Butan-2-one O,O',O'',O'''-silanetetrayltetraoxime

Flammability

Link to relevant study record(s)

Reference

Reference 1

Endpoint:

pyrophoric solids

Data waiving:

study scientifically not necessary / other information available

Justification for data waiving:

the study does not need to be conducted because the substance is known to be stable in contact with air at room temperature for prolonged periods of time (days) and hence, the classification procedure does not need to be applied

Justification for type of information:

JUSTIFICATION FOR DATA WAIVING
Pyrophoric properties: The test was not performed experimentally because practical experience exists at the sponsor and the test facility, e.g. when handling small amounts of the test substance repeatedly in air during testing. The test substance is therefore regarded as not being pyrophoric.

Reference 2

Endpoint:

substances / mixtures which in contact with water emit flammable gases

Data waiving:

study scientifically not necessary / other information available

Justification for data waiving:

the study does not need to be conducted because the experience in production or handling shows that the substance does not react with water, e.g. the substance is manufactured with water or washed with water

Justification for type of information:

JUSTIFICATION FOR DATA WAIVING
Flammability in contact with water: The practical experience of the sponsor and the test facility shows that no gases are developed, when the test substance is in contact with water. The test substance is therefore regarded as not being flammable in contact with water.

Reference 3

Endpoint:

flammable solids

Type of information:

experimental study

Adequacy of study:

key study

Study period:

February 21, 2013

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

other: Test method in accordance with UN N.1.

Qualifier:

according to guideline

Guideline:

other: UN N.1 from Regulation (EC) no. 1272/2008.

GLP compliance:

yes (incl. QA statement)

Test procedure:

burning time (test type not further specified)

Remarks:

or specified in description of method (migrated information)

Burning time:

39 s

Remarks on result:

other: The wetted zone did not stop the fire for at least 4 minutes.

Preliminary screening test:

Test number	Time of burning [s]	Comments
Test-1	103	After applying the flame of burner the samplemelts and immediatelyignites.After removal of ignition sourcethe flame propagate on the next part of path without smoke. Result is positive.
Test-2	105
Test-3	99

Burn rate test:

Burning rate test	Time of burning [s]	Does wetted zone stops the fire for at least 4 minutes?
Test - 1	46	No
Test - 2	48	No
Test - 3	39	No
Test - 4	42	No
Test - 5	45	No
Test - 6	41	No
The shortest burning time [s]	39
Burning rate [mm/s]	2.56

Interpretation of results:

highly flammable

Conclusions:

Butan-2-one-O,O’,O’’,O’’’- silanetetrayl tetraoxime (TOS) is flammable solid, Category 1 according to UN N.1.

Executive summary:

Determination of the flammability for solids was performed according to UN N.1 test (Test method for readily combustible solids) from the Regulation (EC) No. 1272/2008 on classification, labelling and packaging of substances and mixtures. After performing a preliminary screening test where results were positive (combustion propagated along 200 mm of the train within the 2 minutes test period), the main burn rate test was performed (six trials). The sortest buring time was determined to be of 39 seconds and the wetted zone did not stop fire in any of the attemps. Based on these result, the test sample was determined to be a flammable solid, category 1 according to UN N.1.

Reference 4

Endpoint:

flammable solids

Type of information:

experimental study

Adequacy of study:

key study

Study period:

November 28, 2012

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

other: Test method according to EU method A.1. GLP study.

Qualifier:

according to guideline

Guideline:

EU Method A.10 (Flammability (Solids))

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Test procedure:

burning time (test type not further specified)

Remarks:

or specified in description of method (migrated information)

Burning time:

36 s

Results of burning rate test for Butan-2-one-O,O’,O’’,O’’’- silanetetrayl tetraoxime (TOS):

Burning rate test	Time of burning [s]
Test - 1	36
Test - 2	38
Test - 3	42
Test - 4	45
Test - 5	45
Test - 6	41
The shortest burning time [s]	36
Burning rate [mm/s]	2.78

Test item was determined to be highly flammable in accordance with test A.10. criteria since the time of burning in any tests was less than 45 seconds.

Interpretation of results:

highly flammable

Conclusions:

The test substance was determined to be highly flammable in accordance with test A.10. criteria.

Executive summary:

A flammability (solids) test was performed according to EU method A.10 (GLP study). The shorter burning time was determined to be 36 s and the burninig rate 2.78 mm/s. Based on these results, the test substance was determined to be highly flammable in accordance with test A.10. criteria.

Description of key information

Flammability (solid): Key study: EU method A.10. GLP study. The test item was determined to be highly flammable in accordance with test A.10 criteria.

Flammability (solid): Key study: Test metod UN N.1. GLP study: The test item was determined to be a flammable solid, category 1 in accordance to UN N.1 criteria.

Flammability on contact with water: Data waiving (study scientifically not necessary): Based on experience on handling and use, the substance is stable and does not became spontaneously flammable or emit flammable gases in contact with water.

Pyrophoric properties: Data waiving (study scientifically not necessary): Based on experience on handling and use, the substance is stable and does not spontaneously ignite when exposed to air.

Key value for chemical safety assessment

Flammability:

highly flammable

Additional information

Flammability (solid): Key study: A flammability (solids) test was performed according to EU method A.10 (GLP study). The shorter burning time was determined to be 36 s and the burninig rate 2.78 mm/s. Based on these results, the test substance was determined to be highly flammable in accordance with test A.10. criteria.

Flammability (solid): Key study: Determination of the flammability for solids was performed according to UN N.1 (GLP study). The sortest buring time was determined to be 39 s and the wetted zone did not stop fire in any of the attemps. Based on these result, the test sample was determined to be a flammable solid, category 1 according to UN N.1.

Flammability on contact with water: Data waiving (study scientifically not necessary): Based on experience on handling and use, the substance is stable and does not became spontaneously flammable or emit flammable gases in contact with water.

Pyrophoric properties: Data waiving (study scientifically not necessary): Based on experience on handling and use, the substance is stable and does not spontaneously ignite when exposed to air.

Justification for classification or non-classification

Based on the available information, the substance butan-2-one-O,O’,O’’,O’’’- silanetetrayl tetraoxime (TOS) is classified as a flammable solid, Category 1 according to CLP Regulation (EC) no. 1272/2008.