(4-carboxybutyl)triphenylphosphonium bromide

pH

Administrative data

Endpoint:

pH

Type of information:

experimental study

Adequacy of study:

key study

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

study well documented, meets generally accepted scientific principles, acceptable for assessment

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2019

Report date:

2019

Materials and methods

Test guideline

Qualifier:

equivalent or similar to guideline

Guideline:

OECD Guideline 122 (Determination of pH, Acidity and Alkalinity)

GLP compliance:

no

Test material

Test material information

Constituent 1

Reference substance name:

(4-carboxybutyl)triphenylphosphonium bromide

EC Number:

241-782-5

EC Name:

(4-carboxybutyl)triphenylphosphonium bromide

Cas Number:

17814-85-6

Molecular formula:

C23H24BrO2P

IUPAC Name:

(4-carboxybutyl)triphenylphosphonium bromide

Test material form:

solid

Results and discussion

pH value

pH value 1

Key result

pH value:

3.1

Temp.:

24.7 °C

Concentration:

1 vol%

pH value 2

Key result

pH value:

2.7

Temp.:

24.7 °C

Concentration:

10 vol%

Any other information on results incl. tables

For the concentration of 1 % in water, 1 g of the test item were weighted and filled up to 100 g with purified water. For the concentration of 1 0 % in water, 10 g of the test item were weighted and filled up to 100 g with purified water. 

Applicant's summary and conclusion

Conclusions:

The pH-value at a concentration of 10 g/L is determined to be 3.1 and at a concentration of 100 g/L it is determined to be 2.7 at 24.7 °C.