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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
06-02-2017 – 06-02-2017
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 guidelines

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2017
Report date:
2017

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 determination of test item was done as per the test guideline OECD 122. The mean pH of the test solutionwas determined with the help of digital pH meter.
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
1-hydroxybenzotriazole
EC Number:
219-989-7
EC Name:
1-hydroxybenzotriazole
Cas Number:
2592-95-2
Molecular formula:
C6H5N3O
IUPAC Name:
1H-1,2,3-benzotriazol-1-ol
Test material form:
solid: crystalline
Details on test material:
- Name of test material (as cited in study report): 1- Hydroxybenzotriazole hydrate
- Molecular formula: C6H5N3O
- Molecular weight: 135.126 g/mol
- Substance type: Organic
- Physical state: Solid, crystalline powder

Results and discussion

pH value
Key result
pH value:
2.89
Temp.:
29 °C
Concentration:
1 other: % w/v
Remarks on result:
other: Acidic
Acidity or alkalinity
Key result
Acidity or alkalinity:
acidity
Value:
2.89
Remarks on result:
other: No other detail available

Any other information on results incl. tables

Method Details

Observations

Remarks if, any

Temperature of 1% w/v test emulsion

-

29°C

 

mean pH (RESULT)

 

-

2.89

Inference

1.   Acidic

2.   basic

3.   neutral

 

 

Acidic

 

Applicant's summary and conclusion

Conclusions:
The pH determination of test item was done as per the test guideline OECD 122. The mean pH of the test solution was determined with the help of digital pH meter. The mean pH was determine to be 2.89 at 29 °C. This value indicates that the substance is acidic in nature.
Executive summary:

The pH determination of test item was done as per the test guideline OECD 122. The mean pH of the test solution was determined with the help of digital pH meter. The mean pH was determine to be 2.89 at 29 °C. This value indicates that the substance is acidic in nature.