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Loba Chemie Pvt. Ltd. is a manufacturer of Laboratory Chemicals, Organic and Inorganic, Biological Stains and Indicators, Solvents and Acid of LR/GR/EP/UV and HPCL Grades in India.

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Green Solvents : 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	Applications
Physical Properties	Organic Processes with CPME vs. THF
Peroxide Formation of Ether Solvents	Product Specifications
Packings	Cautions

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.