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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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
Study period:
2014
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: The study performed with scientific authoritative method, insufficient methodology and experimental details provided but result is reliable (consistent, plausible)

Data source

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

Materials and methods

Principles of method if other than guideline:
The measurement was performed according to DIN EN ISO 787-9.
GLP compliance:
yes

Test material

Constituent 1
Chemical structure
Reference substance name:
Hydrogen [29H,31H-phthalocyaninesulphonato(3-)-N29,N30,N31,N32]cuprate(1-)
EC Number:
249-300-5
EC Name:
Hydrogen [29H,31H-phthalocyaninesulphonato(3-)-N29,N30,N31,N32]cuprate(1-)
Cas Number:
28901-96-4
Molecular formula:
C32H15CuN8O3S.H
IUPAC Name:
Hydrogen [29H,31H-phthalocyaninesulphonato(3-)-N29,N30,N31,N32]cuprate(1-)
Test material form:
solid: particulate/powder
Remarks:
migrated information: powder
Details on test material:
- Substance type: organic
- Physical state: solid
- Lot/batch no: 130001/RA gemahlen

Results and discussion

pH valueopen allclose all
pH value:
2.3
Temp.:
20 °C
Concentration:
1 other: % w/w
pH value:
3.3
Temp.:
20 °C
Concentration:
10 other: % w/w

Applicant's summary and conclusion

Conclusions:
The pH values of test substance were ddetermined to be as follows:
pH= 2.3 of 1%w/w at 20°C
pH= 3.3 of 10% w/w at 20°C