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Physical & Chemical properties

Auto flammability

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Reference
Endpoint:
auto-flammability
Type of information:
experimental study
Adequacy of study:
key study
Study period:
March to May 2010
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
other: United nation (UN), Un No. ST/SG/AC.10/11/Rev.4: Recommendations on the Transport of Dangerous Goods, Part III, Test N.4: "Test Method for Self-Heating Substances", 2003
GLP compliance:
yes (incl. certificate)
Key result
Auto-ignition temperature:
> 140 °C
Atm. press.:
ca. 101 kPa
Remarks on result:
other: No exothermic reaction occured in an oven heated up to 140 °C and kept for 24 hours at 140 +/- 2 °C.
Key result
Relative self-ignition temperature:
> 140 °C
Remarks on result:
other: No exothermic reaction occured in an oven heated up to 140 °C and kept for 24 hours at 140 +/- 2 °C.
Remarks:
at atm. press. of ca.101.0 kPa

No changes were observed in the appearance of the test substance after 24 hours in the oven at 140 °C.

Conclusions:
Sodium toluensulphonate was considered "not self-ignitable".
Executive summary:

The self-heating temperature of Sodium toluenesulphonate was determined according to United nation (UN), Un No. ST/SG/AC.10/11/Rev.4: Recommendations on the Transport of Dangerous Goods, Part III, Test N.4: "Test Method for Self-Heating Substances", 2003.

No exothermic reaction was observed. The test substance temperature did not exceed 200 °C (i.e. a rise of more than 60 °C above the oven temperature). Therefore this test was considered negative. No changes were observed in the appearance of the test substance. Sodium toluenesulphonate was considered "not self-ignitable".

Description of key information

Sodium toluenesulphonate was considered "not self-ignitable".

Key value for chemical safety assessment

Additional information