Greener Solvents


The New Generation of Greener Solvent Alternatives

Commitment to Sustainability

The products we create help our customers improve people's lives every day, but we recognize that every product we make also has an environmental impact. That's why we are committed to continually improving the sustainability performance of our products.

Features and Benefits of our Greener Solvent Alternatives

Solvents possess many useful properties, and also can exhibit toxic, flammable and polluting characteristics if not handled properly. Our greener solvents show improvements of certain characteristics over the alternative solvents commonly used for a given application. These products may be safer with reduced hazard or lower volatility, or may contribute to reduced environmental impacts by increased biodegradability.

Our greener solvent alternatives offer you the following features and benefits:

  • Less toxic and less hazardous (acc. to CLP regulation)
  • Higher biodegradability (acc. OECD)
  • Easy to recycle, and reduced waste stream
  • Higher boiling point compared to conventional solvents
  • Less volatility
  • Reduction of solvent loss and energy savings

With our over 30 greener solvents, we offer a wide variety of sustainable products:

Products marked in GREEN show greener alternatives with its less toxic and less dangerous physical properties. The products marked with RED show the conventionally used solvents that the greener solvents are intended to substitute.

Alcohols

Alcohols – Alternative solvents to toxic Methanol or volatile Acetonitrile

Commonly available Isopropyl alcohol and Ethanol are suitable alternatives to toxic Methanol and Acetonitrile. Chemical properties for both iso-propyl Alcohol and Methanol exhibit lower vapor pressure, increased biodegradability, and a reduction in toxicity to humans. Depending on your application, these greener solvents can be used as a substitute for Methanol and Acetonitrile.

Alcohols
Properties Isopropyl Alcohol Ethanol Methanol Acetonitrile
Boiling Point 82.4°C 78°C 65°C 82°C
Flash Point 12°C 12°C 10°C 2°C
Vapor Pressure 4.3 kPa 5.9 kPa 15.9 kPa 9.7 kPa
Density 0.786 g/cm3 0.789 g/cm3 0.790 g/cm3 0.780 g/cm3
Biodegradability 95% (21d) 94% (28d) 99% (30d) 70% (21d)
Solubility in Water Soluble (20°C) Soluble (20°C) Soluble (20°C) Soluble (20°C)
Solvent Classification Protic Polar Protic Polar Protic Polar Protic Polar
Hazard Pictograms



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Ethers

Ethers – Alternative solvents to toxic ethers and aromatic or halogenated solvents

Featuring 2-MeTHF (2-methyl Tetrahydrofuran) and CPME (Cyclopentyl methyl ether) as alternatives to toxic ethers, aromatics and halogenated solvents. Chemical properties for both 2-MeTHF and CPME exhibit higher boiling point, lower vapor pressure, and a reduced explosion range. Depending on your application, additional alternatives such as tBME, diethylene glycol dibutyl ether, diethyl ether, and dimethoxy methane are suitable alternatives. Chemical properties for the above contained in the table below. Depending on your application, greener solvents can be used as a substitute for ethers, aromatics, and halogenated solvents.

Ethers
Properties tBME Diethylene glycol dibutyl ether Diethyl Ether Dimethoxy Methane Toluene CPME 2-Me THF THF 1.4-dioxane DCM
Boiling Point 55.3°C 254°C 35°C 88°C 110°C 106°C 78-80°C 64°C 101.5°C 40°C
Flash Point -28°C 118°C -20°C -6°C 4°C -1°C -11°C -20°C 11°C Non-flammable
Vapor Pressure 26.8 kPa 0.001 kPa 58.6 kPa 7.01 kPa 2.91 kPa 5.99 kPa 13.6 kPa 17.3 kPa 3.8 kPa 47.0 kPa
Explosion Range 1.5% – 8.5% no 1.7% – 36% 1.5% 1.2% – 8% 1.1% – 9.9% 1.2% – 5.7% 1.5% – 12.4% 1.7% – 25.2% 13% – 22%
Biodegradability 2% (28d) 92% (28d) no n/a n/a n/a n/a 39% (28d) < 5% (28d) 5% – 26% (28d)
Solubility in Water 42 g/l (20°C) 3 g/l (20°C) 69 g/l (20°C) 91 g/l (18°C) 52 g/l (20°C) 1.1 g/100 g 150 g/l (20°C) Soluble Soluble 20 g/l (20°C)
Solvent Classification Aprotic Unpolar Aprotic Unpolar Aprotic Unpolar Aprotic Unpolar Aprotic Unpolar Aprotic Polar Aprotic Polar Aprotic Polar Aprotic Polar Aprotic Polar
Hazard Pictograms









