Cyclohexyldimethoxymethylsilane

Flammability

Link to relevant study record(s)

Reference

Reference 1

Endpoint:

flammable liquids: obsolete as covered by section 'Flash point'

Data waiving:

study technically not feasible

Justification for data waiving:

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

Reference 2

Endpoint:

substances / mixtures which in contact with water emit flammable gases

Type of information:

experimental study

Adequacy of study:

key study

Study period:

1995-07-17 to 1995-08-21

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

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

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Key result

Test procedure:

step 1

step 2

step 3

step 4

Identity of evolved gas:

not applicable as no gas evolved

Remarks on result:

other: The substance was determined to be non-hazardous because gases was not evolved in any of the four steps

Step 1:Noreaction

Step 2: No reaction

Step 3: No reaction

Step 4: No gas evolution was observed over 7 hours.

Interpretation of results:

GHS criteria not met

Conclusions:

A negative result for flammability on contact with water was demonstrated in a reliable study conducted according to an appropriate test protocol conducted in accordance to GLP.

Reference 3

Endpoint:

pyrophoric liquids

Type of information:

experimental study

Adequacy of study:

key study

Study period:

1995-07-17 to 1995-08-21

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

EU Method A.13 (Pyrophoric Properties of Solids and Liquids)

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Key result

Test procedure:

effect on filter paper

Remarks on result:

no ignition within 5 minutes

Diatomaceous earth:

In all of the six replicate tests, no ignition was observed within 5 minutes.

Filter paper:

In all three tests, no ignition or charring was observed.

Interpretation of results:

GHS criteria not met

Conclusions:

A negative result for pyrophoricity was demonstrated in a reliable study conducted according to an appropriate test protocol. The study was conducted in accordance to GLP.

Description of key information

The substance, cyclohexyl(dimethoxy)methylsilane:

•       Is not flammable (based on a measured flash point of 72 ± 2°C at 102.06 kPa and boiling point 203°C)

•       In contact with water does not emits a flammable gas (EU Method A.12).

•       Is not pyrophoric (EU Method A.13).

Key value for chemical safety assessment

Flammability:

not classified

Additional information

Cyclohexyl(dimethoxy)methylsilane is a liquid, so its flammability is assessed on the basis of flash point.

Cyclohexyl(dimethoxy)methylsilane does not produce a flammable gas in contact with water in available studies determined using EU Method A.12.

Cyclohexyl(dimethoxy)methylsilane was demonstrated not to be a pyrophoric liquid in a study according to EU Test Method A.13 because no ignition was observed in the first part of the test and did not ignite or char the filter paper in the second part of the study.

Justification for classification or non-classification

Flammability of liquid

Cyclohexyl(dimethoxy)methylsilane is not classified for flammability in accordance with Regulation (EC) No 1272/2008. This is based on a measured 72°C at 101.3 kPa and a measured boiling point 203°C at 101.3 kPa.

Flammability in contact with water

Cyclohexyl(dimethoxy)methylsilane does not produce a flammable gas in contact with water in a study conducted according to EU Method A.12.

Flammability in contact with air

Cyclohexyl(dimethoxy)methylsilane was demonstrated not to be pyrophoric because no ignition was observed during a study conducted according to EU Method A.13.