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Auto flammability

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Description of key information

No auto-ignition temperature of PURASAL S was observed until 400 °C.

Key value for chemical safety assessment

Additional information

The objective of this study was to determine the auto-ignition temperature of the test item in air at atmospheric pressure. A small sample of the test item was inserted into an uniformly heated 500 ml glass flask containing air at a predetermined temperature. The lowest temperature at which hot-flame ignition occurs for a series of prescribed sample volumes was taken to be the hot-flame auto-ignition temperature of the chemical.

Temperature was measured in case of each experiment at the outside and inside of the flask. The temperature distribution was steady outside the flask.The experiment was carried out at 969 hPa atmospheric pressure.

No auto-ignition temperature of PURASAL S was observed until 400 °C.