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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
supporting study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Justification for type of information:
Data is from experimental report

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2017
Report date:
2017

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:
Phenylacetic acid
EC Number:
203-148-6
EC Name:
Phenylacetic acid
Cas Number:
103-82-2
Molecular formula:
C8H8O2
IUPAC Name:
phenylacetic acid
Test material form:
solid
Details on test material:
- Name of test material: Phenylacetic acid; Benzeneacetic acid
- Molecular formula: C8-H8-O2
- Molecular weight: 136.149 g/mole
- Smiles : c1(ccccc1)CC(O)=O
- Inchl: 1S/C8H8O2/c9-8(10)6-7-4-2-1-3-5-7/h1-5H,6H2,(H,9,10)
- Substance type: Organic
- Physical state: solid

Results and discussion

pH value
Key result
pH value:
2.97
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 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 solution

 

29°C 

  mean pH (RESULT)

 

 2.97

Inference 

 1. Acidic

2. Basic

3. Neutral

 

Acidic 

Applicant's summary and conclusion

Conclusions:
The pH of 1% w/v solution of the testchemical was determined to be 2.97 at 29 °C.
Executive summary:

The pH determination of test chemical was done as per the test guideline OECD 122. The mean pH of the test solution was determined with the help of digital pH meter. The mean pH was determined to be 2.97 at 29 °C.