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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

INHALATION

Remove from further exposure.  For those providing assistance, avoid exposure to yourself or others.  Use adequate respiratory protection.  If respiratory irritation, dizziness, nausea, or unconsciousness occurs, seek immediate medical assistance.  If breathing has stopped, assist ventilation with a mechanical device or use mouth-to-mouth resuscitation.

SKIN CONTACT

Wash contact areas with soap and water.  Remove contaminated clothing.  Launder contaminated clothing before reuse.

EYE CONTACT

Flush thoroughly with water.  If irritation occurs, get medical assistance.

INGESTION

Seek immediate medical attention.  Do not induce vomiting.

NOTE TO PHYSICIAN

If ingested, material may be aspirated into the lungs and cause chemical pneumonitis.  Treat appropriately.  This light hydrocarbon material, or a component, may be associated with cardiac sensitisation following very high exposures (well above occupational exposure limits) or with concurrent exposure to high stress levels or heart-stimulating substances like epinephrine.  Administration of such substances should be avoided.

Fire-fighting measures

EXTINGUISHING MEDIA

Appropriate Extinguishing Media:  Use foam, dry chemical, or carbon dioxide (CO2) to extinguish flames.

Inappropriate Extinguishing Media:  Straight streams of water

FIRE FIGHTING

Fire Fighting Instructions:  Evacuate area.  If a leak or spill has not ignited, use water spray to disperse the vapours and to protect personnel attempting to stop a leak.  Prevent run-off from fire control or dilution from entering streams, sewers or drinking water supply.  Fire-fighters should use standard protective equipment and in enclosed spaces, self-contained breathing apparatus (SCBA).   Use water spray to cool fire exposed surfaces and to protect personnel.

Unusual Fire Hazards:  Extremely Flammable.  Vapour is flammable and heavier than air.  Vapour may travel across the ground and reach remote ignition sources, causing a flashback fire danger.  Hazardous material.

Hazardous Combustion Products:   Smoke, Fume, Incomplete combustion products, Oxides of carbon

Accidental release measures

NOTIFICATION PROCEDURES

In the event of a spill or accidental release, notify relevant authorities in accordance with all applicable regulations.

PROTECTIVE MEASURES

Avoid contact with spilled material.  Warn or evacuate occupants in surrounding and downwind areas if required, due to toxicity or flammability of the material.  

SPILL MANAGEMENT

Land Spill:  Eliminate all ignition sources (no smoking, flares, sparks or flames in immediate area).  Stop leak if you can do so without risk.  All equipment used when handling the product must be grounded.  Do not touch or walk through spilled material.  Prevent entry into waterways, sewer, basements or confined areas.  A vapour-suppressing foam may be used to reduce vapour.  Use clean non-sparking tools to collect absorbed material.  Absorb or cover with dry earth, sand or other non-combustible material and transfer to containers.  Large Spills:  Water spray may reduce vapour, but may not prevent ignition in enclosed spaces.

Water Spill:  Eliminate all ignition sources (no smoking, flares, sparks or flames in immediate area).  Stop leak if you can do so without risk.  Do not confine in area of spill.  Advise occupants and shipping in downwind areas of fire and explosion hazard and warn them to stay clear.   Allow liquid to evaporate from the surface.  Seek the advice of a specialist before using dispersants.

Water spill and land spill recommendations are based on the most likely spill scenario for this material; however, geographic conditions, wind, temperature, (and in the case of a water spill) wave and current direction and speed may greatly influence the appropriate action to be taken.  For this reason, local experts should be consulted.  Note:  Local regulations may prescribe or limit action to be taken.

ENVIRONMENTAL PRECAUTIONS

Large Spills:  Dyke far ahead of liquid spill for later recovery and disposal.  Prevent entry into waterways, sewers, basements or confined areas.

