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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
experimental study
Adequacy of study:
key study
Study period:
01 September 2015 - 16 September 2015
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

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

Materials and methods

Test guideline
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 122 (Determination of pH, Acidity and Alkalinity)
Deviations:
no
GLP compliance:
no
Remarks:
No formal claim. Study conducted in a facility operating to GLP.

Test material

Constituent 1
Chemical structure
Reference substance name:
2-amino-6-methyl-1,2,4-triazolo[1,5-a]pyrimidin-5(1H)-one
EC Number:
248-387-7
EC Name:
2-amino-6-methyl-1,2,4-triazolo[1,5-a]pyrimidin-5(1H)-one
Cas Number:
27287-73-6
Molecular formula:
C6H7N5O
IUPAC Name:
2-amino-6-methyl-1,2,4-triazolo[1,5-a]pyrimidin-5(1H)-one
Test material form:
solid: particulate/powder
Details on test material:
-Storage conditions: room temperature in the dark
-Colour: beige

Reagents

Reagent:
water

Titration of acidity and alkalinity

Details on titrant used:
Not applicable

Results and discussion

pH value
Key result
pH value:
4.6
Temp.:
25 °C
Concentration:
1 other: w/v%

Any other information on results incl. tables

Table 1: pH Value Determination

Determination

pH Value

Overall Mean pH

After 1 minute

After 2 minutes

After 10 minutes

1

4.60

4.65

Not applicable

4.6

2

4.61

4.64

Not applicable

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 4.6 at 25 ºC.
Executive summary:

The pH of a 1% w/v aqueous dispersion of the test substance in water was determined using OECD 122. The mean pH value was determined to be 4.6 at 25 ºC (mean of 2 determinations).