Polar Aprotic Solvents

Your Professional Carboxylic Acid Manufacturer

 

 

Shandong Ruishuang Chemical Co., Ltd. is located in the High-tech Development Zone of Zibo City, Shandong Province. It specializes in the production and sales of various organic chemical solvents. With 30 years of rich experience, the company's products are widely used in pesticides, medicines, polyesters, coatings, dyes and petrochemicals. Our products include Acrylic Acid, Formic Acid, Acetic Acid, etc.

 

Why Choose Us
 

Quality Control
The company collaborates extensively with authoritative technical centers, laboratories, and testing institutions to ensure that each batch of products undergoes rigorous inspection and meets stringent quality standards.

 

Sales Market
Our products are exported to a wide range of countries and regions, including North America, South America, the Middle East, Southeast Asia, India, and Pakistan. They have earned widespread market recognition and customer trust.

 

Patent Certificate
The company's products comply with both domestic and international quality standards and have been awarded ISO9001 certification, guaranteeing their high quality and reliability.

 

One-stop Service
The company has established a comprehensive supply chain system that integrates warehousing, packaging, logistics, and transportation. This system provides global customers with all-encompassing and high-quality products and services, both online and offline.

 

 

 

 

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Acrylic Acid

 

Polar Aprotic Introduction

Polar aprotic solvents are a unique class of high-polarity solvents that do not donate hydrogen atoms (protons) via hydrogen bonding. Characterized by their strong dipole moments and ability to dissolve a wide range of ionic and non-ionic compounds, these solvents play an indispensable role in organic synthesis, pharmaceutical manufacturing, polymer processing, and electronics production.

 

Our Best-Selling Dipolar Aprotic Products
Butyl Acetate
N-heptane
1,2-Dichloroethane
1,4-Butylene Glycol(BDO)

Dimethyl Sulfoxide(DMSO)
Dimethyl sulfoxide (DMSO) is an extremely important universal solvent that is soluble in both water and organic solvents. It is an important polar aprotic solvent that dissolves both polar and nonpolar compounds and is miscible in a wide range of organic solvents as well as water.


Dimethylacetamide (DMAC)
N,N−Dimethylacetamide (DMAc) is a dipolar, aprotic, high-boiling, oily solvent and reagent. It is miscible with water and most oxygen- and nitrogen-containing organic solvents. It has a faint ammonia odor.


N,N-DimethyIformamide(DMF)
N,N-Dimethylformamide (DMF) is an excellent polar solvent for various classes of compounds, the dissolution being favoured by interactions of the substrate with DMF.


Glycerol
Glycerol is a simple triol compound. It is a colorless, odorless, viscous liquid that is sweet-tasting and non-toxic. The glycerol backbone is found in lipids known as glycerides. It is also widely used as a sweetener in the food industry and as a humectant in pharmaceutical formulations.

 

Our Company Has More Products to Offer, Please Browse the Product Categories on the Website, If You Have Any Needs, Please Contact Us.

 

polar Aprotic Properties

 

 

Solvent Name Chemical Formula Boiling Point (°C) Dielectric Constant (ε) Density (g/cm³, 20°C) Dipole Moment (D)
N-Methyl-2-pyrrolidone (NMP) C₅H₉NO 202 32 1.028 4.09
N,N-Dimethylformamide (DMF) C₃H₇NO 153 36.7 0.944 3.82
N,N-Dimethylacetamide (DMAc) C₄H₉NO 165 37.8 0.937 3.72
Dimethyl Sulfoxide (DMSO) C₂H₆OS 189 46.7 1.100 3.96
Sulfolane C₄H₈O₂S 285 43.2 1.261 4.35
Tetrahydrofuran (THF) C₄H₈O 66 7.6 0.889 1.75
Acetonitrile C₂H₃N 82 37.5 0.786 3.92
Dichloromethane (DCM) CH₂Cl₂ 40 9.1 1.325 1.60
1,2-Dichloroethane (EDC) C₂H₄Cl₂ 84.7 10.4 1.253 1.80

 

 