Handling and storage

HANDLING

Avoid contact with skin.  Prevent exposure to ignition sources, for example use non-sparking tools and explosion-proof equipment.  Use only with adequate ventilation. Prevent small spills and leakage to avoid slip hazard.   Tanker trucks shall have a steel tank and chassis and be equipped with conductive hoses. Bulk liquid containers shall be IMO Type 1 with 4 bar working pressure and 6 bar test pressure, filled between 80 and 95% A vapour return connection must be present on the truck or BLC to allow vapour return during unloading. The maximum loading/unloading velocity is 6M/second. Loading/unloading pumps shall be explosion proof. Bulk storage may be in above-ground or underground bullet type tanks. For above-ground tanks, a tank design pressure of at least 2.5 bar gauge is recommended. Tanks shall have overfill protection. Pentane storage facilities are normally operated at near atmospheric pressure. However, to avoid exhaust to the atmosphere, storage tanks shall be fitted with a pressure vent and a vacuum vent. Drum types shall be selected so that the high vapour pressure of the liquids considered does not cause excessive deformation of the drum heads at the maximum transport and storage temperature.  If maximum allowed storage temperature indicated on drum label is exceeded, the drum shall be cooled down. It shall not be opened before having cooled down well below this temperature. For further information please refer to the "Pentane Handling Guidelines" published by ExxonMobil Chemical Company or contact ExxonMobil Chemical Company directly.  Material can accumulate static charges which may cause an electrical spark (ignition source).  Use proper bonding and/or ground procedures.  However, bonding and grounds may not eliminate the hazard from static accumulation.  Consult local applicable standards for guidance.  Additional references include American Petroleum Institute 2003 (Protection Against Ignitions Arising out of Static, Lightning and Stray Currents) or National Fire Protection Agency 77 (Recommended Practice on Static Electricity) or CENELEC CLC/TR 50404 (Electrostatics - Code of practice for the avoidance of hazards due to static electricity).

Loading/Unloading Temperature:   < 28°C  (82°F)

Transport Temperature:   < 28°C  (82°F)

Transport Pressure:     [Ambient]

Static Accumulator:   This material is a static accumulator.  A liquid is typically considered a nonconductive, static accumulator if its conductivity is below 100 pS/m (100x10E-12 Siemens per meter) and is considered a semiconductive, static accumulator if its conductivity is below 10,000 pS/m.  Whether a liquid is nonconductive or semiconductive, the precautions are the same.  A number of factors, for example liquid temperature, presence of contaminants, anti-static additives and filtration can greatly influence the conductivity of a liquid.

STORAGE

Ample fire water supply should be available.  A fixed sprinkler/deluge system is recommended.  The container choice, for example storage vessel, may effect static accumulation and dissipation.  Keep container closed. Handle containers with care. Open slowly in order to control possible pressure release.  Store in a cool, well-ventilated area.   Outside or detached storage preferred.  Storage containers should be earthed and bonded.  Fixed storage containers, transfer containers and associated equipment should be earthed and bonded to prevent accumulation of static charge.

Storage Temperature:     < 28°C  (82°F)

Storage Pressure:     [Ambient]

Suitable Containers/Packing:   Tank Trucks; Bulk Liquid Container (BLC); Barges; Drums

Suitable Materials and Coatings (Chemical Compatibility):   Carbon Steel; Stainless Steel; Polyethylene; Polypropylene; Polyester; Teflon

Unsuitable Materials and Coatings:   Natural Rubber; Butyl Rubber; Ethylene-proplyene-diene monomer (EPDM); Polystyrene

Transport information

Land transport (UN RTDG/ADR/RID)

UN number:
1265
Shipping information
Proper shipping name and description:
PENTANES
Language:
English
Labels:
3, EHS
Special provisions / remarks
Remarks:
Transport Document Name: UN1265, PENTANES, 3, PG I
Hazard ID Number: 33
Hazchem EAC: 3YE

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

UN number:
1265
Shipping information
Proper shipping name and description:
PENTANES (2-METHYLBUTANE)
Language:
English
Labels:
3 (N2), EHS
Special provisions / remarks
Remarks:
Transport Document Name: UN1265, PENTANES (2-METHYLBUTANE), 3 (N2), PG I
Hazard ID Number: 33

Marine transport (UN RTDG/IMDG)

UN number:
1265
Shipping information
Proper shipping name and description:
PENTANES
Labels:
3
Marine pollutant
Special provisions / remarks
Remarks:
Transport Document Name: UN1265, PENTANES, 3, PG I, (-18°C c.c.), MARINE POLLUTANT

Air transport (UN RTDG/ICAO/IATA)

UN number:
1265
Shipping information
Proper shipping name and description:
PENTANES
Labels:
3
Special provisions / remarks
Remarks:
Transport Document Name: UN1265, PENTANES, 3, PG I
SpecialProvisionsopen allclose all

Exposure controls / personal protection

ENGINEERING CONTROLS

The level of protection and types of controls necessary will vary depending upon potential exposure conditions. Control measures to consider:

Adequate ventilation should be provided so that exposure limits are not exceeded.  Use explosion-proof ventilation equipment.

