Flammable liquids, Category 2
Hazardous to the aquatic environment, long-term (Chronic) - Category Chronic 3
H225 Highly flammable liquid and vapour
H412 Harmful to aquatic life with long lasting effects
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/...
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.
P403+P235 Store in a well-ventilated place. Keep cool.
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.
no data available
Fresh air, rest. Refer for medical attention.
Remove contaminated clothes. Rinse and then wash skin with water and soap. Refer for medical attention .
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.
Rinse mouth. Do NOT induce vomiting. Refer immediately for medical attention.
Inhalation causes dizziness, nausea, and vomiting; concentrated vapor may cause unconsciousness and collapse. Vapor causes slight smarting of eyes. Contact with liquid causes irritation of eyes and may irritate skin if allowed to remain. Ingestion causes irritation of stomach. Aspiration produces severe lung irritation and rapidly developing pulmonary edema; central nervous system excitement followed by depression. (USCG, 1999)
Immediate first aid: Ensure that adequate decontamination has been carried out. If patient is not breathing, start artificial respiration, preferably with a demand-valve resuscitator, bag-valve-mask device, or pocket mask, as trained. Perform CPR as necessary. Immediately flush contaminated eyes with gently flowing water. Do not induce vomiting. If vomiting occurs, lean patient forward or place on left side (head-down position, if possible) to maintain an open airway and prevent aspiration. Keep patient quiet and maintain normal body temperature. Obtain medical attention. Aliphatic hydrocarbons and related compounds
Use dry chemical, carbon dioxide, or foam extinguishers. Water may be ineffective because of low flash point. Do not extinguish fire unless flow of chemical can be stopped.
Behavior in Fire: Containers may explode. (USCG, 1999)
Use foam, carbon dioxide, powder. Water may be ineffective. In case of fire: keep drums, etc., cool by spraying with water.
Evacuate danger area! Consult an expert! Personal protection: filter respirator for organic 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. Do NOT wash away into sewer. Ventilation. Collect leaking and spilled liquid in sealable containers as far as possible. Absorb remaining liquid in sand or inert absorbent. Do NOT absorb in saw-dust or other combustible absorbents. Then store and dispose of according to local regulations.
Evacuate danger area! Consult an expert! Personal protection: filter respirator for organic 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. Do NOT wash away into sewer. Ventilation. Collect leaking and spilled liquid in sealable containers as far as possible. Absorb remaining liquid in sand or inert absorbent. Do NOT absorb in saw-dust or other combustible absorbents. Then store and dispose of according to local regulations.
Accidental Release Measures: Personal precautions, protective equipment and emergency procedures Avoid breathing vapours, mist or gas. Ensure adequate ventilation. Remove all sources of ignition. Evacuate personnel to safe areas. Beware of vapours accumulating to form explosive concentrations. Vapours can accumulate in low areas. Environmental precautions: Prevent further leakage or spillage if safe to do so. Do not let product enter drains. Discharge into the environment must be avoided. Methods and materials for containment and cleaning up: Contain spillage, and then collect with an electrically protected vacuum cleaner or by wet-brushing and place in container for disposal according to local regulations.
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). Use non-sparking handtools. 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.
Fireproof. Well closed. Separated from strong oxidants and food and feedstuffs. Store in an area without drain or sewer access. Provision to contain effluent from fire extinguishing.Conditions for safe storage, including any incompatibilities: Keep container tightly closed in a dry and well-ventilated place. Containers which are opened must be carefully resealed and kept upright to prevent leakage.
TLV: 600 ppm as TWA
no data available
Ensure adequate ventilation. Handle in accordance with good industrial hygiene and safety practice. Set up emergency exits and the risk-elimination area.
Wear safety goggles or eye protection in combination with breathing protection.
Protective gloves.
Use ventilation, local exhaust or breathing protection.
no data available
Cyclopentane is a clear colorless liquid with a petroleum-like odor. Flash point of -35°F. Less dense than water and insoluble in water. Vapors are heavier than air.
Colorless liquid
Mild, sweet odor
395°C(dec.)(lit.)
50°C(lit.)
Class IB Flammable Liquid: Fl.P. below 73°F and BP at or above 100°F.
no data available
-20°C
682°F
no data available
no data available
0.413 mPa s at 25 deg C
Insoluble (NIOSH, 2016)
log Kow = 3.00
18.93 psi ( 55 °C)
0.751g/mLat 25°C(lit.)
~2 (vs air)
no data available
Reacts with strong oxidants.
Stable under recommended storage conditions.
Flammable, dangerous fire risk.The vapour is heavier than air and may travel along the ground; distant ignition possible. As a result of flow, agitation, etc., electrostatic charges can be generated.CYCLOPENTANE is incompatible with strong oxidizing agents such as chlorine, bromine, fluorine. (NIOSH, 2016).
no data available
Strong oxidizers (e.g. chlorine, bromine, fluorine).
When heated to decomposition it emits acrid smoke and fumes.
no data available
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The substance and the vapour in high concentrations are irritating to the eyes and respiratory tract. The substance is irritating to the gastrointestinal tract. If swallowed the substance easily enters the airways and could result in aspiration pneumonitis. The substance may cause effects on the central nervous system. This may result in lowering of consciousness.
Repeated or prolonged contact with skin may cause dryness and cracking and dermatitis.
A harmful contamination of the air can be reached rather quickly on evaporation of this substance at 20°C.
AEROBIC: Mixed populations of microorganisms from groundwater contaminated with gasoline did not biodegrade cyclopentane; cyclopentane had an initial concentration of 0.17 ppm in the gasoline mixture, and after 192 hours the concentration was 0.04 ppm. However, the concentration of the control was 0.05 ppm(1). A mixture of C5-saturates, including cyclopentane, had a half-life of 2.4 days in seawater and a water accommodated fraction (WAF)(2).
An estimated BCF of 44 was calculated in fish for cyclopentane(SRC), using a log Kow of 3(1) and a regression-derived equation(2). According to a classification scheme(3), this BCF suggests the potential for bioconcentration in aquatic organisms is low(SRC).
The Koc of cyclopentane is estimated as 401(SRC), using a log Kow of 3(1) and a regression-derived equation(2). According to a classification scheme(3), this estimated Koc value suggests that cyclopentane is expected to have moderate mobility in soil.
no data available
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.
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.
ADR/RID: UN1146 (For reference only, please check.)
IMDG: UN1146 (For reference only, please check.)
IATA: UN1146 (For reference only, please check.)
ADR/RID: CYCLOPENTANE (For reference only, please check.)
IMDG: CYCLOPENTANE (For reference only, please check.)
IATA: CYCLOPENTANE (For reference only, please check.)
ADR/RID: 3 (For reference only, please check.)
IMDG: 3 (For reference only, please check.)
IATA: 3 (For reference only, please check.)
ADR/RID: II (For reference only, please check.)
IMDG: II (For reference only, please check.)
IATA: II (For reference only, please check.)
ADR/RID: No
IMDG: No
IATA: No
no data available
no data available
Refer for medical attention if breathing difficulties and/or fever develop.