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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Move out of dangerous area.

Consult a physician.

Show this safety data sheet to the doctor in attendance.

Do not leave the victim unattended.

Symptoms of poisoning may appear several hours later.

Protection of first-aiders:

First Aid responders should pay attention to self-protection and use the recommended protective clothing.

If inhaled:

If unconscious, place in recovery position and seek medical advice.

If symptoms persist, call a physician.

If breathed in, move person into fresh air.

In case of skin contact:

Wash contaminated clothing before re-use.

If on skin, rinse well with water.

If on clothes, remove clothes.

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

Special hazards arising from the substance or mixture

Specific hazards during firefighting:

Contact with incompatible materials or exposure to temperatures exceeding SADT may result in a self-accelerating decomposition reaction with release of flammable vapors which may auto-ignite.

The product burns violently.

Flash back possible over considerable distance.

Vapours may form explosive mixtures with air.

Cool closed containers exposed to fire with water spray.

Advice for firefighters

Special protective equipment for firefighters:

Wear self-contained breathing apparatus for firefighting if necessary.

Use personal protective equipment.

Specific extinguishing methods:

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

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

Use water spray to cool unopened containers.

Further information : Collect contaminated fire extinguishing water separately. This must not be discharged into drains.

Fire residues and contaminated fire extinguishing water must be disposed of in accordance with local regulations.

Use extinguishing measures that are appropriate to local circumstances and the surrounding environment.

Accidental release measures

Personal precautions, protective equipment and emergency procedures

Personal precautions:

Use personal protective equipment.

Remove all sources of ignition.

Follow safe handling advice and personal protective equipment recommendations.

Beware of vapours accumulating to form explosive concentrations.

Vapours can accumulate in low areas.

Never return spills in original containers for re-use.

Treat recovered material as described in the section "Disposal considerations".

Environmental precautions:

Prevent product from entering drains.

Prevent further leakage or spillage if safe to do so.

If the product contaminates rivers and lakes or drains inform respective authorities.

Methods and material for containment and cleaning up

Methods for cleaning up:

Contact with incompatible substances can cause decomposition at or below SADT.

Clear spills immediately.

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

To clean the floor and all objects contaminated by this material, use plenty of water.

Soak up with inert absorbent material.

Isolate waste and do not reuse.

Non-sparking tools should be used.

Local or national regulations may apply to releases and disposal 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

Precautions for safe handling

Advice on safe handling:

Do not swallow.

Avoid formation of aerosol.

Take precautionary measures against static discharges.

Never return any product to the container from which it was originally removed.

Provide sufficient air exchange and/or exhaust in work rooms.

Avoid confinement.

Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.

Smoking, eating and drinking should be prohibited in the application area.

Wash thoroughly after handling.

Protect from contamination.

Advice on protection against fire and explosion:

Keep away from heat and sources of ignition. Use only explosion-proof equipment. Keep away from combustible material.

Hygiene measures:

Keep away from food and drink. When using do not eat or drink. When using do not smoke. Wash hands before breaks and immediately after handling the product.

Conditions for safe storage, including any incompatibilities

Requirements for storage areas and containers:

Avoid impurities (e.g. rust, dust, ash), risk of decomposition.

Electrical installations / working materials must comply with the technological safety standards. Containers which are opened must be carefully resealed and kept upright to prevent leakage. Store in original container. Keep containers tightly closed in a cool, well-ventilated place. Store in accordance with the particular national regulations.

Advice on common storage:

Keep away from strong acids, bases, heavy metal salts and other reducing substances.

Recommended storage temperature: 10 - 40 °C

Other data: No decomposition if stored normally.

Transport information

Land transport (UN RTDG/ADR/RID)

UN number:
UN 3103
Shipping information
Proper shipping name and description:
SpecialProvisionsopen allclose all

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

UN number:
UN 3103
Shipping information
Proper shipping name and description:
Remarksopen allclose all

Marine transport (UN RTDG/IMDG)

UN number:
UN 3103
Shipping information
Proper shipping name and description:
Remarksopen allclose all

Air transport (UN RTDG/ICAO/IATA)

UN number:
UN 3103
Shipping information
Proper shipping name and description:
Organic peroxide type C, liquid
(2,5-Dimethyl-2,5-di-(tert-butylperoxy) hexyne-3)
Organic Peroxides, Keep Away From Heat
Remarksopen allclose all
SpecialProvisionsopen allclose all

Exposure controls / personal protection

Engineering measures

Minimize workplace exposure concentrations.

Personal protective equipment

Eye protection:

Tightly fitting safety goggles

Please wear suitable protective goggles. Also wear face protection if there is a splash hazard.

Ensure that eyewash stations and safety showers are close to the workstation location.

Hand protection

Material: butyl-rubber

Break through time: >= 480 min

Glove thickness: 0.5 mm

Skin and body protection:

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

Respiratory protection:

In the case of dust or aerosol formation use respirator with an approved filter.

Filter type: ABEK-filter

Stability and reactivity


Stable under recommended storage conditions.

Chemical stability:

Stable under recommended storage conditions.

Possibility of hazardous reactions

Hazardous reactions:

Vapours may form explosive mixture with air.

Conditions to avoid:

Protect from contamination.

Contact with incompatible substances can cause decomposition at or below SADT.

Heat, flames and sparks.

Avoid confinement.

Incompatible materials

Materials to avoid:

Accelerators, strong acids and bases, heavy metals and heavy metal salts, reducing agents.

Hazardous decomposition products:

Irritant, caustic, flammable, noxious/toxic gases and vapours can develop in the case of fire and decomposition.

Disposal considerations

Waste treatment methods


The product should not be allowed to enter drains, water courses or the soil.

Do not contaminate ponds, waterways or ditches with chemical or used container.

Dispose of wastes in an approved waste disposal facility.

Contaminated packaging:

Empty remaining contents.

Dispose of as unused product.

Do not re-use empty containers.

Do not burn, or use a cutting torch on, the empty drum.

Dispose of in accordance with local regulations.