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Physical & Chemical properties

pH

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Administrative data

Endpoint:
pH
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Conclusive study conducted under GLP; Relevant and adequate for this endpoint
Cross-reference
Reason / purpose for cross-reference:
reference to same study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2015
Report date:
2015

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: OECD TG 105 (1995) and EU A.6 (Commission Regulation (EC) No 440/2008)
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Remarks:
Statement of compliance in accordance with Directive 2004/9/EC, Department of Health of the Government of the U.K., 12 September 2014, inspection date 12 to 14 March 2014

Test material

Constituent 1
Reference substance name:
Automatically generated during migration to IUCLID 6, no data available
IUPAC Name:
Automatically generated during migration to IUCLID 6, no data available
Test material form:
other: Light brown solid

Results and discussion

pH valueopen allclose all
pH value:
>= 3.5 - <= 3.8
Temp.:
20 °C
Concentration:
0.1 g/L
Remarks on result:
other: Loading rate exceeding solubility
pH value:
>= 2.8 - <= 3.1
Temp.:
20 °C
Concentration:
1 g/L
Remarks on result:
other: Loading rate exceeding solubility
pH value:
>= 2.5 - <= 3.5
Temp.:
20 °C
Concentration:
10 g/L
Remarks on result:
other: Loading rate exceeding solubility

Applicant's summary and conclusion

Conclusions:
Filtrated loadings of 0.1 to 10 g/L showed pH 2.5 to 3.8.
Executive summary:

In a water solubility study the pH was found to range from 3.5 to 3.8, from 2.8 to 3.1 and from 2.5 to 3.5 at loadings of 0.10, 1 and 10 g/L, respectively. These loadings seemingly exceed the water solubility.