Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
calculation (if not (Q)SAR)
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Remarks:
The study was carried out in a laboratory accredited under GLP, however the study itself was not subject to GLP audit. The study followed OECD TG 122 (2013) without deviations.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2015
Report date:
2015

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:
See 'Any other information on materials and methods incl. tables'.
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
2-amino-6-methyl-4-propyl-1,2,4-triazolo[1,5-a]pyrimidin-5(4H)-one
EC Number:
248-383-5
EC Name:
2-amino-6-methyl-4-propyl-1,2,4-triazolo[1,5-a]pyrimidin-5(4H)-one
Cas Number:
27277-00-5
Molecular formula:
C9H13N5O
IUPAC Name:
2-amino-6-methyl-4-propyl-1,2,4-triazolo[1,5-a]pyrimidin-5(4H)-one
Test material form:
other: beige powder

Reagents

Reagent:
other: not specified

Results and discussion

pH value
pH value:
9.89
Temp.:
25 °C
Concentration:
1 other: % w/v

Any other information on results incl. tables

Measured pH values

Determination

pH value

Overall mean pH

After 1 minute

After 2 minutes

After 10 minutes

1

9.41

9.60

9.86

9.89

2

9.67

9.74

9.91

Applicant's summary and conclusion

Conclusions:
The pH value of the test item, as a 1% w/v aqueous dispersion, has been determined to be 9.89 at 25 ºC.
Executive summary:

To determine the pH value of the test item a study was performed according to OECD TG 122 (2013). In this study the pH value of the test item, as a 1% w/v aqueous dispersion, has been determined to be 9.89 at 25 ºC.