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Administrative data

Endpoint:
auto-flammability
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2012
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: well performed study according to acknowledged standards

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2012
Report date:
2012

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: VDI 2263 sheet 1
Principles of method if other than guideline:
A 8 ml cylindrical fine-mesh wire basket is filled with the test substance. The same is done with graphite as reference. Both samples are heated electrically in an air stream and the temperature inside the two samples is recorded. At the onset temperature the temperature of the test substance exceeds that of the reference measurement. Classification as self-heating is required when the onset temperature is below 220°C
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
Sodium p-(3-amino-4-methylbenzamido)benzenesulphonate
EC Number:
275-177-2
EC Name:
Sodium p-(3-amino-4-methylbenzamido)benzenesulphonate
Cas Number:
71077-34-4
Molecular formula:
C14H14N2O4S.Na
IUPAC Name:
sodium 4-[(3-amino-4-methylbenzoyl)amino]benzenesulfonate
Details on test material:
Purity: 99.5%

Results and discussion

Auto-ignition temperature (liquids / gases)open allclose all
Auto-ignition temperature:
290 °C
Atm. press.:
ca. 1 atm
Remarks on result:
other: pure substance
Auto-ignition temperature:
280 °C
Atm. press.:
ca. 1 atm
Remarks on result:
other: 1 . 1 mixture substance : kieselgur
Relative self-ignition temperature (solids)open allclose all
Relative self-ignition temperature:
290 °C
Remarks on result:
other: pure substance
Remarks:
at atm. press. of ca.1.0 atm
Relative self-ignition temperature:
280 °C
Remarks on result:
other: 1 . 1 mixture substance : kieselgur
Remarks:
at atm. press. of ca.1.0 atm

Applicant's summary and conclusion

Conclusions:
The substance has not be classified as sekf heating or auto flammable according to UN-trans´port or GHS/CLP-regulation.
Executive summary:

The substance was tested for autoflammability according to VDI 2263 sheet 1 in the Grewer overn screening test (8 ml wire basket).

For the pure substance autoflammability started at 290 °C and for a 1:1 mixture with kieselgur autoflammablity started at 280°C