Sodium mentholate

Flammability

Link to relevant study record(s)

Reference

Reference 1

Endpoint:

self-heating substances / mixtures

Type of information:

experimental study

Adequacy of study:

key study

Study period:

29 MAR 2021

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

UN Manual of Tests and Criteria: Test N.4 (Test method for self-heating substances)

Deviations:

no

GLP compliance:

no

Test procedure:

100 mm sample cube at 140°C

Max. temp. reached:

215

Induction time (h):

24

Result:

positive outcome (effect observed)

Test procedure:

25 mm sample cube at 140°C

Max. temp. reached:

277

Induction time (h):

24

Result:

positive outcome (effect observed)

The 100 mm³ sample container and 25 mm³ container were filled to the brim with the sample. Thermocouples were inserted into the center of the test sample. In both trials, the temperature of the sample exceeded that of the oven by greater than 60°C.

Substance	Cube size [mm]	Oven Temp. [°C]	Result
Sodium mentholate	100	140	Sample temperature exceeded the oven temperature by greater than 60°C during the 24 testing period. Max temperature was 215 °C.
Sodium mentholate	25	140	Sample temperature exceeded the oven temperature by greater than 60°C during the 24 testing period. Max temperature was 277 °C.

Based on the test results for both trials, the sample gave a positive result during the UN Test N.4, “Test method for self-heating substances”, is considered a self-heating substance, and is classified in Division 4.2, Packing Group II.

Interpretation of results:

other: Category 1 (self-heating substances and mixtures) based on EU GHS criteria

Conclusions:

The sample gave a positive result in the 100 mm and 25 mm cube at a test temperature of 140 °C.

Executive summary:

The sample was tested for its self-heating properties according to UN Test N.4 in a non-GLP study. The sample gave a positive result in the 100 mm and 25 mm cube at a test temperature of 140 °C. Therefore the substance has to be classified as self-heating substance Category 1 according to EU GHS criteria.

Reference 2

Endpoint:

flammable solids

Data waiving:

study scientifically not necessary / other information available

Justification for data waiving:

other:

Interpretation of results:

other: Category 1 (flammable solids) based on EU GHS criteria

Conclusions:

The study does not need to be conducted because it is well known from literature and handling of such substances (alkali metal alcoholates) that they are highly flammable. Therefore the substance is classified as flammable solid category 1 according to EU GHS. In addition the substance has self-heating properties and is classified as self-heating substance category 1 according to EU GHS.

Executive summary:

The study does not need to be conducted because it is well known from literature and handling of such substances (alkali metal alcoholates) that they are highly flammable. Therefore the substance is classified as flammable solid category 1 according to EU GHS. In addition the substance has self-heating properties and is classified as self-heating substance category 1 according to EU GHS.

Reference 3

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 organic substance does not contain metals or metalloids and hence, the classification procedure does not need to be applied

Description of key information

Flammability, self-heating substances:

The sample was tested for its self-heating properties according to UN Test N.4 in a non-GLP study. The sample gave a positive result in the 100 mm and 25 mm cube at a test temperature of 140 °C. Therefore the substance has to be classified as self-heating substance Category 1 according to EU GHS criteria.

Flammability:

The study does not need to be conducted because it is well known from literature and handling of such substances (alkali metal alcoholates) that they are highly flammable. Therefore the substance is classified as flammable solid category 1 according to EU GHS. In addition the substance has self-heating properties and is classified as self-heating substance category 1 according to EU GHS.

Flammability, contact with water:

The study is scientifically not necessary, because the organic substance does not contain metals or metalloids. Also the test material does not contain structural components associated with flammability on contact with water mentioned in the Guidance on information requirements and chemical safety assessment Chapter R.7a: Endpoint specific guidance, chapter R.7.1.10.3, page 123. Therefore, it can be concluded that the test material exhibit no risk for flammability on contact with water.

Key value for chemical safety assessment

Flammability:

flammable

Justification for classification or non-classification

The substance is classified as flammable solid category 1 according to EU GHS because of common available data and experience in handling.

In addition the substance is classified as self-heating substance category 1 according to EU GHS because of the positive outcome during UN Test N.4 for the 25 mm cube at 140 °C.

The organic substance does not contain metals or metalloids. Also the test material does not contain structural components associated with flammability on contact with water, therefore here no classification applies.