Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Administrative data

First-aid measures

Description of first aid measures

General advice:

Move out of dangerous area.

Consult a physician.

Show safety data sheet to the doctor in attendance.

If inhaled:

Consult a physician after significant exposure.

In case of skin contact:

Take off contaminated clothing and shoes immediately.

Wash the skin immediately with soap and water.

If skin irritation persists, call a physician.

In case of eye contact:

Rinse with plenty of water.

Remove contact lenses.

Protect unharmed eye.

Keep eye wide open while rinsing.

If eye irritation persists, consult a specialist.

If swallowed:

Clean mouth with water and drink afterwards plenty of water.

Never give anything by mouth to an unconscious person.

Obtain medical attention.

Most important symptoms and effects, both acute and delayed


The symptoms and effects are as expected from the hazards as shown in section 2. No specific product related symptoms

are known.


May cause an allergic skin reaction.

May damage fertility or the unborn child.

Indication of any immediate medical attention and special treatment needed


Treat symptomatically.

Fire-fighting measures

Extinguishing media

Suitable extinguishing media:

Use water spray, alcohol-resistant foam, dry chemical or carbon dioxide.

Unsuitable extinguishing media:

High volume water jet

Special hazards arising from the substance or mixture

Specific hazards during firefighting / Specific hazards arising from the chemical:

CAUTION: reignition may occur.

Supports combustion.

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

Water spray may be ineffective unless used by experienced firefighters.

Do not allow run-off from fire fighting to enter drains or water courses.

Heating may cause decomposition with release of toxic fumes.

Combustion products:

Fire will produce smoke containing hazardous combustion products (see section 10).

Advice for firefighters

Special protective equipment for firefighters:

In the event of fire, wear self-contained breathing apparatus.

Further information:

Use water spray to cool unopened containers.

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.

Accidental release measures

Personal precautions, protective equipment and emergency procedures

Personal precautions:

Use personal protective equipment.

Wear respiratory protection.

Ensure adequate ventilation.

Remove all sources of ignition.

Environmental precautions

Environmental precautions:

Prevent product from entering drains.

If the product contaminates rivers and lakes or drains inform

respective authorities.

Methods and materials for containment and cleaning up

Methods for cleaning up / Methods for containment:

Keep wetted with water.

Soak up with inert absorbent material and dispose of as hazardous waste.

Confinement must be avoided.

Pick up and arrange disposal without creating dust.

Keep in suitable, closed containers for disposal.

Never return spills in original containers for re-use.

Reference to other sections

Additional advice:

For personal protection see section 8.

Handling and storage

Precautions for safe handling

Advice on safe handling:

For personal protection see section 8.

Avoid formation of respirable particles.

Do not breathe vapours/dust.

Avoid contact with skin.

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

Open drum carefully as content may be under pressure.

Dispose of rinse water in accordance with local and national regulations.

Obtain special instructions before use.

Advice on protection against fire and explosion:

Use explosion protected equipment.

Provide appropriate exhaust ventilation at places where dust is formed.

Keep away from sources of ignition - No smoking.

No sparking tools should be used.

Keep away from reducing agents (e.g. amines), acids, alkalies and heavy metal compounds (e.g. accelerators, driers, metal soaps).

Do not cut or weld on or near this container even when empty.

Keep away from combustible material.

Temperature class:

It is recommended to use electrical equipment of temperature group T3. However, autoignition can never be excluded.

Conditions for safe storage, including any incompatibilities

Requirements for storage areas and containers:

Prevent unauthorized access.

No smoking.

Electrical installations / working materials must comply with the technological safety standards.

Keep only in original container.

Store away from other materials.

Maximum storage temperature:

30 °C

Other data:

No decomposition if stored and applied as directed.

Specific end use(s)

Specific use(s):

Consult the technical guidelines for the use of this substance/mixture.

Transport information

Land transport (UN RTDG/ADR/RID)

UN number:
UN 3106
Shippingopen allclose all
SpecialProvisionsopen allclose all

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

UN number:
UN 3106
Shippingopen allclose all
Remarksopen allclose all

Marine transport (UN RTDG/IMDG)

UN number:
UN 3106
Shipping information
Proper shipping name and description:
ORGANIC PEROXIDE TYPE D, SOLID (Di(2,4-dichlorobenzoyl) peroxide)
Chemical name:
Di(2,4-dichlorobenzoyl) peroxide
Remarksopen allclose all

Air transport (UN RTDG/ICAO/IATA)

UN number:
UN 3106
Shipping information
Proper shipping name and description:
ORGANIC PEROXIDE TYPE D, SOLID (Di(2,4-dichlorobenzoyl) peroxide)
Chemical name:
Di(2,4-dichlorobenzoyl) peroxide
Remarksopen allclose all
SpecialProvisionsopen allclose all

Exposure controls / personal protection

Exposure controls

Engineering controls

Explosion proof ventilation recommended.

Personal protective equipment

Respiratory protection:

Handle in accordance with good industrial hygiene and safety practice.

Hand protection:



Eye protection:

Tightly fitting safety goggles

Skin and body protection:

Protective suit

Hygiene measures:

Handle in accordance with good industrial hygiene and safety practice.

When using do not eat or drink.

When using do not smoke.

Wash hands before breaks and at the end of workday.

Wash contaminated clothing before re-use.

Environmental exposure controls

General advice:

Prevent product from entering drains.

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

Stability and reactivity


Stable under normal conditions.

Chemical stability

Stable under recommended storage conditions.

Possibility of hazardous reactions

No dangerous reaction known under conditions of normal use.

Conditions to avoid

Conditions to avoid:

Confinement must be avoided.

Heat, flames and sparks.

Incompatible materials

Materials to avoid:

Contact with the following incompatible materials will result in hazardous decomposition:

Acids and bases



Reducing agents

Heavy metals


Do not mix with peroxide accelerators, unless under controlled processing.

Use only stainless steel 316, PP, polyethylene or glass-lined equipment.

For queries regarding the suitability of other materials please contact the supplier.

Hazardous decomposition products

Hazardous decomposition products:

Carbon oxides



2,4-Dichlorobenzoic acid

Thermal decomposition:

SADT - (Self accelerating decomposition temperature) is the lowest temperature at which self accelerating decomposition may occur with a substance in the packaging as used in transport. A dangerous self-accelerating decomposition reaction and, under certain circumstances, explosion or fire can be caused by thermal decomposition at and above the SADT. Contact with incompatible substances can cause decomposition below the SADT.

Self-Accelerating decomposition temperature (SADT): 60 °C

Disposal considerations

Waste treatment methods


Do not dispose of waste into sewer.

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

Hazardous waste

Dispose of contents/container in accordance with local regulation.

Contaminated packaging:

Empty remaining contents.

Dispose of as unused product.

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

Due to the high risk of contamination recycling/recovery is not recommended.

Follow all warnings even after the container is emptied.