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    Home > Isopentane SDS

    Isopentane Safety Data Sheets


    According to the UN GHS revision 8

    Version: 1.0

    Creation Date: July 15, 2019

    Revision Date: July 15, 2019

    SECTION 1: Identification

    1.1 GHS Product identifier

    Product name


    1.2 Other means of identification

    Product number


    Other names


    1.3 Recommended use of the chemical and restrictions on use

    Identified uses

    Fuels and fuel additives,Intermediates,Processing aids, not otherwise listed,Propellants and blowing agents

    Uses advised against

    no data available

    1.4 Supplier's details




    1.5 Emergency phone number

    Emergency phone number

    Service hours

    Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

    SECTION 2: Hazard identification

    2.1 Classification of the substance or mixture

    Flammable liquids, Category 1

    Aspiration hazard, Category 1

    Specific target organ toxicity – single exposure, Category 3

    Hazardous to the aquatic environment, long-term (Chronic) - Category Chronic 2

    2.2 GHS label elements, including precautionary statements

    Signal word


    Hazard statement(s)

    H224 Extremely flammable liquid and vapour

    H304 May be fatal if swallowed and enters airways

    H336 May cause drowsiness or dizziness

    H411 Toxic to aquatic life with long lasting effects

    Precautionary statement(s)

    P210 Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.

    P233 Keep container tightly closed.

    P240 Ground and bond container and receiving equipment.

    P241 Use explosion-proof [electrical/ventilating/lighting/...] equipment.

    P242 Use non-sparking tools.

    P243 Take action to prevent static discharges.

    P280 Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/...

    P261 Avoid breathing dust/fume/gas/mist/vapours/spray.

    P271 Use only outdoors or in a well-ventilated area.

    P273 Avoid release to the environment.


    P303+P361+P353 IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse affected areas with water [or shower].

    P370+P378 In case of fire: Use ... to extinguish.

    P301+P316 IF SWALLOWED: Get emergency medical help immediately.

    P331 Do NOT induce vomiting.

    P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing.

    P319 Get medical help if you feel unwell.

    P391 Collect spillage.


    P403+P235 Store in a well-ventilated place. Keep cool.

    P405 Store locked up.

    P403+P233 Store in a well-ventilated place. Keep container tightly closed.


    P501 Dispose of contents/container to an appropriate treatment and disposal facility in accordance with applicable laws and regulations, and product characteristics at time of disposal.

    2.3 Other hazards which do not result in classification

    no data available

    SECTION 3: Composition/information on ingredients

    3.1 Substances

    Chemical name Common names and synonyms CAS number EC number Concentration
    2-methylbutane 2-methylbutane 78-78-4 201-142-8 100%

    SECTION 4: First-aid measures

    4.1 Description of necessary first-aid measures

    If inhaled

    Fresh air, rest. Refer for medical attention.

    Following skin contact

    First rinse with plenty of water for at least 15 minutes, then remove contaminated clothes and rinse again.

    Following eye contact

    Rinse with plenty of water (remove contact lenses if easily possible).

    Following ingestion

    Rinse mouth. Do NOT induce vomiting. Refer immediately for medical attention.

    4.2 Most important symptoms/effects, acute and delayed

    Inhalation causes irritation of respiratory tract, cough, mild depression, irregular heartbeat. Aspiration causes severe lung irritation, coughing, pulmonary edema; excitement followed by depression. Ingestion causes nausea, vomiting, swelling of abdomen, headache, depression. (USCG, 1999)

    4.3 Indication of immediate medical attention and special treatment needed, if necessary

    Basic treatment: Establish a patent airway (oropharyngeal or nasopharyngeal airway, if needed). Suction if necessary. Watch for signs of respiratory insufficiency and assist ventilations if necessary. Administer oxygen by nonrebreather mask at 10 to 15 L/min. Monitor for pulmonary edema and treat if necessary . Anticipate seizures and treat if necessary . For eye contamination, flush eyes immediately with water. Irrigate each eye continuously with 0.9% saline (NS) during transport . Do not use emetics. For ingestion, rinse mouth and administer 5 ml/kg up to 200 ml of water for dilution if the patient can swallow, has a strong gag reflex, and does not drool. Administer activated charcoal . Treat frostbite with rapid rewarming techniques ./Aliphatic hydrocarbons and related compounds/

