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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
guideline study
Justification for type of information:
Data is from experimental study report

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2019
Report date:
2019

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 122 (Determination of pH, Acidity and Alkalinity)
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
Ferrate(4-), hexakis(cyano-C)-, methylated 4-[(4-aminophenyl)(4-imino-2,5-cyclohexadien-1-ylidene)methyl]benzenamine copper(2+) salts
EC Number:
235-468-7
EC Name:
Ferrate(4-), hexakis(cyano-C)-, methylated 4-[(4-aminophenyl)(4-imino-2,5-cyclohexadien-1-ylidene)methyl]benzenamine copper(2+) salts
Cas Number:
12237-62-6
Molecular formula:
[C24N3H28] Cu2Fe(CN)6
IUPAC Name:
ferrate(4-), hexakis(cyano-C)-, methylated 4-[(4-aminophenyl)(4-imino-2,5-cyclohexadien-1-ylidene)methyl]benzenamine copper(2+) salts
Details on test material:
- Name of the test material (IUPAC name): Ferrate(4-), hexakis(cyano-C)-, methylated 4-[(4-aminophenyl)(4-imino-2,5-cyclohexadien-1-ylidene)methyl]benzenamine copper(2+) salts
- Molecular formula: C30H34N9.Cu2.Fe
- Molecular weight: 703.59 g/mol
- SMILES: [Cu].[Cu].N#C[Fe](C#N)(C#N)(C#N)(C#N)C#N.C[NH+]=C1C=CC(C=C1)=C(C1=CC=C(C=C1)N(C)C)C1=CC=C(C=C1)N(C)C
- Physical state: Solid
- Batch no.: KCP/FS/839/19
- Physical appearance: Violet powder

Results and discussion

pH value
Key result
pH value:
5.94
Temp.:
25 °C
Remarks on result:
other: Acidic in nature

Any other information on results incl. tables

Method Details

Observations

Temperature of 1%

w/v test dispersion

 

 

25°C

 

mean pH (RESULT)

 

5.94

 

Inference

 

1. Acidic

2. Basic

3. Neutral

 

Acidic

 

Applicant's summary and conclusion

Conclusions:
The pH determination of test chemical was done following OECD guideline 122. pH of 1% w/v dispersion was measured with the help of pH meter and it was observed to be 5.94 at 25 °C.
Executive summary:

The pH of test chemical was determined. The study was performed in accordance with OECD Guideline 122 (Determination of pH, Acidity and Alkalinity). The mean pH of the 1% w/v test dispersion was determined with the help of digital pH meter. The mean pH was determined to be 5.94 at 25°C. Thus, test chemical was considered to be acidic in nature.