(3S-cis)-3,6-dimethyl-1,4-dioxane-2,5-dione

Flammability

Administrative data

Endpoint:

flammable solids

Type of information:

experimental study

Adequacy of study:

key study

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

other: GLP study

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2009

Materials and methods

Test guideline

Qualifier:

according to guideline

Guideline:

EU Method A.10 (Flammability (Solids))

GLP compliance:

not specified

Test material

Test material information

Constituent 1

Reference substance name:

(3S-cis)-3,6-dimethyl-1,4-dioxane-2,5-dione

EC Number:

224-832-0

EC Name:

(3S-cis)-3,6-dimethyl-1,4-dioxane-2,5-dione

Cas Number:

4511-42-6

Molecular formula:

C6H8O4

IUPAC Name:

3,6-dimethyl-1,4-dioxane-2,5-dione

Results and discussion

Pyrophoric solids

Test procedure:

ignition time on contact with air

Remarks:

Ignition on contact with air refers to either Pyrophoric solids or Pyrophoric liquids depending on physical state (migrated information).

Remarks on result:

no ignition on contact with air (not further specified)

Remarks:

corresponding to 'no' in migrated source record.

Pyrophoric liquids

Test procedure:

ignition time on contact with air

Remarks:

Ignition on contact with air refers to either Pyrophoric solids or Pyrophoric liquids depending on physical state (migrated information).

Remarks on result:

no ignition on contact with air (not further specified)

Remarks:

corresponding to 'no' in migrated source record.

Applicant's summary and conclusion

Interpretation of results:

non flammable

Remarks:

Migrated information

Conclusions:

LL-lactide is to be considered 'not highly flammable'.

Executive summary:

The test substance was ground in a mortar and loosely filled into an aluminum mould of 250 mm long with a triangular cross-section of inner height of 10 mm and width of 20 mm. On both sides of the mould in a longitudinal direction two metal plates were mounted as lateral limitations that project 2 mm beyond the upper edge of the triangular cross section. The mould was dropped three times from a height of 2 cm onto a solid surface. If necessary, the mould was filled up again. The lateral limitations were removed and the excess substance was scraped off. A noncombustible and non-porous plate was placed on top of the mould. The complete assembly was inverted and the mould removed. A flame of a gas burner was applied to one end of the test substance pile for 2 minutes until the test substance ignited. The pile was visually interpreted for propagation of combustion either by burning with a flame or smouldering. If applicable, the time of burning over a distance of 200 mm was measured after the pile had burned a distance of 50 mm. The flame of the gas burner did ignite the test substance pile. The test substance melted and burned with a blue flame. After removal of the ignition source, the flame extinguished immediately and no propagation of combustion was observed. No propagation of combustion of the test substance along 200 mm length of the pile within 4 minutes was observed. Based on the results obtained the test substance is considered 'not highly flammable'.