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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

First-aid measures

Product-Specific hazards:

Flammable liquid and vapour.

Causes skin irritation.

Causes eye irritation.

May cause respiratory irritation.

Risk of serious damage to the lungs if swallowed (by subsequent aspiration).

General advice :

Take care to self-protect by avoiding becoming contaminated.

Use adequate respiratory protection

Move contaminated patient(s) out of the dangerous area.

Take off all contaminated clothing and shoes.

Seek medical assistance - show the safety data sheet or label if possible.

Inhalation :

Move to fresh air.

Do not leave the victim unattended.

Keep patient warm and at rest.

Seek immediate medical attention.

If breathing is difficult, give oxygen if possible or assisted ventilation, (do not use mouth to mouth).

If unconscious, place in recovery position.

In the event of cardiac arrest (no pulse),  apply cardiopulmonary resuscitation.

Skin contact :

Take off all contaminated clothing, shoes and leather wearings.

Immediately flush affected area with plenty of soap and water – continue for at least 15 minutes.

If there are signs of irritation or other symptoms seek medical attention.

Launder clothing before reuse.

Eye contact :

Remove any contact lenses.

Flush eyes with warm water thoroughly and continuously for at least 20 minutes.

Keep eye wide open while  rinsing.

Protect unharmed eye.

Seek medical attention.

If eye irritation, pain, swelling, lachrimation or photophobia persists or appear, patient should be referred to a specialist health care facility.

Ingestion :

Do NOT induce vomiting, if vomiting does occur, have victim lean forward to reduce risk of aspiration.

Get medical attention immediately.

Clean mouth with water and drink afterwards plenty of water.

Do not give milk or alcoholic beverages.

Never give anything by mouth to an unconscious person.

Advice to Physician :

Causes irritation to the skin.

Causes eye irritation.

May cause respiratory irritation.

If inhalation occurs, signs and symptoms may include sore throat, headache, nausea, coughing, choking, wheezing, difficulty in breathing, chest congestion, shortness of breath and may cause transient central nervous system (CNS) depression.

In case of ingestion, induced emesis is not recommended.

If determined necessary (and under qualified medical supervision), the stomach should be emptied by gastric lavage with the airway protected by endotracheal intubation.

If spontaneous vomiting has occurred after ingestion, the patient should be monitored for difficutl breathing, as adverse effects of aspiration into the lungs may be delayed up to 48 hours.

Fire-fighting measures

Suitable extinguishing media :

Large fires: Use water spray, water fog or foam. DO NOT use direct water jet.

Small fires: Dry powder or carbon dioxide (CO2) extinguisher or fire fighting foam.

Unsuitable Extinguishing Media :

Direct water jet.

Simultaneous use of foam and water on the same surface is to be avoided as water destroys the foam.

Combustion Products :

Carbon monoxide, carbon dioxide and unburned hydrocarbons (smoke).

Specific hazards during fire fighting :

Vapour is denser than air – flashback may be possible over considerable distances.

Containers may explode under fire conditions - use water spray to cool unopened containers.

Do not allow run-off from fire fighting to enter drains or water courses – may cause explosion hazard in drains and may reignite on surface water.

Vapor forms an explosive mixture with air.

Further information :

The vapour is heavier than air and can be concentrated at bottom of vessels or ground level.

Keep vapours away from possible ignition sources.

Special protective equipment for fire-fighters :

Wear an approved positive pressure self-contained breathing apparatus in addition to standard fire fighting clothing.

Accidental release measures

Personal precautions, protective equipment and emergency procedure

Wear protective equipment:  Eyes: chemical goggles and/or face shield;  Hands: neoprene gloves;  Clothing: If direct contact is likely use rubberized coveralls or apron; Respiratory: With filter suitable to protect agains organic mists and vapours.

Spillages of liquid product will create a fire hazard and form an explosive atmosphere.

Ensure all equipment is non sparking or electrically bonded.

Avoid direct contact with released material.

Stay upwind.

Keep non-involved personnel away from the area of spillage.

Ensure adequate ventilation, especially in confined areas.

Environmental Precautions

Land spillage :

Prevent further leakage or spillage if safe to do so.

Prevent spillage from entering drains, sewer, basement or confined areas.

Water spillage :

Prevent further leakage or spillage if safe to do so.

Material may float on water and any runoff may create an explosion or fire hazard if ignited

If the spillage contaminates rivers, lakes or drains inform respective authorities.

Methods for clean up :

Minor spillage:

Contain spillage.

Small spillages can be taken up by collection with non-combustible absorbent material, (e.g. sand, earth, diatomaceous earth, vermiculite).

Collect residues in a flammable waste container for disposal according to local / national regulations.

Major spillage:

Contain spillage.

Clean are of personnel and move upwind.

Alert emergency services and inform them accordingly.

Pump with explosion-proof equipment.

If available, use water spray or fog to dispers/absorb vapors.

Collect recoverable product into labeled containers for recycling.

Absorb remaining product as small spillages.

Wash area and prevent runoff into drains

Handling and storage

Advice on safe handling :

Smoking, eating and drinking should be prohibited.

Use only in well ventilated areas.

Avoid all sources of ignition.

Use proper bonding and/or grounding procedures.

This material is a static accumulator: Take precautionary measures against static discharges.

Containers should be opened only under exhaust ventilation hood.

Do not allow splash filling of bulk volumes.

Do not use compressed air for filling, discharging or handling.

Cleaning, inspection and maintenance of the internal structure of storage tanks must be doneonly by properly equipped and qualified personnel as defined by national, local or company


Handle empty containers with care; vapour residue may be flammable.

Do not pressurise, cut, weld, braze, solder, drill, or grind on containers.

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

The vapour is heavier than air, beware of accumulation in pits and confined spaces.

The product will float on water and can be reignited on surface water.

Ensure that all relevant regulations regarding explosive atmospheres, and handling and storage facilities of flammable products are followed.

Storage :

No smoking.

Store in either steel, iron or galvanized iron containers or vessels.

Store in a designated cool and well-ventilated place.

Store in the original, tightly closed, container.

Containers which are opened must be carefully resealed and kept upright to prevent leakage.

Keep container tightly closed and properly labelled.

Vapour space above stored liquid may be flammable/explosive unless blanketed with inert gas.

Avoid contact with heat and ignition sources.

Storage installations should be designed with adequate bunds so as to prevent ground and water pollution in case of leaks or spills.

Fixed storage containers, transfer containers and associated equipment should be earthed and bonded to prevent accumulation of static charge.

1,4-diethylbenzene is stable stored in closed containers at room temperature.

No danger of polymerisation.

Avoid contact with oxidising agents, strong acids and bases.

Transport information

Land transport (UN RTDG/ADR/RID)

UN number:
Shipping information
Proper shipping name and description:
Chemical name:
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Inland waterway transport (UN RTDG/ADN(R))

UN number:
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Marine transport (UN RTDG/IMDG)

UN number:
Shipping information
Proper shipping name and description:
Chemical name:
Marine pollutant
Special provisions / remarks
The classification as marine pollutant is based on the Classification according to GHS UN Category 2

Air transport (UN RTDG/ICAO/IATA)

UN number:
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Exposure controls / personal protection

Stability and reactivity

Disposal considerations