Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Administrative data

First-aid measures

General advice:

In the case of accident or if you feel unwell, seek medical advice immediately.

When symptoms persist or in all cases of doubt seek medical advice.

Protection of first-aiders:

First Aid responders should pay attention to self-protection, and use the recommended personal protective equipment when the potential for exposure exists.

If inhaled, remove to fresh air.

Get medical attention.

In case of skin contact:

In case of contact, immediately flush skin with plenty of water.

Remove contaminated clothing and shoes.

Get medical attention.

Wash clothing before reuse.

Thoroughly clean shoes before reuse.

In case of eye contact:

In case of contact, immediately flush eyes with plenty of water for at least 15 minutes.

If easy to do, remove contact lens, if worn.

Get medical attention immediately.

If swallowed:

If swallowed, DO NOT induce vomiting.

Get medical attention.

Rinse mouth thoroughly with water.

Never give anything by mouth to an unconscious person.


May cause an allergic skin reaction.

Causes serious eye damage.

May cause damage to organs.

Treatment : Treat symptomatically and supportively.

Fire-fighting measures

Extinguishing media

Suitable extinguishing media :

Water spray

Alcohol-resistant foam

Carbon dioxide (CO2)

Dry chemical

Unsuitable extinguishing media:

High volume water jet

Specific hazards during fire-fighting:

Do not use a solid water stream as it may scatter and spread fire.

Flash back possible over considerable distance.

Vapours may form explosive mixtures with air.

Exposure to combustion products may be a hazard to health.

Hazardous combustion products:

Carbon oxides

Silicon oxides


Nitrogen oxides (NOx)

Special protective equipment for firefighters:

In the event of fire, wear self-contained breathing apparatus. Use personal protective equipment.

Specific extinguishing methods:

Use extinguishing measures that are appropriate to local cir-cumstances and the surrounding environment.

Use water spray to cool unopened containers.

Remove undamaged containers from fire area if it is safe to do so.

Evacuate area.

Accidental release measures

Personal precautions:

Remove all sources of ignition.

Ventilate the area.

Use personal protective equipment.

Follow safe handling advice and personal protective equipment recommendations.

Environmental precautions:

Discharge into the environment must be avoided.

Prevent further leakage or spillage if safe to do so.

Prevent spreading over a wide area (e.g. by containment or oil barriers).

Retain and dispose of contaminated wash water.

Local authorities should be advised if significant spillages cannot be contained.

Methods for cleaning up:

Non-sparking tools should be used.

Soak up with inert absorbent material.

Suppress (knock down) gases/vapours/mists with a water spray jet.

For large spills, provide dyking or other appropriate containment to keep material from spreading. If dyked material can be pumped, store recovered material in appropriate container.

Clean up remaining materials from spill with suitable absorbent.

Local or national regulations may apply to releases and dis-posal of this material, as well as those materials and items employed in the cleanup of releases. You will need to determine which regulations are applicable.

Handling and storage

Technical measures:

Ensure all equipment is electrically grounded before beginning transfer operations.

This material can accumulate static charge due to its inherent physical properties and can therefore cause an electrical ignition source to vapors. In order to prevent a fire hazard, as bonding and grounding may be insufficient to remove static electricity, it is necessary to provide an inert gas purge before beginning transfer operations.

Restrict flow velocity in order to reduce the accumulation of static electricity.

Local/Total ventilation:

Use with local exhaust ventilation.

Use only in an area equipped with explosion-proof exhaust ventilation if advised by assessment of the local exposure potential

Advice on safe handling:

Do not get on skin or clothing.

Avoid inhalation of vapour or mist.

Do not swallow.

Do not get in eyes.

Handle in accordance with good industrial hygiene and safety practice, based on the results of the workplace exposure assessment

Non-sparking tools should be used.

Keep container tightly closed.

Keep away from water.

Protect from moisture.

Keep away from heat and sources of ignition.

Take precautionary measures against static discharges.

Take care to prevent spills, waste and minimize release to the environment.

Hygiene measures:

Ensure that eye flushing systems and safety showers are located close to the working place. When using do not eat, drink or smoke. Wash contaminated clothing before re-use.

Conditions for safe storage, including any incompatibilities

Requirements for storage areas and containers:

Keep in properly labelled containers. Store locked up. Keep tightly closed. Keep in a cool, well-ventilated place. Store in accordance with the particular national regulations. Keep away from heat and sources of ignition.

