in vivo

Test material

Constituent 1
Chemical structure
Reference substance name:
Disodium metasilicate
EC Number:
229-912-9
EC Name:
Disodium metasilicate
Cas Number:
6834-92-0
Molecular formula:
H2O3Si.2Na Soluble Silicates Category
IUPAC Name:
disodium oxosilanediolate

Test animals

Species:
mouse
Strain:
other: ddy-SLC
Sex:
male/female

Administration / exposure

Route of administration:
oral: drinking water
Vehicle:
water
Analytical verification of doses or concentrations:
no
Duration of treatment / exposure:
3 months
Frequency of treatment:
ad libitum
Duration of test:
3 months
Doses / concentrations
Remarks:
Doses / Concentrations:
300, 900, 2700 ppm (males), 333, 1000, 3000 ppm (females)
Basis:

Control animals:
yes, concurrent vehicle

Results and discussion

Effect levels

open allclose all
Dose descriptor:
NOAEL
Effect level:
> 2 700 ppm
Sex:
male
Dose descriptor:
NOAEL
Effect level:
> 3 000 ppm
Sex:
female

Any other information on results incl. tables

No effects on reproductive organs upon microscopic examination and wet weight determination.

Applicant's summary and conclusion