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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Guidance on Safe Use

Guidance on Safe Use

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Administrative data

First-aid measures

General information:

Personal protection for the First Aider.

Immediately remove any clothing soiled by the product.

After inhalation:

Take affected persons into fresh air and keep quiet.

Call a doctor immediately.

In case of unconsciousness place patient stably in side position for transportation.

After skin contact:

Call a doctor immediately.

Immediately wash with water and soap and rinse thoroughly.

After eye contact: Rinse opened eye for several minutes under running water. Then consult a doctor.

After swallowing:

Rinse out mouth and then drink plenty of water.

Drink plenty of water and provide fresh air. Call for a doctor immediately.

Fire-fighting measures

Extinguishing media:

Suitable extinguishing agents:

Fire-extinguishing powder

Carbon dioxide


Special hazards arising from the substance or mixture

Formation of toxic gases is possible during heating or in case of fire.

In case of fire, the following can be released:

Carbon monoxide (CO)

Nitrogen oxides (NOx)

Advice for firefighters:

Protective equipment: Wear self-contained respiratory protective device.

Accidental release measures

Personal precautions, protective equipment and emergency procedures

Wear protective equipment. Keep unprotected persons away.

Environmental precautions:

Do not allow to penetrate the ground/soil.

Do not allow to enter sewers/ surface or ground water.

Methods and material for containment and cleaning up:

Send for recovery or disposal in suitable receptacles.

Dispose of the material collected according to regulations.

Absorb with liquid-binding material (sand, diatomite, acid binders, universal binders, sawdust).

Use neutralizing agent.

Dispose contaminated material as waste according to disposal consideration section.

Ensure adequate ventilation.

Handling and storage


Precautions for safe handling Store in cool, dry place in tightly closed receptacles.

Information about fire - and explosion protection: No special measures required.

Conditions for safe storage, including any incompatibilities


Requirements to be met by storerooms and receptacles: No special requirements.

Information about storage in one common storage facility:

Store away from water.

Store away from oxidizing agents.

Further information about storage conditions:

Protect from humidity and water.

Keep container tightly sealed.

Transport information

Land transport (UN RTDG/ADR/RID)

UN number:
Shipping information
Proper shipping name and description:
CORROSIVE LIQUID, ACIDIC, ORGANIC, N.O.S. (Diacetoxydi-tert-butoxysilane (BDAC))
Chemical name:
Diacetoxydi-tert-butoxysilane (BDAC)
Special provisions / remarks
Danger code (Kemler): 80
Tunnerl restriction code: E
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Marine transport (UN RTDG/IMDG)

UN number:
Shipping information
Proper shipping name and description:
CORROSIVE LIQUID, ACIDIC, ORGANIC, N.O.S. (Diacetoxydi-tert-butoxysilane (BDAC))
Chemical name:
Diacetoxydi-tert-butoxysilane (BDAC)
Special provisions / remarks
Segregation groups: acids

Air transport (UN RTDG/ICAO/IATA)

UN number:
Shipping information
Proper shipping name and description:
CORROSIVE LIQUID, ACIDIC, ORGANIC, N.O.S. (Diacetoxydi-tert-butoxysilane (BDAC))
Chemical name:
Diacetoxydi-tert-butoxysilane (BDAC)
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Exposure controls / personal protection

Exposure controls:

Personal protective equipment:

General protective and hygienic measures:

Do not eat, drink, smoke or sniff while working.

Keep away from foodstuffs, beverages and feed.

Immediately remove all soiled and contaminated clothing

Wash hands before breaks and at the end of work.

Avoid contact with the eyes and skin.

Standards of Personal Protective Equipment

Respiratory protection EN 136, 140, 149

Eye protection EN 166

Body protection EN 340, 463, 468, 943-1, 943-2

Protection of hands EN 374

Safety shoes EN-ISO 20345

Respiratory protection:

Suitable respiratory protective device recommended.

Short term filter device:


Protection of hands:

Protective gloves

The glove material has to be impermeable and resistant to the product/ the substance/ the preparation.

Due to missing tests no recommendation to the glove material can be given for the product/ the preparation/ the chemical mixture.

Selection of the glove material on consideration of the penetration times, rates of diffusion and the degradation

Material of gloves

Butyl rubber, BR

The selection of the suitable gloves does not only depend on the material, but also on further marks of quality and varies from manufacturer to manufacturer.

Penetration time of glove material

The exact break through time has to be found out by the manufacturer of the protective gloves and has to be observed.

For the permanent contact of a maximum of 15 minutes gloves made of the following materials are suitable:

Butyl rubber, BR

Eye protection:

Tightly sealed goggles

Body protection: Protective work clothing

Stability and reactivity


Chemical stability:

Thermal decomposition / conditions to be avoided:

No decomposition if used and stored according to specifications.

· Possibility of hazardous reactions

Reacts with water.

Reacts with acids.

Reacts with alkali (lyes).

Reacts with alcohols.

Reacts with amines.

Reacts with strong oxidizing agents.

Contact with water will cause spontaneous hydrolysis (Can be explosive!).

Develops toxic gases/fumes.

Develops corrosive gases/fumes.

Hazardous decomposition products: Ethanoic acid

Disposal considerations

Waste treatment methods:


After prior treatment product has to be disposed of in an incinerator for hazardous waste adhering to the regulations pertaining to the disposal of particularly hazardous waste.

Must not be disposed together with household garbage. Do not allow product to reach sewage system.

Uncleaned packaging:

Recommendation: Disposal must be made according to official regulations.