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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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 OECD test guidelines

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2016
Report date:
2016

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:
Diphenylacetonitrile
EC Number:
201-662-5
EC Name:
Diphenylacetonitrile
Cas Number:
86-29-3
Molecular formula:
C14H11N
IUPAC Name:
2,2-diphenylacetonitrile
Test material form:
solid: particulate/powder
Details on test material:
- Name of the test chemical: Diphenylacetonitrile
- Molecular weight: 193.248 g/mol
- Molecular formula: C14H11N
- SMILES: C(c1ccccc1)(c1ccccc1)C#N
- InChI: 1S/C14H11N/c15-11-14(12-7-3-1-4-8-12)13-9-5-2-6-10-13/h1-10,14H
- Substance type: Organic
- Physical state: Solid
- Batch No./ Lot no.: 0001
- Physical Appearance: white powder
- Purity: 98%
- Stability: Stable in recommended storage conditions
- Storage Conditions: Ambient Temp (23 to 27 °C)

Results and discussion

pH value
Key result
pH value:
5.96
Temp.:
29 °C
Concentration:
1 vol%

Any other information on results incl. tables

Method Details

Observations

Remarks if, any

Guideline

OECD 122

 

 

Method

 

Digital pH meter

 

Principle of method

The pH of an aqueous solution or dispersion in water is determined with a pH measurement interface equipped with an appropriate electrode system.

 

Temperature of 1% w/v test solution

-

29

Mean pH (RESULT)

 

-

5.96

Inference

1.   Acidic

2.   Basic

3.   Neutral

 

acidic

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 5..96 at 29°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 5.96 at 29°C. Thus, test chemical is considered to be acidic in nature.