CPME = Cyclopentyl methyl ether
2-Me-THF = 2-Methyltetrahydrofuran
THF = Tetrahydrofuran
DCM = Dichloromethane


Esters

Esters – Alternative solvents to toxic aromatic or halogenated substances

Offering a specialized class of "esters", dibasic esters can be used as alternatives to toxic aromatics and halogenated solvents. Chemical properties for DBE, DBE-2, DBE-4, DBE-5, ethyl lactate, and methyl acetate exhibit lower vapor pressure, higher flash point. Depending on your application, these greener solvents can be used as a substitute for Benzene and Dichloromethane.

Esters
Properties DBE* DBE-2** DBE-4*** DBE-5**** Ethyl lactate Methyl acetate Benzene Chloroform Dichloromethane
Boiling Point 196 - 225°C 210 - 235°C 200°C 96 - 103°C 154°C 56 - 58°C 80°C 61°C 40°C
Flash Point 100°C 104°C 90°C 109°C 53°C -13°C -11°C Non flammable Non flammable
Vapor Pressure < 0.008 kPa < 0.005 kPa < 0.018 kPa < 0.007 kPa 0.16 kPa 22.8 kPa 10 kPa 20.9 kPa 47.0 kPa
Biodegradability n/a n/a n/a 60% (28d) 86% (28d) > 70% (19d) > 5% no 5 - 26% (28d)
Solubility in Water 53 g/l 42 g/l 76 g/l 32 g/l (20°C) Soluble (25°C) 250 g/l (20°C) 1.8 g/l (20°C) 8 g/l (20°C) 20 g/l (20°C)
Solvent Classification Aprotic Unpolar Aprotic Unpolar Aprotic Unpolar Aprotic Unpolar Aprotic Polar Aprotic Unpolar Aprotic Unpolar Aprotic Unpolar Aprotic Polar
Hazard Pictograms    






DBE = Dibasic esters

* = Mixture of 55-65% dimethyl glutarate, 15-25% dimethyl succinate, 10-25% dimethyladipate
** = Mixture of 72-78% dimethyl glutarate, 20-28% dimethyladipate
*** = Mixture of <1% dimethyl glutarate, >89% dimethyl succinate, <1% dimethyladipate
**** = Mixture of >98% dimethyl glutarate, 1% dimethyl succinate, <1% dimethyladipate

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Organic Carbonates

Organic Carbonates – Alternative solvents to toxic DMF and N-Methyl-2-pyrrolidone

Ethylene carbonate and Propylene carbonate are a preferred class of "carbonates" as alternatives to DMF (Dimethyformamide) and NMP (N-Methyl-2-pyrrolidone). Chemical properties for these carbonates exhibit lower vapor pressure and higher flash point. Depending on your application, these (greener solvents) can be used as a substitute for DMF and NMP.

Organic carbonates
Properties PC EC BC DMC DMF DMSO NMP
Boiling Point 243°C 248°C 251°C 90°C 153°C 189°C 203°C
Flash Point 123°C 143°C 121°C 16.7°C 58°C 87°C 86°C
Vapor Pressure 0.004 kPa 0.021 kPa 0.0024 kPa 5.3 kPa 0.377 kPa 0.22 kPa 0.032 kPa
Biodegradability 94% (29d) n/a n/a 88% (28d) 90% (28d) 3.1% (14d) 90%
Solubility in Water 240 g/l (20°C) 214 g/l (20°C) Soluble 139 g/l (20°C) Soluble (20°C) 1000 g/l miscible
Solvent Classification Aprotic Polar Aprotic Polar Aprotic Polar Aprotic Polar Aprotic Polar Aprotic Polar Aprotic Polar
Hazard Pictograms    