Molecular Structure of Polar Aprotic
Solvent Name Chemical Formula Molecular Structure (Text Representation)
N-Methyl-2-pyrrolidone (NMP) C₅H₉NO NMP
Dimethylformamide (DMF) C₃H₇NO HCON(CH₃)₂
Dimethylacetamide (DMAc) C₄H₉NO CH₃CON(CH₃)₂
Dimethyl Sulfoxide (DMSO) C₂H₆OS (CH₃)₂SO
Sulfolane C₄H₈O₂S Sulfolane
Tetrahydrofuran (THF) C₄H₈O THF
Acetonitrile C₂H₃N CH₃–C≡N
Dichloromethane (DCM) CH₂Cl₂ Cl–CH₂–Cl
1,2-Dichloroethane (EDC) C₂H₄Cl₂ Cl–CH₂–CH₂–Cl
Acrylonitrile

 

Industrial Applications of polar Aprotic
 
 
 

Fine Chemicals & Agrochemicals

Application: Reaction media for synthesis of dyes, pesticides, herbicides, and flavors

Key Products: DMF, DMSO, Acetonitrile

Advantages: Thermally stable, compatible with acidic/alkaline reagents, high selectivity

 
 

Pharmaceuticals

Application: Solvents for synthesis of APIs, intermediates, peptides, and nucleosides

Key Products: DMF, DMAc, NMP, DMSO

Advantages: High purity, low residue, excellent solubility for polar substrates

 
 

Polymer & Resin Processing

Application: Solvents in polyimides, polyacrylonitrile, polyurethane, and PVC production

Key Products: NMP, DMAc, THF

Advantages: Solubilize high-molecular-weight polymers, support clean film casting and membrane formation

 
 

Battery & Electronics Industry

Application: Solvents in lithium-ion battery electrolyte systems, photoresist stripping, and semiconductor cleaning

Key Products: NMP, Sulfolane, DMSO, Acetonitrile

Advantages: High dielectric constant, low moisture content, safe for sensitive substrates

 

 

Dimethyl Carbonate

 

Safety Tips for Polar Aprotic

● Use personal protective equipment.


● Protect the skin and eyes.


● Prevent inhalation.


● Avoid working in a confined space.


● Store product safely.

 

 

Packing

● Storage: Preserve well-closed containers protect from moisture.


● Label: Can be customized


● Packing container: Packed in drums


● Quantity: 225kg/drum, 4 drums in one pallet (if needed)

N-hexane

 

Our Working Process
1

Set a Strategy

Determine quantity, style and delivery time.

2

Sign Contract

Provide efficient, high-quality services.

3

Production

Strict control and quality control at all levels.

4

Delivery

Delivery to customers according to contract time.

 

FAQ

 

Q: What is a polar aprotic solvent?

A: A polar aprotic solvent is a solvent characterized by a relatively high dielectric constant (usually above 15) and a significant permanent dipole moment, but it lacks hydrogen atoms that can participate in hydrogen bonding (i.e., it cannot donate labile protons). Examples include dimethyl sulfoxide (DMSO) and N-methyl-2-pyrrolidone (NMP).


Q: What are polar aprotic solvents used for?

A: Polar aprotic solvents are widely used in various industries such as pharmaceutical synthesis, electronics manufacturing and cleaning, and chemical processes that require strong solvency and chemical stability.


Q: What are some common examples of polar aprotic solvents?

A: Common polar aprotic solvents include dimethyl sulfoxide (DMSO), N-methyl-2-pyrrolidone (NMP), dimethylformamide (DMF), and acetonitrile.


Q: How do polar aprotic solvents differ from protic solvents?

A: Polar aprotic solvents lack hydrogen atoms capable of forming hydrogen bonds, unlike protic solvents that have hydroxyl (–OH) or amine (–NH) groups. This property enables polar aprotic solvents to better dissolve ionic and polar compounds and favor certain chemical reactions such as nucleophilic substitutions.

 

 

 

We're well-known as one of the leading polar aprotic solvents manufacturers and suppliers in China. Please feel free to buy high quality polar aprotic solvents made in China here from our factory. For price consultation, contact us.