PERSONAL PROTECTION

Personal protective equipment selections vary based on potential exposure conditions such as applications, handling practices, concentration and ventilation.  Information on the selection of protective equipment for use with this material, as provided below, is based upon intended, normal usage.  

Respiratory Protection:   If engineering controls do not maintain airborne contaminant concentrations at a level which is adequate to protect worker health, an approved respirator may be appropriate.  Respirator selection, use, and maintenance must be in accordance with regulatory requirements, if applicable.  Types of respirators to be considered for this material include:

Half-face filter respirator   Type AX filter material, European Committee for Standardization (CEN) standards EN 136, 140 and 405 provide respirator masks and EN 149 and 143 provide filter recommendations.

For high airborne concentrations, use an approved supplied-air respirator, operated in positive pressure mode.  Supplied air respirators with an escape bottle may be appropriate when oxygen levels are inadequate, gas/vapour warning properties are poor, or if air purifying filter capacity/rating may be exceeded.

Hand Protection:   Any specific glove information provided is based on published literature and glove manufacturer data.  Glove suitability and breakthrough time will differ depending on the specific use conditions. Contact the glove manufacturer for specific advice on glove selection and breakthrough times for your use conditions. Inspect and replace worn or damaged gloves. The types of gloves to be considered for this material include:

If prolonged or repeated contact is likely, chemical-resistant gloves are recommended.  If contact with forearms is likely, wear gauntlet-style gloves.   Nitrile, CEN standards EN 420 and EN 374 provide general requirements and lists of glove types.

Eye Protection:   If contact is likely, safety glasses with side shields are recommended.

Skin and Body Protection:    Any specific clothing information provided is based on published literature or manufacturer data.  The types of clothing to be considered for this material include:

If prolonged or repeated contact is likely, chemical, and oil resistant clothing is recommended.

Specific Hygiene Measures:   Always observe good personal hygiene measures, such as washing after handling the material and before eating, drinking, and/or smoking.  Routinely wash work clothing and protective equipment to remove contaminants.  Discard contaminated clothing and footwear that cannot be cleaned. Practice good housekeeping.

Stability and reactivity

STABILITY:  Material is stable under normal conditions.

CONDITIONS TO AVOID:  Avoid heat, sparks, open flames and other ignition sources.

MATERIALS TO AVOID:   Strong oxidisers

HAZARDOUS DECOMPOSITION PRODUCTS:  Material does not decompose at ambient temperatures.

HAZARDOUS POLYMERIZATION:  Will not occur.

Disposal considerations

Disposal recommendations based on material as supplied.  Disposal must be in accordance with current applicable laws and regulations, and material characteristics at time of disposal.

DISPOSAL RECOMMENDATIONS

Product is suitable for burning in an enclosed controlled burner for fuel value or disposal by supervised incineration at very high temperatures to prevent formation of undesirable combustion products.

REGULATORY DISPOSAL INFORMATION

European Waste Code:  08 XX XX

NOTE:  These codes are assigned based upon the most common uses for this material and may not reflect contaminants resulting from actual use.  Waste producers need to assess the actual process used when generating the waste and its contaminants in order to assign the proper waste disposal code(s).

Empty Container Warning Empty Container Warning (where applicable):  Empty containers may contain residue and can be dangerous.  Do not attempt to refill or clean containers without proper instructions.  Empty drums should be completely drained and safely stored until appropriately reconditioned or disposed.  Empty containers should be taken for recycling, recovery, or disposal through suitably qualified or licensed contractor and in accordance with governmental regulations.  DO NOT PRESSURISE, CUT, WELD, BRAZE, SOLDER, DRILL, GRIND, OR EXPOSE SUCH CONTAINERS TO HEAT, FLAME, SPARKS, STATIC ELECTRICITY, OR OTHER SOURCES OF IGNITION.  THEY MAY EXPLODE AND CAUSE INJURY OR DEATH.