Advice on common storage:

Do not store with the following product types:

Strong oxidizing agents

Organic peroxides

Flammable solids

Pyrophoric liquids

Pyrophoric solids

Self-heating substances and mixtures

Substances and mixtures, which in contact with water, emit flammable gases



Specific use(s)

: These precautions are for room temperature handling.  Use at elevated temperature or aerosol/spray applications may require added precautions.

Transport information

Land transport (UN RTDG/ADR/RID)

UN number:
UN 1993
Shipping information
Proper shipping name and description:
(Methyltrimethoxysilane, Methanol)
Chemical name:
(Methyltrimethoxysilane, Methanol)
SpecialProvisionsopen allclose all

Inland waterway transport (UN RTDG/ADN(R))

UN number:
UN 1993
Shippingopen allclose all
Remarksopen allclose all

Marine transport (UN RTDG/IMDG)

UN number:
UN 1993
Shipping information
Proper shipping name and description:
(Methyltrimethoxysilane, Methanol)
Chemical name:
(Methyltrimethoxysilane, Methanol)
Remarksopen allclose all

Air transport (UN RTDG/ICAO/IATA)

UN number:
UN 1993
Shipping information
Proper shipping name and description:
Flammable liquid, n.o.s.
(Methyltrimethoxysilane, Methanol)
Chemical name:
(Methyltrimethoxysilane, Methanol)
Flammable Liquids
Remarksopen allclose all
SpecialProvisionsopen allclose all

Exposure controls / personal protection

Engineering measures

Processing may form hazardous compounds.

Minimize workplace exposure concentrations.

Use only in an area equipped with explosion-proof exhaust ventilation if advised by assessment of the local exposure potential

Use with local exhaust ventilation.

Personal protective equipment

Eye protection:       

Wear the following personal protective equipment:

Chemical resistant goggles must be worn.

If splashes are likely to occur, wear:


Hand protection

Material:Chemical-resistant gloves


Choose gloves to protect hands against chemicals depend-ing on the concentration and quantity of the hazardous substance and specific to place of work. Breakthrough time is not determined for the product. Change gloves often! For special applications, we recommend clarifying the resistance to chemicals of the aforementioned protective gloves with the glove manufacturer. Take note that the product is flam-mable, which may impact the selection of hand protection. Wash hands before breaks and at the end of workday.

Skin and body protection:

Select appropriate protective clothing based on chemical resistance data and an assessment of the local exposure potential.

Wear the following personal protective equipment:

Flame retardant antistatic protective clothing, unless as-sessment demonstrates that the risk of explosive atmospheres or flash fires is low

Skin contact must be avoided by using impervious protective clothing (gloves, aprons, boots, etc).

Respiratory protection: Use respiratory protection unless adequate local exhaust ventilation is provided or exposure assessment demonstrates that exposures are within recommended exposure guidelines.

Filter type: self-contained breathing apparatus

Stability and reactivity


Not classified as a reactivity hazard.

Chemical stability

Stable under normal conditions.

Hazardous reactions:       

Highly flammable liquid and vapour.

Vapours may form explosive mixture with air.

Use at elevated temperatures may form highly hazardous compounds.

Can react with strong oxidizing agents.

Hazardous decomposition products will be formed upon con-tact with water or humid air.

Hazardous decomposition products will be formed at elevat-ed temperatures.

Conditions to avoid:

Exposure to moisture

Handling operations that can promote accumulation of static charges.

Heat, flames and sparks.

Incompatible materials

Materials to avoid:

Oxidizing agents


Hazardous decomposition products

Contact with water or humid air : Methanol

Thermal decomposition : Formaldehyde

Disposal considerations

Waste treatment methods


Dispose of in accordance with local regulations.

According to the European Waste Catalogue, Waste Codes are not product specific, but application specific.

Waste codes should be assigned by the user, preferably in discussion with the waste disposal authorities.

Contaminated packaging:

Empty containers should be taken to an approved waste han-dling site for recycling or disposal.

Empty containers retain residue and can be dangerous.

Do not pressurize, cut, weld, braze, solder, drill, grind, or expose such containers to heat, flame, sparks, or other sources of ignition. They may explode and cause injury and/or death.

If not otherwise specified: Dispose of as unused product.