Registration Dossier

Diss Factsheets

Administrative data

Endpoint:
pH
Type of information:
experimental study
Study period:
From 11 February 2016 to 13 June 2016
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2016
Report date:
2016

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
CIPAC MT 75 (Determination of pH Values)
Version / remarks:
MT 75.3 (2000)
Qualifier:
according to guideline
Guideline:
OECD Guideline 122 (Determination of pH, Acidity and Alkalinity)
Version / remarks:
2013
Qualifier:
according to guideline
Guideline:
EPA OPPTS 830.7000 (pH)
Version / remarks:
1996
GLP compliance:
yes (incl. QA statement)

Test material

Constituent 1
Chemical structure
Reference substance name:
bis((7-isopropyl-1,4a-dimethyl-1,2,3,4.4a.5.6.7.8.9.10.10a-dodecahydrophenanthrene-1-carbonyl)oxy)zinc
EC Number:
810-810-3
Cas Number:
68425-02-5
Molecular formula:
The substance is a UVCB, of which a major component can be represented by the following: [C20H33O2]2Zn
IUPAC Name:
bis((7-isopropyl-1,4a-dimethyl-1,2,3,4.4a.5.6.7.8.9.10.10a-dodecahydrophenanthrene-1-carbonyl)oxy)zinc
Test material form:
solid
Details on test material:
- Appearance: Brown coloured, brittle solid
- Storage condition of test material: At room temperature
- Chemical name: Zinc modified rosinate, hydrogenated zinc rosinate
- CAS No.: 68425-02-5

Reagents

Reagent:
water

Results and discussion

pH value
Key result
pH value:
5.5
Temp.:
21 °C
Concentration:
1 other: % w/v

Any other information on results incl. tables

pH of mixture 1 was 5.451

pH of mixture 2 was 5.526

Mean: 5.5

The 1% (w/v) mixtures of the test item in double distilled water were colourless suspensions with test item observed on top and through of the test solution and on the bottom of the measuring cylinder.

Applicant's summary and conclusion

Conclusions:
The pH of a 1% (w/v) aqueous mixture is 5.5.
Executive summary:

In a GLP study according to CIPAC MT 75.3, OECD 122 and OPPTS 830.7000, the pH of the substance in double distilled water was determined. The pH values of two 1% w/v mixtures were measured obtaining a mean value of 5.5.