    SECTION 5: Fire-fighting measures

    5.1 Suitable extinguishing media

    If material on fire or involved in fire: Do not extinguish fire unless flow can be stopped. Use water in flooding quantities as fog. Solid streams of water may spread fire. Cool all affected containers with flooding quantities of water. Apply water from as far a distance as possible. Use foam, dry chemical, or carbon dioxide. Pentanes

    5.2 Specific hazards arising from the chemical

    Behavior in Fire: Highly volatile liquid. Vapors may explode when mixed with air. (USCG, 1999)

    5.3 Special protective actions for fire-fighters

    Use powder, carbon dioxide, alcohol-resistant foam, water spray. In case of fire: keep drums, etc., cool by spraying with water.

    SECTION 6: Accidental release measures

    6.1 Personal precautions, protective equipment and emergency procedures

    Evacuate danger area! Consult an expert! Personal protection: filter respirator for organic gases and vapours of low boiling point adapted to the airborne concentration of the substance. Remove all ignition sources. Do NOT let this chemical enter the environment. Collect leaking and spilled liquid in sealable containers as far as possible. Absorb remaining liquid in sand or inert absorbent. Then store and dispose of according to local regulations. Do NOT wash away into sewer.

    6.2 Environmental precautions

    Evacuate danger area! Consult an expert! Personal protection: filter respirator for organic gases and vapours of low boiling point adapted to the airborne concentration of the substance. Remove all ignition sources. Do NOT let this chemical enter the environment. Collect leaking and spilled liquid in sealable containers as far as possible. Absorb remaining liquid in sand or inert absorbent. Then store and dispose of according to local regulations. Do NOT wash away into sewer.

    6.3 Methods and materials for containment and cleaning up

    Environmental considerations: air spill: Apply water spray or mist to knock down vapors. Pentanes

    SECTION 7: Handling and storage

    7.1 Precautions for safe handling

    NO open flames, NO sparks and NO smoking. Closed system, ventilation, explosion-proof electrical equipment and lighting. Prevent build-up of electrostatic charges (e.g., by grounding). Do NOT use compressed air for filling, discharging, or handling. Use non-sparking handtools. Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.

    7.2 Conditions for safe storage, including any incompatibilities

    Fireproof. Well closed. Separated from strong oxidants. Store in an area without drain or sewer access. Provision to contain effluent from fire extinguishing.Fireproof. Well closed.

    SECTION 8: Exposure controls/personal protection

    8.1 Control parameters

    Occupational Exposure limit values

    TLV: 1000 ppm as TWA.MAK: 3000 mg/m3, 1000 ppm; peak limitation category: II(2); pregnancy risk group: C.EU-OEL: 3000 mg/m3, 1000 ppm as TWA

    Biological limit values

    no data available

    8.2 Appropriate engineering controls

    Ensure adequate ventilation. Handle in accordance with good industrial hygiene and safety practice. Set up emergency exits and the risk-elimination area.

    8.3 Individual protection measures, such as personal protective equipment (PPE)

    Eye/face protection

    Wear safety spectacles or eye protection in combination with breathing protection.

    Skin protection

    Protective gloves.

    Respiratory protection

    Use ventilation, local exhaust or breathing protection.

    Thermal hazards

    no data available

    SECTION 9: Physical and chemical properties and safety characteristics

    Physical state

    Liquid. Volatile liquid.





    Melting point/freezing point

    -159.77 °C. Atm. press.:No data. Remarks:There was no information reported as to whether the substance decomposed or sublimated.

    Boiling point or initial boiling point and boiling range

    27.8 °C. Atm. press.:760 mm Hg. Remarks:(101.325 kPa).


    Extremely flammable. Heating will cause rise in pressure with risk of bursting.

    Lower and upper explosion limit/flammability limit

    Lower flammable limit: 1.4% by volume; Upper flammable limit: 7.6% by volume

    Flash point

    -51 °C. Atm. press.:1 013 hPa.

    Auto-ignition temperature

    420 °C. Atm. press.:1 013 hPa. Remarks:Pressure not stated, therefore assumed standard.

