4-(2-hydroxyethyl)-1-piperazinepropanesulphonic acid

Auto flammability

Link to relevant study record(s)

Reference

Endpoint:

relative self-ignition temperature (solids)

Type of information:

experimental study

Adequacy of study:

key study

Study period:

from 2020-12-16 to 2020-12-17

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Reason / purpose for cross-reference:

reference to same study

Qualifier:

according to guideline

Guideline:

other: VDI guideline 2263, Part 1, 1990: Test Methods for the Determination of the Safety Characteristic of Dusts, 1.4.1 Test according to Grewer

Version / remarks:

1990

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Key result

Remarks on result:

no self ignition observed under the test conditions

In the investigation of self-ignition in the Grewer Oven for the pure test item an endothermic effect was detected in the temperature range of approx. 230 – 260 °C. No exothermic process was detected up to the test end temperature of approx. 410 °C. A black residue remained in the wire basket after the test.

For the test item in mixture with Kieselguhr an exothermic effect was observed starting at a temperature of 245 °C, which led to a maximum temperature of approx. 535 °C (approx. 200 °C above the corresponding temperature of the reference material). A grey residue remained in the wire basket after the test.

Experiment	Onset self- ignition / °C	Maximum temperature / °C
Pure test item	-	-
Test item in mixture with Kieselguhr (1:1)	245	535

The pure test item indicated no self-ignition at atmospheric pressure.

Conclusions:

The test item indicated no self-ignition up to approximately 410 °C.

Executive summary:

A study was conducted to determine the self-ignition of the test item according to VDI 2263 Sheet 1 Grewer Oven (1990). In the investigation of self-ignition in the Grewer Oven for the pure test item an endothermic effect was detected in the temperature range of approx. 230 – 260 °C. No exothermic process was detected up to the test end temperature of approx. 410 °C. A black residue remained in the wire basket after the test. The pure test item indicated no self-ignition at atmospheric pressure.

Description of key information

The test item indicated no self-ignition up to approximately 410 °C (reference 4.12-1).

Additional information

A study was conducted to determine the self-ignition of the test item according to VDI 2263 Sheet 1 Grewer Oven (1990). In the investigation of self-ignition in the Grewer Oven for the pure test item an endothermic effect was detected in the temperature range of approx. 230 – 260 °C. No exothermic process was detected up to the test end temperature of approx. 410 °C. A black residue remained in the wire basket after the test. The pure test item indicated no self-ignition at atmospheric pressure.