Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
supporting study
Study period:
2014
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: well performed study according to company guideline

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2014
Report date:
2014

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: company SOP
Principles of method if other than guideline:
determination of the pH with a calibrated pH-electrode
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
8-[bis(2-hydroxyethyl)amino]-12-[(3-methylphenyl)amino]-10-phenyl-5,10λ⁵-diazatetraphen-10-ylium chloride
EC Number:
941-946-2
Molecular formula:
C33H31ClN4O2
IUPAC Name:
8-[bis(2-hydroxyethyl)amino]-12-[(3-methylphenyl)amino]-10-phenyl-5,10λ⁵-diazatetraphen-10-ylium chloride

Results and discussion

pH valueopen allclose all
pH value:
1.6
Temp.:
20 °C
Concentration:
10 other: % (w/w)
Remarks on result:
other: Suspension
pH value:
1.1
Temp.:
40 °C
Concentration:
10 other: % (w/w)
Remarks on result:
other: Suspension

Applicant's summary and conclusion

Conclusions:
The pH of a 10% suspension in water is 1.6 (20°C) rsp. 1.1 (40°C)
Executive summary:

The pH of the substance was measured in a 10% suspension in water with a calibrated pH electrode and was found to be

1.6 (20°C) rsp. 1.1 (40°C)