Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
thermal stability
Type of information:
experimental study
Adequacy of study:
key study
Study period:
February- April 2001
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2001
Report date:
2001

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: OECD guideline 102
Version / remarks:
July 27, 1995
Deviations:
not specified
Principles of method if other than guideline:
The DSC measurements have been made following test method M95/0035 in agreement with OECD guideline 102 of July 27, 1995, and with German standard DIN 51007. The method corresponds also to OECD Guideline 113.
GLP compliance:
yes

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:
solid: particulate/powder
Details on test material:
Test item: (N-Cyclohexyl-diazeniumdioxy)-potassium
IUPAC name: Cyclohexylhydroxydiazene 1-oxide, potassium salt
Chemical name: Cyclohexylhydroxydiazene 1-oxide, potassium salt; synonyma: (N-Cyclohexyl-diazeniumdioxy)-potassium, K-HDO, K-NCH, Xyligen K powder, Xyligen K
Molecular formula: C6 H11 K N2 O2
Molecular mass: 182.27

Results and discussion

For thermal stability study

Operating temperature
Key result
Operating temp.:
<= 350 °C
Transformation products:
not specified

Any other information on results incl. tables

Disintegration temperature: at the first heating an endothermal peak at approximately 165°C and an exothermal peak at approximately 210°C can be observed. At the second heating there is no peak detectable indicating that the sample has been changed irreversibly. The disintegration temperature is estimated with the help of the exothermal peak to be at 210°C.

Applicant's summary and conclusion

Conclusions:
The disintegration temperature is estimated to be at 210°C.
Executive summary:

DSC measurements show that decomposition of K-HDO occurs at 210°C.