Registration Dossier

Administrative data

Endpoint:
pH
Type of information:
experimental study
Adequacy of study:
supporting study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
study well documented, meets generally accepted scientific principles, acceptable for assessment

Data source

Reference
Reference Type:
other company data
Title:
Unnamed
Year:
2010
Report Date:
2010

Materials and methods

Principles of method if other than guideline:
pH-measurements (10g/l) taken in the laboratory for solutions of pure, crystalline HEDP with increasing stoichometric amounts of the corresponding base (NaOH).
GLP compliance:
not specified

Test material

Reference
Name:
Unnamed
Type:
Constituent
Test material form:
solid: crystalline

Results and discussion

pH valueopen allclose all
pH value:
2.5
Concentration:
10 g/L
Remarks on result:
other: Stoichiometric loading of base equivalent to HEDP-1Na
pH value:
4.6
Concentration:
10 g/L
Remarks on result:
other: Stoichiometric loading of base equivalent to HEDP-2Na
pH value:
10.4
Concentration:
10 g/L
Remarks on result:
other: Stoichiometric loading of base equivalent to HEDP-3Na
pH value:
11.7
Concentration:
10 g/L
Remarks on result:
other: Stoichiometric loading of base equivalent to HEDP-4Na

Applicant's summary and conclusion

Conclusions:
Company data are available for pH of stoichiometric solutions of salts.