    Decomposition temperature

    no data available


    no data available

    Kinematic viscosity

    dynamic viscosity (in mPa s) = 0.214. Temperature:25.0°C.


    less than 1 mg/mL at 73° F (NTP, 1992)

    Partition coefficient n-octanol/water

    log Pow = 4. Temperature:25 °C.;Pow = 9 930. Temperature:25 °C.

    Vapour pressure

    100 kPa. Temperature:27.5 °C.

    Density and/or relative density

    0.62 g/cm³. Temperature:20 °C.

    Relative vapour density

    2.6 (vs air)

    Particle characteristics

    no data available

    SECTION 10: Stability and reactivity

    10.1 Reactivity

    May explode on heating. Reacts with strong oxidants. This generates fire or explosion hazard.

    10.2 Chemical stability

    no data available

    10.3 Possibility of hazardous reactions

    A very dangerous fire hazard when exposed to heat, flame or oxidizers.The vapour is heavier than air and may travel along the ground; distant ignition possible. The vapour is heavier than air and may accumulate in lowered spaces causing a deficiency of oxygen.ISOPENTANE is a fire and explosion hazard when in contact with oxidizing agents. (NTP, 1992).

    10.4 Conditions to avoid

    no data available

    10.5 Incompatible materials

    Can react with oxidizing materials.

    10.6 Hazardous decomposition products

    When heated to decomposition it emits acrid smoke and irritating fumes.

    SECTION 11: Toxicological information

    Acute toxicity

    • Oral: no data available
    • Inhalation: Isoeffective air concentration - rat (males) and mouse (females) (male) - 21 000 ppm.
    • Dermal: no data available

    Skin corrosion/irritation

    no data available

    Serious eye damage/irritation

    no data available

    Respiratory or skin sensitization

    no data available

    Germ cell mutagenicity

    no data available


    no data available

    Reproductive toxicity

    no data available

    STOT-single exposure

    If swallowed the substance easily enters the airways and could result in aspiration pneumonitis. Inhalation of high concentrations of the vapour may cause depression of the central nervous system.

    STOT-repeated exposure

    The substance defats the skin, which may cause dryness or cracking.

    Aspiration hazard

    A harmful contamination of the air can be reached rather quickly on evaporation of this substance at 20°C.

    SECTION 12: Ecological information

    12.1 Toxicity

    • Toxicity to fish: LL50 - Oncorhynchus mykiss (previous name: Salmo gairdneri) - 34.05 mg/L - 96 h.
    • Toxicity to daphnia and other aquatic invertebrates: EL50 - Daphnia magna - 59.44 mg/L - 48 h.
    • Toxicity to algae: EL50 - Pseudokirchneriella subcapitata (previous names: Raphidocelis subcapitata, Selenastrum capricornutum) - 25.12 mg/L - 72 h.
    • Toxicity to microorganisms: NOEL - Tetrahymena pyriformis - 29.28 mg/L - 48 h.

    12.2 Persistence and degradability

    AEROBIC: Organisms isolated from groundwater contaminated by a gasoline spill were found to grow when inoculated with pure samples of isopentane; however, no biodegradation of isopentane was observed when a mixed culture of these organisms was inoculated with gasoline(1). A mixture containing isopentane, pentane, cyclopentane, 2,3-dimethylbutane, 2-methylpentane, 3-methylpentane, and cyclohexane, showed little degradation over the course of 30 days in a sediment/groundwater obtained from a contaminated jet fuel site in Oscoda, MI(2). Following a 6.1 day lag period, isopentane was completely degraded using an activated sludge over the course of a 20 day incubation period under aerobic conditions(3). The half-life of a mixture containing isopentane, pentane, and cyclopentane in seawater was 2.4 days(4).

    12.3 Bioaccumulative potential

    An estimated BCF of 70 was calculated in fish for isopentane(SRC), using a water solubility of 48 mg/L(1) and a regression-derived equation(2). According to a classification scheme(3), this BCF suggests the potential for bioconcentration in aquatic organisms is moderate(SRC).

    12.4 Mobility in soil

    The Koc of isopentane is estimated as 520(SRC), using a water solubility of 48 mg/L(1) and a regression-derived equation(2). According to a classification scheme(3), this estimated Koc value suggests that isopentane is expected to have low mobility in soil(SRC).

