12-hydroxystearic acid

Auto flammability

Administrative data

Endpoint:

relative self-ignition temperature (solids)

Type of information:

experimental study

Adequacy of study:

key study

Study period:

From Aug. 17,2010 to Sept. 29, 2010

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

other: The study was conducted according to standard guideline in compliance with GLP.

Justification for data waiving:

other:

Cross-reference

Cross-reference 1

Reason / purpose for cross-reference:

reference to same study

Cross-reference 2

Reason / purpose for cross-reference:

reference to other study

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2010

Report date:

2010

Materials and methods

Test guideline

Qualifier:

according to guideline

Guideline:

EU Method A.16 (Relative Self-Ignition Temperature for Solids)

Deviations:

yes

Remarks:

The average heating rate over the entire temperature range was 0.5 °C/min, but the heating rate was not constant 0.5 °C/min.

Principles of method if other than guideline:

Not applicable

GLP compliance:

yes (incl. QA statement)

Test material

Test material information

Constituent 1

Reference substance name:

12-hydroxystearic acid

EC Number:

203-366-1

EC Name:

12-hydroxystearic acid

Cas Number:

106-14-9

Molecular formula:

C18H36O3

IUPAC Name:

12-hydroxyoctadecanoic acid

Details on test material:

- Name of test material (as cited in study report): 12-hydroxystearic acid
- Physical state: Solid / white to yellowish
- Certificate of analysis date: 09 April 2010
- Expiration date of the lot/batch: 09 April 2011
- Storage condition of test material: In original container, at room temperature (15 - 25°C), in the dark

Results and discussion

Any other information on results incl. tables

Using a linear increase in temperature of about 0.5°C/min up to about 100°C, the test substance showed no self-ignition reaction. At the end of the experiment, the test item was liquid.

Applicant's summary and conclusion

Conclusions:

The test substance is considered not to be auto-flammable, according to the criteria described in the guideline.

Executive summary:

The relative self-ignition temperature of 12-hydroxystearic acid was determined according to EU Method A.16.

The test substance was filled in a cube (with wire mesh top) and placed in an oven. The temperature of the oven and the sample were continuously recorded using thermocouples while the temperature of the oven increased to approx. 100°C at an average rate of 0.5°C/min.

Using a linear increase in temperature of about 0.5°C/min up to about 100°C, the test substance showed no self-ignition reaction. At the end of the experiment the test item was liquid.

In conclusion, the test substance is considered not to be auto-flammable, according to the criteria described in the guideline.