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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:
08.12.2003
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Justification for type of information:
K-HDO is manufactured as 30 % aqueous dilution. Therefore the pH-analysis of this aqueous dilution has been summarized in this record.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2003
Report date:
2003

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
CIPAC MT 75 (Determination of pH Values)
Deviations:
not specified
Qualifier:
according to guideline
Guideline:
other: ASTM 70-77 "pH of aqueous solutions with the glass electrode"
Deviations:
not specified
GLP compliance:
no
Remarks:
BASF Wolman GmbH is not a GLP certified laboratory. However the requirements of Good Laboratory Practice have always been followed.

Test material

Constituent 1
Chemical structure
Reference substance name:
Cyclohexylhydroxydiazene 1-oxide, potassium salt
EC Number:
613-953-8
Cas Number:
66603-10-9
Molecular formula:
C6H11KN2O2
IUPAC Name:
Cyclohexylhydroxydiazene 1-oxide, potassium salt
Test material form:
liquid
Details on test material:
Xyligen 30F is a 30% aqueous solution of K-HDO.
Specific details on test material used for the study:
Purity: 100 %
Physical State: Liquid
Colour: clear, yellow-brown
Odour: characteristic
Solubility: miscible with water
Homogeneity: Homogeneous
Stability: stable at ambient conditions
Storage conditions: room temperature

Results and discussion

pH valueopen allclose all
Key result
pH value:
8.23
Temp.:
20 °C
Concentration:
1 other: % w/w
Key result
pH value:
8.81
Temp.:
20 °C
Concentration:
10 other: % w/w

Any other information on results incl. tables

Test results:

pH (at 20°C)

1 % solution: 8.23

10 % solution: 8.81

Applicant's summary and conclusion

Executive summary:

pH values of Xyligen 30F (at 20°C):

1 % solution: 8.23

10 % solution: 8.81