Cyclopentyl methyl ether (CPME)

Cyclopentyl methyl ether (CPME) is a totally new hydrophobic ether solvent, Unlike other common ether solvents, CPME has unique excellent properties and is widely applicable as a replacement for Tetrahydrofuran (THF), Methyl Tert-Butyl Ether (MTBE), Dioxane and other existing ether solvents.

CAS : 5614-37-9
TSCA : Approved
ELINCS : Approved


Novel hydrophobic ether solvent Cyclopentyl methyl ether (CPME)


Benefits

  • HIGH HYDROPHOBICITY
    Easy separation and recovery from water, reducing emissions and wastewater Wide applicability as a reaction, extraction and crystallization solvent, giving simple and One-pot syntheses.
  • WIDE LIQUIDITY RANGE : Wide applications from lower to higher temperature, accelerating reaction rate.
  • LOW HEAT OF VAPORIZATION
    Saving energy for distillation and recovery.
  • RESIST PEROXIDE FORMATION
    Low exothermic decomposition energy of solvent containing it's peroxides.
  • NARROW EXPLOSION AREA
  • RELATIVELY STABLE TO ACIDS OR BASES
  • EASY DRYING


Applications

  • REACTIONS
    Grignard Reaction, Suzuki Coupling, Buchwald Amination, Metal Reductions (NaBH4, LiAlH4, i-Bu2AlH), Reactions with
    n-BuLi, Reactions with Lewis Acid, Friedel Crafts Reactions.
  • EXTRACTIONS
  • CRYSTALLIZATIONS
  • POLYMERIZATIONS
  • COATINGS


Physical Properties

  CPME THF Diethyl ether Dioxane MTBE
Density (20°C)[g/cm3] 0.86 0.89 0.71 1.03 0.74
Vapor specific gravity (air = 1) 3.45 2.49 2.56 3.3 3.03
Boiling point [°C] 106 65 34.6 101 55
Melting point [°C] <-140 -108.5 -116.3 11.8 -108.7
Viscosity (20°C)[cP] 0.55 0.55 0.2448 1.31 Unknown
Surface tension (20°C)[mN/m] 25.17 26.4 17.3 33.74 19.8
Heat of vaporization (boiling point)[Kcal/kg] 69.2 98.1 86.08 98.6 81.7
Specific heat (20°C)[Kcal/kg・K] 0.4346 0.469 0.5385 0.41 0.51
Refractive index (20°C) 1.4189 1.407 1.353 1.422 1.369
Solubility parameter [cal/ml] 8.4 9.5 7.4 Unknown Unknown
Dielectric constant (25°C) 4.76 7.58 4.197 2.227 Unknown
Dipole moment [D] 1.27 (calcd.) 1.7 1.12 0.45 Unknown
Azeotropic point with water [°C] 83(*) 64 34.2 87.8 -
Solubility in water (23°C)[g/100g] 1.1 6.5 4.8
Solubility of water in the solvent (23°C)[g/100g] 0.3 1.2 1.5
Flash point [°C] -1 -14.5 -45 12 -28
Ignition point [°C] 180 205 180-190 180 460
LogPow 1.59 0.47 0.89 -0.42 1.06
Explosion range [vol%] (Lower limit) 1.1 1.84 1.85 2 1.6
Explosion range [vol%] (Upper limit) 9.9 11.8 48 22 15.1


* Azeotropic composition: CPME 83.7/water 16.3 (wt%)
oil phase: CPME 98.9/water 1.1 (wt%)
water phase: CPME 0.78/water 99.22 (wt%)


Organic Processes with CPME vs. THF

CPME simplifies processes, reduces wastewater and emissions.



Peroxide Formation of Ether Solvents



Product Specifications

Purity(GC) : 99.9% min
Water : 100ppm max
Color(Hazen No) : 10 max
Peroxide : 50 mgeq/kg max


Packings

170kg Drum, 16kg Can



Cautions

  • The information contained herein is believed to be reliable, but no representations, guarantees or warranties of any kind are made as to its accuracy, stability for particular applications or results to be obtained.
  • Please read the Material Safety Data Sheet (MSDS) carefully prior to handling.
  • This product was developed for the applications herein. In case of other applications, please handle under your confirmation of safety for the applications, or please talk to Loba Chemie beforehand.


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