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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Acute Toxicity: dermal

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Administrative data

Endpoint:
acute toxicity: dermal
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Meets generally accepted scientific asnd national standards, limited documentation, acceptable for assessment
Cross-reference
Reason / purpose for cross-reference:
reference to same study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1978
Report date:
1978

Materials and methods

Test guideline
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 402 (Acute Dermal Toxicity)
Deviations:
yes
Remarks:
24-exposure, abraded and intact skin
GLP compliance:
no
Test type:
standard acute method
Limit test:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
Silicic acid, aluminum sodium salt
EC Number:
215-684-8
EC Name:
Silicic acid, aluminum sodium salt
Cas Number:
1344-00-9
Molecular formula:
nSiO2*mAl2O3*zNa2O n = 2-4; m = 0.12-3.20; z = 0.11-4.5
IUPAC Name:
aluminium(3+) sodium bis(oxosilanebis(olate))
Test material form:
solid: nanoform, no surface treatment
Remarks:
crystalline-free
Specific details on test material used for the study:
Zeolex 23A

Test animals

Species:
rabbit
Strain:
New Zealand White
Sex:
not specified

Administration / exposure

Vehicle:
water
Duration of exposure:
24 h
No. of animals per sex per dose:
4
Control animals:
no
Details on study design:
- Duration of observation period following administration: 14 days
- Frequency of observations and weighing:
- Necropsy of survivors performed: yes
- Other examinations performed: clinical signs, body weight,organ weights

Results and discussion

Effect levelsopen allclose all
Dose descriptor:
LD50
Effect level:
> 5 000 mg/kg bw
Dose descriptor:
LD0
Effect level:
>= 5 000 mg/kg bw
Mortality:
none: 0/16 (0/4 per each dose group)
Clinical signs:
other: no data
Gross pathology:
No pathological findings
Other findings:
Dermal reactions were limited to slight erythema and edema.

Applicant's summary and conclusion