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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
acidity / alkalinity
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2016-05-09
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:
2016
Report date:
2016

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

Constituent 1
Chemical structure
Reference substance name:
Yttrium chloride hexahydrate
Cas Number:
10025-94-2
Molecular formula:
YCl3.6H2O
IUPAC Name:
Yttrium chloride hexahydrate
Test material form:
solid: particulate/powder
Details on test material:
- Name of the test material (as cited in the report): yttrium trichloride hexahydrate
- Physical state: solid
- Appearance: white to yellowish crystalline powder
- Further information on test material confidential.

Reagents

Reagent:
NaOH solution

Titration of acidity and alkalinity

Details on titrant used:
NaOH, 1 M

Results and discussion

pH valueopen allclose all
Key result
pH value:
4.499
Temp.:
20 °C
Concentration:
10 other: w/w%
Key result
pH value:
4.553
Temp.:
20 °C
Concentration:
10 other: w/w%
Key result
pH value:
4.488
Temp.:
20 °C
Concentration:
10 other: w/w%
Acidity or alkalinity
Key result
Acidity or alkalinity:
acidity
Remarks on result:
not measured/tested
Remarks:
Since the determined pH values for yttrium trichloride hexahydrate were 4.499, 4.553 and 4.488, a determination of the acid reserve was not considered applicable.

Any other information on results incl. tables

Since the determined pH values for yttrium trichloride hexahydrate were 4.499, 4.553 and 4.488, a determination of the acid reserve was not considered applicable.

Applicant's summary and conclusion

Conclusions:
The pH value of a 10% solution of yttrium trichloride hexahydrate was determined to be 4.499, 5.553 and 4.488 (three measurements). Therefore, the determination of the acid reserve was not considered applicable.