6-aminonaphthalene-2-sulphonic acid

pH

Administrative data

Endpoint:

pH

Type of information:

experimental study

Adequacy of study:

key study

Study period:

11/8/2016 - 11/8/2016

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 guideline.

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)

Principles of method if other than guideline:

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

GLP compliance:

no

Test material

Test material information

Constituent 1

Reference substance name:

6- aminonaphthalene-2-sulphonic acid

IUPAC Name:

6- aminonaphthalene-2-sulphonic acid

Constituent 2

Reference substance name:

6-aminonaphthalene-2-sulphonic acid

EC Number:

202-208-9

EC Name:

6-aminonaphthalene-2-sulphonic acid

Cas Number:

93-00-5

Molecular formula:

C10H9NO3S

IUPAC Name:

6-aminonaphthalene-2-sulphonic acid

Test material form:

solid: crystalline

Details on test material:

- Name of test material (as cited in study report): 6- aminonaphthalene-2-sulphonic acid
- Substance type: Organic
- Physical state: Solid

Results and discussion

pH value

Key result

pH value:

3.63

Temp.:

29 °C

Concentration:

1 other: % w/v

Remarks on result:

other: Acidic

Any other information on results incl. tables

Method Details		Observations	Remarks if, any
Temperature of 1% w/v test solution	-	29°C
mean pH (RESULT)	-	4.60
Inference	1.  Acidic 2.   Basic 3.   Neutral	Acidic

Applicant's summary and conclusion

Conclusions:

The pH determination of test chemical was done following OECD guideline 122. The mean pH of 1% w/v dispersion was measured with the help of digital pH meter. The mean pH was determined to be 3.63 at 29 °C.

Executive summary:

The pH determination of test chemical was done following OECD guideline 122. The mean pH of 1% w/v dispersion was measured with the help of digital pH meter. The mean pH was determined to be 3.63 at 29 °C. This value indicates that the substance is acidic in nature.