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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Skin irritation / corrosion

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Administrative data

Endpoint:
skin irritation: in vivo
Type of information:
experimental study
Adequacy of study:
supporting study
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
abstract
Justification for type of information:
A scientific review, data insufficient for assesment.

Data source

Reference
Reference Type:
review article or handbook
Title:
Final Report on the Safety Assessment of Sodium Metaphosphate, Sodium Trimetaphosphate, and Sodium Hexametaphosphate
Author:
Reviewed by the Cosmetic Ingredient Review Expert Panel.
Year:
2001
Bibliographic source:
International Journal of Toxicology, p 75-89.

Materials and methods

Principles of method if other than guideline:
Standard Draize dermal irritation assay.
GLP compliance:
not specified

Test material

Constituent 1
Chemical structure
Reference substance name:
Sodium metaphosphate
EC Number:
233-343-1
EC Name:
Sodium metaphosphate
Cas Number:
10124-56-8
Molecular formula:
Na6O18P6
IUPAC Name:
hexasodium 2,4,6,8,10,12-hexaoxocyclohexaphosphoxane-2,4,6,8,10,12-hexakis(olate)

Test animals

Species:
rabbit
Strain:
not specified

Results and discussion

In vivo

Results
Remarks on result:
other: All rabbits of this group had erythema and edema scores of 4 (severe) for both intact and abraded skin sites at 24 and 72 hours

Any other information on results incl. tables

All rabbits of this group had erythema and edema scores of 4 (severe) for both intact and abraded skin sites at 24 and 72 hours.

Applicant's summary and conclusion

Interpretation of results:
study cannot be used for classification
Conclusions:
All rabbits of this group had erythema and edema scores of 4 (severe) for both intact and abraded skin sites at 24 and 72 hours.
Executive summary:

Sodium Hexametaphosphate (concentration not specifed) had the maximum primary irritation index (PII) score of 8.0 in the standard Draize dermal irritation assay using six rabbits. All rabbits of this group had erythema and edema scores of 4 (severe) for both intact and abraded skin sites at 24 and 72 hours.

Information poorly documented, insuficient for classification.