Cyclopentane
1.Basic Info
Formula: C₅H₁₀;
Molecular Weight:70.13
CAS No.:287-92-3;
UN No.:1146; EINECS:206-016-6
Classification: Cycloalkane, eco-friendly foaming agent & solvent
2.Physical & Chemical Properties
Appearance: Colorless transparent liquid with faint gasoline-like odor
Melting Point: -94.14℃
Boiling Point: 49.3℃ (volatile)
Flash Point: -37℃ (extremely flammable)
Density: 0.75 g/mL at 20℃
Vapor Pressure: approx. 18.93 psi at 55℃
Explosion Limit: 1.5%–8.7% by volume
Solubility: Insoluble in water, miscible with ethanol, ether, acetone, benzene and other organic solvents
Environmental feature: Zero ODP and ultra-low GWP, used as substitute for Freon
3.Main Applications
PU rigid foam blowing agent(main application＞60%): for refrigerator, water heater, thermal insulation panel & pipeline, replacing R11/R141b.
Industrial solvent: for rubber, resin, coating and electronic cleaning.
Organic synthesis intermediate for pharmaceutical & pesticide raw materials.
Fuel and azeotropic distillation agent.
4.Grade by Purity
Industrial grade: ≥95% for general solvent & synthesis
Foam grade: ≥98%(mainstream for thermal insulation industry)
High-purity grade: ≥99.5% for pharmacy, electronics & chromatographic reagent
5.Packing & Transportation
Packing: 150kg per 200L iron drum, or ISO tank container.Hazard class 3, UN1146(flammable liquid).Store in cool & ventilated warehouse below 30℃, away from fire and oxidants.
6.Safety Notice
Highly flammable; its vapor tends to gather at low-lying area and cause explosion.High-concentration inhalation may lead to dizziness and nausea.Operate with full ventilation, anti-explosion equipment and anti-static measures.
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