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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
relative self-ignition temperature (solids)
Type of information:
experimental study
Adequacy of study:
key study
Study period:
10Oct2001 to 03Jul2003
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

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

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
EU Method A.16 (Relative Self-Ignition Temperature for Solids)
Deviations:
not specified
GLP compliance:
yes

Test material

Constituent 1
Chemical structure
Reference substance name:
2-[(4-aminophenyl)azo]-1,3-dimethyl-1H-imidazolium chloride
EC Number:
306-764-4
EC Name:
2-[(4-aminophenyl)azo]-1,3-dimethyl-1H-imidazolium chloride
Cas Number:
97404-02-9
Molecular formula:
C11H14N5.Cl
IUPAC Name:
2-[(1E)-2-(4-aminophenyl)diazen-1-yl]-1,3-dimethyl-2,3-dihydro-1H-imidazol-1-ium chloride
Test material form:
solid: particulate/powder
Details on test material:
See individual study reports for purity information and CofA where applicable
Specific details on test material used for the study:
Chemical name: lH-imidazolium,2-[(4-aminophenyl)azo]-l,3-dimethyl-, chloride
CAS Number: 97404-02-9
Physical state: Purple powder
Sponsor batch: 013673A1
Purity: 94.1% (stated by Sponsor)
Arrival date: 26 October 2001
Expiry date: 1 November 2003 (stated by Sponsor)
Storage conditions: Room temperature (10 to 30°C)

Results and discussion

Relative self-ignition temperature (solids)
Key result
Relative self-ignition temperature:
200 °C

Any other information on results incl. tables

The resultant temperature/time chart trace from the experiment was examined and an exotherm of sufficient magnitude to constitute a self-ignition temperature is visible with an indicated oven temperature of 200°C. This corresponds well with the decomposition exotherm at close to this temperature. Prior to heating, the test sample was a purple powder. After heating, a black residue was present at the bottom of the furnace.

Applicant's summary and conclusion

Conclusions:
The resultant temperature/time chart trace from the experiment was examined and an exotherm of sufficient magnitude to constitute a self-ignition temperature is visible with an indicated oven temperature of 200°C. This corresponds well with the decomposition exotherm at close to this temperature. Prior to heating, the test sample was a purple powder. After heating, a black residue was present at the bottom of the furnace.

On heating the test material to 400°C, self-ignition was observed at 200°C.
Executive summary:

The resultant temperature/time chart trace from the experiment was examined and an exotherm of sufficient magnitude to constitute a self-ignition temperature is visible with an indicated oven temperature of 200°C. This corresponds well with the decomposition exotherm at close to this temperature. Prior to heating, the test sample was a purple powder. After heating, a black residue was present at the bottom of the furnace.

On heating the test material to 400°C, self-ignition was observed at 200°C.