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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Physical & Chemical properties

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Administrative data

relative self-ignition temperature (solids)
Type of information:
experimental study
Adequacy of study:
key study
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Non-GLP (acceptable for physico-chemistry).

Data source

Reference Type:
study report
Report date:

Materials and methods

Test guidelineopen allclose all
according to guideline
other: EN 50281 (layer test)
according to guideline
other: VDI 2263 (suspended dust)
Principles of method if other than guideline:
Inflammation temperatures were determined for powder:
- as a 5 mm layer / 10 cm diameter mass, heated progressively: EN 50281, SOP N° 030
- as dust in suspension: VDI 2263, SOP N° 007
GLP compliance:
not specified

Test material

Constituent 1
Reference substance name:
Saccharomyces cerevisiae, ext.
EC Number:
EC Name:
Saccharomyces cerevisiae, ext.
Cas Number:
Molecular formula:
Not applicable as the substance is an UVCB
Yeast extract, Saccharomyces cerevisiae
Details on test material:
- Name of test material (as cited in study report): Extrait de levure SP0402/20 MG L
- Physical state: solid (powder)
- Supplier: BioSpringer
- Analytical purity/impurities: not applicable (UVCB)
- Lot/batch No.: 060800681
- Expiration date of the lot/batch: not indicated
- Stability under test conditions: not indicated
- Storage condition of test material: not indicated

Results and discussion

Relative self-ignition temperature (solids)open allclose all
Relative self-ignition temperature:
> 400 °C
Remarks on result:
other: layer assay
at atm. press. of other:likely atmospheric pressure (not indicated)
Relative self-ignition temperature:
> 500 °C
Remarks on result:
other: suspended dust assay
at atm. press. of other:likely atmospheric pressure (not indicated)

Applicant's summary and conclusion

Based on the results the test item does not need to be classified for flammability.
Executive summary:

Yeast extract powder had no ability to self-ignite:

- as simple layer, after filtering at 200 µm: self-ignition temperature > 400°C

- as suspended dust, after vacuum drying: self-ignition temperature > 500°C

Pressure was not indicated but since the systems did not seem to be closed, it was likely atmospheric pressure.