Yttrium trinitrate

pH

Administrative data

Endpoint:

acidity / alkalinity

Type of information:

experimental study

Adequacy of study:

key study

Study period:

12 June 2012

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:

2012

Report date:

2012

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:

Yttrium trinitrate

EC Number:

233-802-6

EC Name:

Yttrium trinitrate

Cas Number:

10361-93-0

Molecular formula:

N3O9Y

IUPAC Name:

yttrium trinitrate

Details on test material:

Yttrium trinitrate, no further information available on test item.

Reagents

Reagent:

NaOH solution

Titration of acidity and alkalinity

Details on titrant used:

NaOH, 1 M

Results and discussion

pH value

Key result

pH value:

1.81

Temp.:

20 °C

Acidity or alkalinity

Key result

Acidity or alkalinity:

acidity

Value:

0.448

Any other information on results incl. tables

The corrosivity value was determined to be 1.773. Since this value is > -0.5, the test substance is not considered to be corrosive.

Applicant's summary and conclusion

Conclusions:

The pH value of a 10% solution of yttrium trinitrate was determined to be 1.81 and the acidic reserve 0.448. The calculated value for corrosivity was 1.773 (> -0.5). Based on these data the substance was considered not to be corrosive.