Registration Dossier
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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 246-690-9 | CAS number: 25167-70-8
- Life Cycle description
- Uses advised against
- Endpoint summary
- Appearance / physical state / colour
- Melting point / freezing point
- Boiling point
- Density
- Particle size distribution (Granulometry)
- Vapour pressure
- Partition coefficient
- Water solubility
- Solubility in organic solvents / fat solubility
- Surface tension
- Flash point
- Auto flammability
- Flammability
- Explosiveness
- Oxidising properties
- Oxidation reduction potential
- Stability in organic solvents and identity of relevant degradation products
- Storage stability and reactivity towards container material
- Stability: thermal, sunlight, metals
- pH
- Dissociation constant
- Viscosity
- Additional physico-chemical information
- Additional physico-chemical properties of nanomaterials
- Nanomaterial agglomeration / aggregation
- Nanomaterial crystalline phase
- Nanomaterial crystallite and grain size
- Nanomaterial aspect ratio / shape
- Nanomaterial specific surface area
- Nanomaterial Zeta potential
- Nanomaterial surface chemistry
- Nanomaterial dustiness
- Nanomaterial porosity
- Nanomaterial pour density
- Nanomaterial photocatalytic activity
- Nanomaterial radical formation potential
- Nanomaterial catalytic activity
- Endpoint summary
- Stability
- Biodegradation
- Bioaccumulation
- Transport and distribution
- Environmental data
- Additional information on environmental fate and behaviour
- Ecotoxicological Summary
- Aquatic toxicity
- Endpoint summary
- Short-term toxicity to fish
- Long-term toxicity to fish
- Short-term toxicity to aquatic invertebrates
- Long-term toxicity to aquatic invertebrates
- Toxicity to aquatic algae and cyanobacteria
- Toxicity to aquatic plants other than algae
- Toxicity to microorganisms
- Endocrine disrupter testing in aquatic vertebrates – in vivo
- Toxicity to other aquatic organisms
- Sediment toxicity
- Terrestrial toxicity
- Biological effects monitoring
- Biotransformation and kinetics
- Additional ecotoxological information
- Toxicological Summary
- Toxicokinetics, metabolism and distribution
- Acute Toxicity
- Irritation / corrosion
- Sensitisation
- Repeated dose toxicity
- Genetic toxicity
- Carcinogenicity
- Toxicity to reproduction
- Specific investigations
- Exposure related observations in humans
- Toxic effects on livestock and pets
- Additional toxicological data
Guidance on Safe Use
Administrative data
First-aid measures
Product-Specific hazards and other issues :
Vapors may cause drowsiness and dizziness
Causes moderate skin irritation
Moderate eye irritation
Harmful: may cause lung damage if swallowed)
Risk of serious damage to the lungs (by aspiration)
General advice :
Always observe self-protection methods.
Move out of dangerous area.
Remove contaminated shoes and clothing
Consult a physician.
Show this material safety data sheet to the doctor in attendance.
Inhalation :
Move to fresh air
Do not leave the victim unattended
Keep patient warm and at rest
Immediately seek medical attention
If breathing is difficult, give oxygen
If unconscious place in recovery position and seek medical advice.
In the event of unconsciousness, apnoea or cardiac arrest (no pulse) apply cardiopulmonary resuscitation
Skin contact :
Take off contaminated clothing and shoes immediately.
Immediately flush affected area with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoe
Eye contact :
Flush eyes with water thoroughly and continuously for 15 minutes
Remove contact lenses
Protect unharmed eye
Keep eye wide open while rinsing
If eye irritation persists, consult a specialist
Ingestion :
Clean mouth with water and drink afterwards plenty of water.
Do NOT induce vomiting.
Do not give milk or alcoholic beverages.
Never give anything by mouth to an unconscious person
DO NOT induce vomiting. If vomiting does occur, have victim lean forward to reduce risk of aspiration. Get medical attention immediately
Advice to Physician :
Causes eye irritation. May cause irritation to the eyes. This irritation can result in redness and swelling of the eyes.)
May cause irritation to the skin. This irritation can result in redness and swelling of the skin. Repeated contact with the skin may cause it to become dry and cracked.
If inhalation occurs, signs and symptoms may include coughing, choking, wheezing, difficulty in breathing, chest congestion, shortness of breath, and/or fever.
choking, or shortness of breath and may cause transient central nervous system (CNS) depression
The onset of respiratory symptoms may be delayed for several hours after exposure.
Formation of toxic pulmonary edema is possible.
Inhalation may cause CNS depression. Symptoms and signs include headache, dizziness, fatigue Lack of coordination
High doses may cause CNS depression (fatigue, dizziness and possibly loss of concentration, with collapse, coma and death in cases of severe over-exposure).
In case of ingestion, the stomach should be emptied by gastric lavage under qualified medical supervision.
