Cyclopentane is a kind of naphthenic hydrocarbon, an organic compound, with the molecular formula of CfiveHten, a colorless transparent liquid, insoluble in water, soluble in ethanol, ether, benzene, carbon tetrachloride, acetone and other organic solvents, mainly used as solvent and standard material for chromatographic analysis.
Solubility: insoluble in water, soluble in ethanol, ether, benzene, carbon tetrachloride, acetone and other organic solvents
Molecular structure data
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Molar refractive index: 23.05
Molar volume (cmthree/mol）：88.7
Isotonic specific volume (90.2K): 200.2
Surface tension (dyne/cm): 25.9
Polarization (10-24cmthree）：9.14[1]
Calculate chemical data
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Reference value for drainage parameter calculation (XlogP): None
Number of hydrogen bond donors: 0
Number of hydrogen bond receptors: 0
Number of rotatable chemical bonds: 0
Number of tautomers: 0
Topological molecular polar surface area: 0
Number of heavy atoms: 5
Surface charge: 0
Complexity: 11.6
Number of isotope atoms: 0
Determine the number of atomic structure centers: 0
Number of uncertain atomic structure centers: 0
Determine the number of chemical bond structure centers: 0
Number of uncertain chemical bond structure centers: 0
Number of covalent bond units: 1[1]
toxicology data
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acute toxicity
LDfifty: 11400mg/kg (rat by mouth)
LCfifty：106g/mthree(Inhaled by rats)[1]
Ecological data
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Ecotoxicity LCfifty: 100mg/L (96h) (fish)
In non biodegradable air, when the concentration of hydroxyl radical is 5.00 × 10fivePcs/cmthreeThe half-life of degradation is 66h (theoretical).
This substance is harmful to the environment, and special attention should be paid to the pollution of surface water, soil, atmosphere and drinking water.
purpose
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It is mainly used as solvent and reference material for chromatographic analysis.
Emergency Management
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Leakage emergency treatment
Evacuate the personnel in the leakage contaminated area to a safe area quickly, isolate them, and strictly restrict access.Cut off the ignition source.It is recommended that emergency personnel wear self-contained positive pressure respirators and fire protection clothing.Cut off the leakage source as much as possible.Prevent entry into restricted spaces such as sewers and flood discharge ditches.
Small amount of leakage: absorb with activated carbon or other inert materials.It can also be brushed with emulsion made of incombustible dispersant, and the washing solution will be diluted and put into the waste water system.
Large amount of leakage: build a dike or dig a pit to receive;Cover with foam to reduce steam disaster.Use explosion-proof pump to transfer to tank car or special collector for recycling or transport to waste disposal site.
Protective measures
Respiratory system protection: wear a self-priming filter gas mask (half mask) when the concentration in the air exceeds the standard.
Eye protection: Generally, no special protection is required, and chemical safety goggles can be worn in case of high concentration contact.
Body protection: Wear anti-static work clothes.
Hand protection: wear benzene and oil resistant gloves.
Others: Smoking is strictly prohibited at the work site.Avoid long-term repeated contact.
First aid measures
Skin contact: Take off the contaminated clothes and wash the skin thoroughly with soapy water and clean water.
Eye contact: Lift the eyelid and flush with flowing water or physiological saline.Get medical attention.
Inhalation: quickly leave the site to a place with fresh air.Keep the respiratory tract unobstructed.If breathing is difficult, give oxygen.If breathing stops, perform artificial respiration immediately.Get medical attention.
Ingestion: drink enough warm water, induce vomiting, and seek medical advice.
security information
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Safety terminology
S9：Keep container in a well-ventilated place.
Keep the container in a well ventilated place.
S16：Keep away from sources of ignition.
Keep away from ignition sources.
S29：Do not empty into drains.
Do not pour into the sewer.
S33：Take precautionary measures against static discharges.
Take measures to prevent static electricity.
S61：Avoid release to the environment. Refer to special instructions / safety data sheets.
Avoid release to the environment.Refer to Special Instructions/Safety Data Sheet.
Risk terminology
R11：Highly flammable.
Highly flammable.
R52/53：Harmful to aquatic organisms, may cause long-term adverse effects in the aquatic environment.
It is harmful to aquatic organisms and may have long-term adverse effects on the water environment.
