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Physical & Chemical properties

pH

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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:
Experimental test result performed using standard test guidelines

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2018
Report date:
2018

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)-, Et 2-[6-(ethylamino)-3-(ethylimino)-2,7-dimethyl-3H-xanthen-9-yl]benzoate copper(2+) salts
EC Number:
235-469-2
EC Name:
Ferrate(4-), hexakis(cyano-C)-, Et 2-[6-(ethylamino)-3-(ethylimino)-2,7-dimethyl-3H-xanthen-9-yl]benzoate copper(2+) salts
Cas Number:
12237-63-7
Molecular formula:
C34H31N8O3Cu3Fe
IUPAC Name:
ferrate(4-), hexakis(cyano-C)-, Et 2-[6-(ethylamino)-3-(ethylimino)-2,7-dimethyl-3H-xanthen-9-yl]benzoate copper(2+) salts
Test material form:
solid
Details on test material:
- Name of substance: ferrate(4-), hexakis(cyano-C)-, Et 2-[6-(ethylamino)-3-(ethylimino)-2,7-dimethyl-3H-xanthen-9-yl]benzoate copper(2+) salts
- Common name: Pigment red 169
- Substance type: UVCBs-organometallic
- Physical state: solid

Results and discussion

pH value
Key result
pH value:
7.17
Temp.:
25.4 °C
Concentration:
1 vol%
Remarks on result:
other: No other detail available

Any other information on results incl. tables

 Method Details     Observations  
Remarks if, any
 Guideline  OECD 122                   
 Method  Digital pH meter  
 Principle of Method

 The mean pH of an aqueous

solution or dispersion in water was

determined with a pH

measurement interface equipped

with an appropriate electrode

system.

 

Temperature of 1% w/v

test dispersion

 

25.4°C 

 mean pH (RESULT)

 

 7.17

 Inference

 1. Acidic

2. Basic

3. Neutral

 Neutral

Applicant's summary and conclusion

Conclusions:
The pH determination of test chemical was done as per the test guideline OECD 122. 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 7.17 at 25.4°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 7.17 at 25.4°C, indicating that the test chemical is neutral.

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