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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:
Data is from experimental study report

Data source

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

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:
4,4'-bis(dimethylamino)-4''-(methylamino)trityl alcohol
EC Number:
209-218-2
EC Name:
4,4'-bis(dimethylamino)-4''-(methylamino)trityl alcohol
Cas Number:
561-41-1
Molecular formula:
C24-H29-N3-O
IUPAC Name:
bis[4-(dimethylamino)phenyl][4-(methylamino)phenyl]methanol
Test material form:
solid
Details on test material:
- Name of test material: 4,4'-bis(dimethylamino)-4''-(methylamino)trityl alcohol
- Molecular formula: C24H29N3O
- Molecular weight: 375.513
- Smiles: C(c1ccc(cc1)N(C)C)(c1ccc(cc1)N(C)C)(c1ccc (cc1)NC)O
-Inchi: 1S/C24H29N3O/c1-25-21-12-6-18(7-13-21)24 (28, 19-8-14-22(15-9-19)26(2)3)20-10-16-23(17-11-20)27(4) 5/h6-17,25,28H,1-5H3

- Substance type: Organic
- Physical state: solid

Results and discussion

pH value
Key result
pH value:
7.4
Temp.:
23 °C
Concentration:
1 vol%

Any other information on results incl. tables

TEST RESULTS

Method Details

Observations

Guideline

OECD 122

-

Method

 

pH Meter

-

Principle of method

 

 

 

 

 

 

 

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.

 

 

-

Temperature of 1% w/v test solution

-

23°C

pH (RESULT)

 

-

7.4

Inference

1.   Acidic

2.   Basic

3.   Neutral

 

 

Basic

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 7.4 at 23°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 7.4 at 23°C. Thus, test chemical was considered to be basic in nature.