Hexadecyltrimethylammonium methyl sulphate

Flammability

Link to relevant study record(s)

Reference

Reference 1

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

Reference 2

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

Reference 3

Endpoint:

flammable solids

Type of information:

experimental study

Adequacy of study:

key study

Study period:

October 27, 2016

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

EU Method A.10 (Flammability (Solids))

Deviations:

no

GLP compliance:

not specified

Key result

Test procedure:

burning rate test: preliminary screening test

Burning time:

ca. 0 s

Remarks on result:

other: the flames extinguished shortly after the gas burner was removed

Results

The test substance was formed into a particle train. A hot flame from a gas burner with a diameter of about 6 mm is used to ignite the pile at one end. In the preliminary screening test the substance ignited by a hot flame from a gas burner. The flame extinguished shortly after the gas burner was removed. According to the definition in the Council Regulation (EC) No 440/2008 that is pursuant to Regulation (EC) No 1907/2006 the test substance was not considered as flammable.

Interpretation of results:

other: not classified based on CLP criteria

Conclusions:

Under the study conditions, the test substance was not considered as a flammable solid.

Executive summary:

A study was conducted to determine the flammability of the test substance, C16 TMA-MS (93.44% active), according to EU Method A.10 and in-house test method (S)21 N96017.04. The test substance was formed into an unbroken strip or powder train about 250 mm long. A preliminary screening test was performed to determine if, on ignition by a gas flame, propagation by burning with flame or smoldering occurred. If propagation over 200 mm of the train occurred within 4 minutes then a full test program to determine the burning rate was carried out. If burning rate is less than 45 seconds of a 100 mm powder train, the test substance is considered as flammable. The flames extinguished shortly after the gas burner was removed. Under the study conditions, the test substance was not considered as a flammable solid (Henkel, 2016).

Description of key information

The flammbility of the test substance was determined according to EU Method A.10 (Henkel, 2016).

Key value for chemical safety assessment

Flammability:

not classified

Justification for classification or non-classification

The test substance was found to be non-flammable in a guideline test; thus no classification is required for this endpoint according to EU CLP criteria (Regulation EC 1272/2008).