Sodium ascorbate

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:

2009-12-17 to 2010-03-10

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

EU Method A.15 (Auto-Ignition Temperature (Liquids and Gases))

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Specific details on test material used for the study:

- Batch Number: TL00910581

Key result

Remarks on result:

no self ignition observed under the test conditions

The correlation between the temperature of the oven and the sample temperature of the test item is shown in the attached Figure 1. Using a linear increase in temperature of about 0.5 °C/min, the test item showed an exothermic heat effect but with a maximum temperature below 400 °C. At the end of the measurement the test item had run out of the sample cube, foamed and was colored dark-grey to black.

Conclusions:

The test item is not auto-flammable, according to the criteria as described in the guideline.

Executive summary:

The determination of the relative self-ignition temperature of the test item was performed according to the EEC Directive 92/69, EEC Publication No. L383, December 1992 and Council Regulation (EC) No. 440/2008, Part A, Methods for the determination of physico-chemical properties, A.16 Relative self-ignition temperature for solids. The test item was filled into a cube and heated in an oven. The temperatures of the oven and the sample were continuously recorded while the temperature of the oven was increased to approximately 400 °C. The test item showed an exothermic heat effect but with a maximum temperature below 400 °C. The test item is not auto-flammable according to the criteria as described in the guideline. The atmospheric pressure during the measurement was 97.1 kPa.

Description of key information

The test item is not auto-flammable.

Additional information

The determination of the relative self-ignition temperature of the test item was performed according to the EEC Directive 92/69, EEC Publication No. L383, December 1992 and Council Regulation (EC) No. 440/2008, Part A, Methods for the determination of physico-chemical properties, A.16 Relative self-ignition temperature for solids. The test item was filled into a cube and heated in an oven. The temperatures of the oven and the sample were continuously recorded while the temperature of the oven was increased to approximately 400 °C. The test item showed an exothermic heat effect but with a maximum temperature below 400 °C. The test item is not auto-flammable according to the criteria as described in the guideline. The atmospheric pressure during the measurement was 97.1 kPa.