    12.5 Other adverse effects

    no data available

    SECTION 13: Disposal considerations

    13.1 Disposal methods


    The material can be disposed of by removal to a licensed chemical destruction plant or by controlled incineration with flue gas scrubbing. Do not contaminate water, foodstuffs, feed or seed by storage or disposal. Do not discharge to sewer systems.

    Contaminated packaging

    Containers can be triply rinsed (or equivalent) and offered for recycling or reconditioning. Alternatively, the packaging can be punctured to make it unusable for other purposes and then be disposed of in a sanitary landfill. Controlled incineration with flue gas scrubbing is possible for combustible packaging materials.

    SECTION 14: Transport information

    14.1 UN Number

    ADR/RID: UN1265 (For reference only, please check.) IMDG: UN1265 (For reference only, please check.) IATA: UN1265 (For reference only, please check.)

    14.2 UN Proper Shipping Name

    ADR/RID: PENTANES, liquid (For reference only, please check.) IMDG: PENTANES, liquid (For reference only, please check.) IATA: PENTANES, liquid (For reference only, please check.)

    14.3 Transport hazard class(es)

    ADR/RID: 3 (For reference only, please check.) IMDG: 3 (For reference only, please check.) IATA: 3 (For reference only, please check.)

    14.4 Packing group, if applicable

    ADR/RID: I (For reference only, please check.) IMDG: I (For reference only, please check.) IATA: I (For reference only, please check.)

    14.5 Environmental hazards

    ADR/RID: Yes IMDG: Yes IATA: Yes

    14.6 Special precautions for user

    no data available

    14.7 Transport in bulk according to IMO instruments

    no data available

    SECTION 15: Regulatory information

    15.1 Safety, health and environmental regulations specific for the product in question

    Chemical name Common names and synonyms CAS number EC number
    2-methylbutane 2-methylbutane 78-78-4 201-142-8
    European Inventory of Existing Commercial Chemical Substances (EINECS) Listed.
    EC Inventory Listed.
    United States Toxic Substances Control Act (TSCA) Inventory Listed.
    China Catalog of Hazardous chemicals 2015 Listed.
    New Zealand Inventory of Chemicals (NZIoC) Listed.
    Philippines Inventory of Chemicals and Chemical Substances (PICCS) Listed.
    Vietnam National Chemical Inventory Listed.
    Chinese Chemical Inventory of Existing Chemical Substances (China IECSC) Listed.
    Korea Existing Chemicals List (KECL) Listed.

    SECTION 16: Other information

    Information on revision

    Creation Date July 15, 2019
    Revision Date July 15, 2019

    Abbreviations and acronyms

    • CAS: Chemical Abstracts Service
    • ADR: European Agreement concerning the International Carriage of Dangerous Goods by Road
    • RID: Regulation concerning the International Carriage of Dangerous Goods by Rail
    • IMDG: International Maritime Dangerous Goods
    • IATA: International Air Transportation Association
    • TWA: Time Weighted Average
    • STEL: Short term exposure limit
    • LC50: Lethal Concentration 50%
    • LD50: Lethal Dose 50%
    • EC50: Effective Concentration 50%


    • IPCS - The International Chemical Safety Cards (ICSC), website:
    • HSDB - Hazardous Substances Data Bank, website:
    • IARC - International Agency for Research on Cancer, website:
    • eChemPortal - The Global Portal to Information on Chemical Substances by OECD, website:
    • CAMEO Chemicals, website:
    • ChemIDplus, website:
    • ERG - Emergency Response Guidebook by U.S. Department of Transportation, website:
    • Germany GESTIS-database on hazard substance, website:
    • ECHA - European Chemicals Agency, website:

    Other Information

    High concentrations in the air cause a deficiency of oxygen with the risk of unconsciousness or death.Check oxygen content before entering the area.

    Any questions regarding this SDS, Please send your inquiry to

    Disclaimer: The above information is believed to be correct but does not purport to be all inclusive and shall be used only as a guide. The information in this document is based on the present state of our knowledge and is applicable to the product with regard to appropriate safety precautions. It does not represent any guarantee of the properties of the product. We as supplier shall not be held liable for any damage resulting from handling or from contact with the above product.

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