(3-methoxy-2-methylpropyl)benzene

Flammability

Link to relevant study record(s)

Reference

Reference 1

Endpoint:

substances / mixtures which in contact with water emit flammable gases

Type of information:

experimental study

Adequacy of study:

key study

Study period:

From August 18 to 26, 1997

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Remarks:

The study was conducted according to EC(UN) guideline, and under GLP. No deviation affected the quality of the study. The substance is considered to be adequately characterised with its purity. Therefore full validation applies.

Qualifier:

according to guideline

Guideline:

EU Method A.12 (Flammability (Contact with Water))

Deviations:

no

Principles of method if other than guideline:

Not applicable

GLP compliance:

yes

Remarks:

(no certificate)

Key result

Test procedure:

step 1

step 2

step 3

step 4

Identity of evolved gas:

not applicable as no gas evolved

Test results

Step 1: no evolved gas, no ignition

(0.5 cm³ of sample in a little distilled water)

Step 2: no evolved gas, no ignition

(2 sample drops on the filter-paper)

Step 3: no evolved gas, no ignition

(2 sample drops and about 5 drops of distilled water)

Step 4: each test is carried out in two identical apparatuses; one is containing the test substance with water and the other only water. During the test, the room temperature and atmospheric pressure variation effects on the evolved gas volume are thus known. In a one hour period, the volume of gas evolved by the sample is equal to the apparent volume in the cell containing the substance minus the volume in the cell without the substance.

In contact with water, the test substance should not be considered as a hazardous substance in terms of the A12 method, because, in contact with water, it does not ignite spontaneously and does not exceed the limit of 1 liter/kg/h of flammable gas.

Interpretation of results:

not classified based on GHS criteria

Conclusions:

The test item is NOT classified as a substance which, in contact with water, emits flammable gases, according to Regulation (EC) N°1272/2008 (CLP) criteria.

Executive summary:

The substance was tested for its flammable properties in contact with water, according to EU A12 guideline (identical to UN N5), and under GLP.

It does not ignite spontaneously and does not exceed the limit of 1 liter/kg/h of flammable gas.

Reference 2

Endpoint:

pyrophoric liquids

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

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

Justification for type of information:

JUSTIFICATION FOR DATA WAIVING
In accordance with section 1 of REACh Annex XI, studies for pyrophoric properties, are deemed unnecessary based on the chemical structure that do not fall into critical categories described in ECHA guidance, and based on the experience in handling and use of the substance.

Reference 3

Endpoint:

flammable solids

Data waiving:

study technically not feasible

Justification for data waiving:

the study does not need to be conducted because the substance is a liquid

Justification for type of information:

JUSTIFICATION FOR DATA WAIVING
In accordance with section 2 of REACh Annex XI, flammability studies relevant for classification criteria under 4.13 do not apply to liquids. Please refer to flash point under 4.11.

Reason / purpose for cross-reference:

data waiving: supporting information

Reason / purpose for cross-reference:

data waiving: supporting information

Reference 4

Endpoint:

self-heating substances / mixtures

Data waiving:

study technically not feasible

Justification for data waiving:

the study does not need to be conducted because the substance is a liquid

Justification for type of information:

JUSTIFICATION FOR DATA WAIVING
According to ECHA Guidance on the Application of the CLP Criteria (v4.1, June 2015, §2.11.4.2.), the phenomenon of self-heating generally applies only to solids. The surface of liquids is not large enough for reaction with air and the test method (UN N4) is not applicable to liquids. Therefore liquids, unless adsorbed, are not classified as self-heating.
Moreover, nor the major component nor impurities contain metals, which are typically self-heating substances.

Description of key information

Flash point = 84°C (experimental)

No release of flammable gas if contact with water (exp.)

Not flammable if contact with air (waived).

No self-heating anticipated for liquids (waived).

Key value for chemical safety assessment

Flammability:

not classified

Additional information

As the substance is a liquid, the relevant test for flammable properties is the flash point measurement. A fully reliable experimental study is presented under point 4.11.

Based on the chemical structure and experience, no flammable properties are anticipated if contact with air or water, or no self-heating, therefore studies are not required. However, a fully reliable study is available regarding contact with water, and confirmed the lack of hazard.

Justification for classification or non-classification

According to Regulation (EC) No.1272/2008 (CLP) criteria, the measured flash point is above the threshold value of 60°C, therefore the substance is NOT considered as a flammable liquid.

According to UN Globally Harmonised System (GHS) criteria, the measured flash point is below the threshold value of 93°C, therefore the substance is considered as a Flammable Liquid of category 4 (combustible liquid).