Fire-fighting measures
Product-specific hazards and other issues :
Suitable extinguishing media :
LARGE FIRE: Use water spray, water fog or foam. DO NOT use straight streams
SMALL FIRE: Dry chemical Carbon dioxide (CO2) Dry sand
Unsuitable Extinguishing Media :
Do NOT use 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 :
Do not allow run-off from fire fighting to enter drains or water courses.
Further information :
Use water spray to cool unopened containers.
Special protective equipment for fire-fighters :
Wear an approved positive pressure self-contained breathing apparatus and
firefighter turnout gear.
Accidental release measures
Product-specific hazards and other issues :
General information :
Personal precautions :
Land spillage :
Prevent product from entering drains.
Spillages in water or at sea :
Prevent further leakage or spillage if safe to do so.
If the product contaminates rivers and lakes or drains inform respective authorities.
Methods for cleaning up :
Contain spillage, and then collect with non-combustible absorbent material, (e.g. sand, earth,
diatomaceous earth, vermiculite) and place in container for disposal according to local / national
regulations.
Further accidental release measures :
Spillages of liquid product will create a fire hazard and form an explosive atmosphere
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.
Handling and storage
Product-specific hazards and other issues :
General information :
Advice on safe handling :
Smoking, eating and drinking should be prohibited in the application area.
Use only in well ventilated areas.
Take precautionary measures against static discharges.
Container may be opened only under exhaust ventilation hood.
Do not allow splash filling of bulk volumes.
Avoid contact with heat and ignition sources and oxidizers.
Dispose of rinse water in accordance with local and national regulations.
The vapor is heavier than air. Beware of accumulation in pits and confined spaces.
Cleaning, inspection and maintenance of the internal structure of storage tanks must be done
only by properly equipped and qualified personnel as defined by national, local or company
regulations.
Handle empty containers with care; vapor/residue may be flammable.
Do not pressurize, cut, weld, braze solder, drill, or grind on containers.
Advice on protection against fire and explosion :
The product will float and can be reignited on surface water
Keep away from sources of ignition - No smoking.
Take measures to prevent the build up of electrostatic charge.
Ensure that all relevant regulations regarding explosive atmospheres, and handling and storage
facilities of flammable products are followed.
Do not use compressed air for filling, discharging or handling.
Storage :
Requirements for storage areas and containers:
No smoking.
Keep in a well-ventilated place.
Store in original container..
Containers which are opened must be carefully resealed and kept upright to prevent leakage.
Electrical installations / working materials must comply with the technological safety standards.
Keep container tightly closed and properly labeled.
Vapor space above stored liquid may be flammable/explosive unless blanketed with inert gas.
Storage installations should be designed with adequate bunds so as to prevent ground and
water pollution in case of leaks or spills.
Storage area layout, tank design, equipment and operating procedures must comply with the
relevant European, national or local legislation.
Recommended and Unsuitable Materials for Storage :
Container Advice :
Storage in carbon steel is recommended
Further information on storage conditions :
Advice on common storage :
Other data :
No decomposition if stored and applied as directed.
Transport information
Land transport (UN RTDG/ADR/RID)
- UN number:
- UN-Number : 2050
Description of the goodsDiisobutylene, isomeric compounds
Shippingopen allclose all
SpecialProvisionsopen allclose all
Inland waterway transport (UN RTDG/ADN(R))
- UN number:
- UN-Number : 2050
Description of the goodsDiisobutylenes, isomeric compounds
Shippingopen allclose all
Remarksopen allclose all
Marine transport (UN RTDG/IMDG)
- UN number:
- UN-Number : 2050
Shipping information
- Proper shipping name and description:
- Description of the goods: Diisobutylene, isomeric compounds
- Chemical name:
- 2,4,4-Trimethylpentene
- Labels:
- Labels: 3
Remarksopen allclose all
Air transport (UN RTDG/ICAO/IATA)
Shippingopen allclose all
Special provisions / remarks
- Remarks:
- This way of transportation is not supported by Lyondell Basell Industries.
SpecialProvisionsopen allclose all
Exposure controls / personal protection
Not applicable.
The substance is an Intermediate handled under Strictly Controlled Conditions.
Old IUCLID4 record from ECB dataset IUC4#1/Ch.1.8.1
- Occupational Exposure Limit
- None established , data not available , No exposure limit values.
Stability and reactivity
Chemical stability :
This material is stable when properly handled and stored.
Conditions to avoid :
Heat, sparks, open flame, and other ignition sources. Contact with incompatible materials in a
closed system.
Materials to avoid :
React vigorously with oxidizing materials.
Hazardous decomposition products :
Incomplete combustion can result in the production of carbon monoxide, carbon dioxide and
other toxic gases.
Hazardous polymerization :
Will not occur.
Reactions with Air and Water :
Not expected to occur.
Disposal considerations
Contaminated product, soil, water, container residues and spill cleanup materials may be hazardous wastes. The product should not be allowed to enter drains, water courses or the soil. Dispose of in accordance with local regulations.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.