4-amino-2,5-dichloro-N,N-dimethylbenzenesulphonamide

Auto flammability

Administrative data

Endpoint:

relative self-ignition temperature (solids)

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2011

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

other: well performed study according to acknowledged guideline

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2011

Report date:

2011

Materials and methods

Test guideline

Test guideline 1

Qualifier:

according to guideline

Guideline:

EU Method A.16 (Relative Self-Ignition Temperature for Solids)

Deviations:

not specified

Test guideline 2

Qualifier:

according to guideline

Guideline:

other: VDI 2263 sheet 1

Deviations:

not specified

GLP compliance:

no

Test material

Test material information

Constituent 1

Reference substance name:

4-amino-2,5-dichloro-N,N-dimethylbenzenesulphonamide

EC Number:

247-501-2

EC Name:

4-amino-2,5-dichloro-N,N-dimethylbenzenesulphonamide

Cas Number:

26175-68-8

Molecular formula:

C8H10Cl2N2O2S

IUPAC Name:

4-amino-2,5-dichloro-N,N-dimethylbenzene-1-sulfonamide

Results and discussion

Relative self-ignition temperature (solids)

Relative self-ignition temperature:

> 400 °C

Remarks on result:

other:

Remarks:

at atm. press. of ca.1.0 atm

Applicant's summary and conclusion

Conclusions:

UN-Transport regulations
The test item has not to be classified as self-heating substance in Class 4 Division 4.2 according to the UN-Transport Regulations.
GHS and EC 1272/2008 (CLP-Guideline) Annex 1: 2.11:
The test item has not to be assigned as a self-heating substances according to EC 1272/2008 (CLP-Guideline) Annex 1: 2.11.

Executive summary:

The self-ignition behavior of the product is determined in the Grewer-oven according to VDI 2263, sheet 1. Therefore, the test item is filled in a small wire basket of a volume of 8 cm³ and this wire-basket is placed in the Grewer-oven. An additional basket is filled with a reference substance (Graphite).The temperature of the oven is increased with a constant heating rate (1.2 K/min) and the temperature of the sample monitored. The self-ignition behavior of the pure test item is investigated. Very often, the test item melts before a self-ignition takes place. In this case, the sample flows out of the basket and no self-ignition can occur. Thus, the self-ignition behavior of the sample blended with 50 wt.-% Kieselghur is also investigated.

In the investigation of self-ignition in the Grewer-oven for the pure test item and in mixture with Kieselguhr an endothermic effect was detected at a temperature of 130 °C, which can be attributed to the melting of the test item. No exothermal process was detected up to the melting or the final temperature of 410 °C, respectively. After the experiment the wire basket was empty, meaning that the test item flew out of the wire basket before a self-ignition occurred.