Registration Dossier

Physical & Chemical properties

Additional physico-chemical information

Administrative data

Endpoint:
additional physico-chemical information
Type of information:
read-across based on grouping of substances (category approach)
Adequacy of study:
supporting study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
data from handbook or collection of data

Data source

Referenceopen allclose all

Reference Type:
review article or handbook
Title:
Environmental properties and safety assessment of organic phosphonates used for detergent and water treatment applications. Handbook of Environmental Chemistry
Author:
Gledhill W E, Feijtel T C J
Year:
1992
Bibliographic source:
The Handbook of Environmental Chemistry, Vol. 3, Part F, Hutzinger, O. Ed., Springer-Verlag, Berlin
Reference Type:
review article or handbook
Title:
Unnamed
Year:
1968

Materials and methods

Test material

Reference
Name:
Unnamed
Type:
Constituent
Test material form:
not specified
Details on test material:
Substance name as cited in the report: HEDP-xNa

Results and discussion

Results:
Memo: A wide range of stability constants for the association of the substance with metal ions is available. These all show high values, suggesting that in the environment the substance will be associated with ions such as calcium and magnesium.

Any other information on results incl. tables

In order of complexation strength, values of the log10 of
the stability constants of representative metals with HEDP are:
                  Cu        18.7
                  Co        17.3
                  Hg        16.9
                  Zn        16.7
                  Cd        15.8
                  Ni        15.8
                  Ca        6.8
                  Mg        6.2

Applicant's summary and conclusion