Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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: Experimental test result performed using standard OECD test guidelines

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 122
Principles of method if other than guideline:
A pH meter is essentially a voltmeter with high input impedance which measures the voltage of an electrode sensitive to the hydrogen ion concentration, relative to another electrode which exhibits a constant voltage
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
1,3-isobenzofurandione, reaction products with methylquinoline and quinoline
EC Number:
232-318-2
EC Name:
1,3-isobenzofurandione, reaction products with methylquinoline and quinoline
Cas Number:
8003-22-3
Molecular formula:
C18H11NO2
IUPAC Name:
2-(quinolin-2-yl)-2,3-dihydro-1H-indene-1,3-dione
Constituent 2
Reference substance name:
1,3-isobenzofurandione, reaction products with methylquinoline and quinolone
IUPAC Name:
1,3-isobenzofurandione, reaction products with methylquinoline and quinolone
Test material form:
solid: particulate/powder
Remarks:
migrated information: powder
Details on test material:
- Name of test material (as cited in study report): 1,3-isobenzofurandione, reaction products with methylquinoline and quinolone
- Substance type: Organic
- Physical state: Solid
- Purity: 96.33% (dye content by GC)

Results and discussion

pH value
pH value:
5.3
Temp.:
30.5 °C
Concentration:
1 vol%

Applicant's summary and conclusion

Conclusions:
pH of 1% w/v aqueous solution of the test item1,3-isobenzofurandione, reaction products with methylquinoline and quinoline (CAS No. 8003-22-3) is 5.3 at 30.5°C
Executive summary:

The pH determination of test item1,3-isobenzofurandione, reaction products with methylquinoline and quinoline.. (CAS No. 8003-22-3) was done as per the test guideline OECD 122. The pH of the test solution was determined with the help of pH meter. The pH was found to be 5.3 at 30.5°C. Thus, 1% solution can be considered to be acidic in nature.