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EC = Ethylene carbonate
BC = 1,2-Butylene carbonate
DMC = Dimethyl carbonate
DMF = Dimethylformamide
DMSO = Dimethylsulfoxide
NMP = N-Methyl-2-pyrrolidon
* not available


PEG 200, 300, 400, 600

PEG 200, 300, 400, 600 – Alternatives to DMF and DMSO

PEG200, PEG300, PEG400, and PEG600 (Polyethylene glycol) offer suitable chemical properties as alternatives to toxic DMF (Dimethylformamide) and hazardous DMSO (Dimethylsulfoxide), with its low biodegradibility. Chemical properties for PEG exhibit, higher boiling point, higher flash point, lower vapor pressure, and an increased biodegradability. Depending on your application, these (greener solvents) can be used as a substitute for DMF and DMSO.

PEG 200, 300, 400, 600
Properties PEG 200 PEG 300 PEG 400 PEG 600 DMF DMSO
Boiling Point >150°C >220°C >200°C n/a 153°C 189°C
Flash Point   180°C   220°C 240°C 260°C 58°C 87°C
Vapor Pressure < -0.001 kPa < -0.01 kPa < -0.01 kPa < -0.01 kPa 0.37 kPa 0.22 kPa
Explosion Range n/a n/a n/a n/a 2.2% - 16% 1.8% - 63%
Biodegradability >  90% (28d) >  90% (28d) >  90% (28d) >  90% (28d) 90% (28d) 3.1% (14d)
Solubility in Water 70 g/l (20°C) Soluble (20°C) Soluble (20°C) Soluble (20°C) Soluble (20°C) 1000 g/l
Solvent Classification Protic Polar Protic Polar Protic Polar Protic Polar Aprotic Polar Aprotic Polar
Hazard Pictograms    

 

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DMF = Dimethylformamide
DMSO = Dimethylsulfoxide
* not available


Volatile methyl siloxanes

Volatile methyl siloxanes (VMS) – alternatives to hydrocarbons like e.g. Xylene or Toluene can be used

Octamethyl-trisiloxane and Decamethyl-tetrasiloxane commonly known as volatile methyl siloxanes (VMS) are alternatives to aromatic hydrocarbons such as Xylene and Toluene. Chemical properties for VMS's exhibit higher boiling point and a higher flash point, which results in lower volatility and less chemical vapors than the currently preferred aromatic hydrocarbons. Depending on your application, these (greener solvents) can be used as a substitute for aromatic hydrocarbons such as Xylene and Toluene.

Volatile methyl siloxanes (VMS)
Properties Octamethyl-trisiloxane Decamethyl-tetrasiloxane Xylene Toluene
Boiling Point 153°C 194°C 144°C 110°C
Flash Point 29°C 62°C 30°C 4°C
Vapor Pressure n/a n/a 0.8 - 0.10 kPa 2.91 kPa
Explosion Range n/a 0.90% 1% - 7.6% 1.2% - 8%
Biodegradability n/a n/a n/a n/a
Solubility in Water n/a n/a 0.18 g/l (20°C) 52 g/l (20°C)
Solvent Classification Aprotic Unpolar Aprotic Unpolar Aprotic Unpolar Aprotic Unpolar
Hazard Pictograms


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4-Hydroxy-4-methyl-2-pentanone

4-Hydroxy-4-methyl-2-pentanone - Alternative to Acetone

4-Hydroxy-4-methyl-2-pentanone can be used as an alternative to Acetone. Chemical properties for 4-Hydroxy-4-methyl-2-pentanone exhibit higher boiling point, higher flash point, and lower vapor pressure and it is 100% biodegradable. Depending on your application, these (greener solvents) can be used as a substitute for Acetone.

4-Hydroxy-4-methyl-2-pentanone
Properties 4-Hydroxy-4-methyl-2-pentanone Acetone
Boiling Point 168°C 56°C
Flash Point 58°C -20°C
Vapor Pressure 0.1 kPa 24.6 kPa
Density 0.94 g/cm3 0.79 g/cm3
Biodegradability >  100% (14d) 91% (28d)
Solubility in Water Soluble (20°C)) Soluble
Solvent Classification Aprotic Polar Aprotic Polar
Hazard Pictograms

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