Dimethyl Sulfoxide DMSO Solvent CAS 67-68-5
Dimethyl sulfoxide (DMSO) is a versatile aprotic solvent with a unique combination of properties, including high polarity, thermal stability, and the ability to dissolve a wide range of organic and inorganic compounds. This product, with CAS number 67-68-5 and molecular formula C2H6OS, is a clear, colorless liquid at room temperature. It is widely used as a processing solvent in acrylic polymerization, as a spinning solvent for polyurethane, and as an extraction solvent for aromatics. Its high selectivity and penetration-enhancing properties make it valuable in pharmaceutical and pesticide applications.
Key Selling Points
- High Solvency: Dissolves a broad range of polymers including acrylics, polyamides, and polysulfones, enabling efficient processing in polymerization and spinning operations.
- Selective Extraction: Highly effective for separating aromatics and butadiene from hydrocarbon mixtures, improving yield and purity in petrochemical processes.
- Skin Penetration Enhancer: Facilitates the delivery of active ingredients through the skin, enhancing the efficacy of pharmaceutical and pesticide formulations.
- Analytical Grade Solvent: Suitable for gas chromatography and UV spectroscopy, ensuring reliable and accurate analysis results.
- Versatile Applications: Used as a reaction medium, dye solvent, antifreeze agent, and capacitor dielectric, providing multi-industry utility.
Technical Specifications
| Property | Value |
|---|
| Product Name | Dimethyl sulfoxide |
| CAS | 67-68-5 |
| Molecular Formula | C2H6OS |
| Molecular Weight | 78.13 |
| EINECS | 200-664-3 |
| Melting Point | 18.4 °C |
| Boiling Point | 189 °C |
| Density | 1.100 g/mL at 20 °C |
| Vapor Density | 2.7 (vs air) |
| Vapor Pressure | 0.42 mm Hg at 20 °C |
| Refractive Index | n20/D 1.479 |
| pKa | 35 at 25 °C |
| Form | Liquid (temperature dependent) |
| Color | Clear colorless |
Models and Options
This product is available in various packaging sizes to meet different production needs. Standard options include laboratory-sized bottles (500 mL, 1 L), industrial drums (200 L), and bulk ISO tanks. Custom packaging and labeling are available upon request.
Materials and Structure
DMSO is a clear, colorless liquid with a molecular structure consisting of a sulfinyl group bonded to two methyl groups. Its high dielectric constant and ability to accept hydrogen bonds contribute to its excellent solvency. The product is stabilized to prevent decomposition during storage and transport.
Applications
Dimethyl sulfoxide finds extensive use in:
- Acrylic polymerization and spinning
- Polyurethane synthesis and drawing
- Solvent for polyamide, polyimide, and polysulfone resins
- Extraction of aromatics and butadiene
- Synthesis of chlorofluorobenzeneamine
- Pharmaceutical formulations for its penetration-enhancing properties
- Pesticide additives to improve efficacy
- Dye solvent and dye carrier for synthetic fibers
- Absorbent for acetylene and sulfur dioxide
- Capacitor dielectric and brake oil component
- Gas chromatography and UV spectroscopy solvent
Customization
We offer customization services including different packaging sizes, labeling, and documentation (COA, MSDS). For bulk orders, we can arrange dedicated logistics with temperature control if required. Please contact us to discuss your specific requirements.
FAQ
What is the minimum order quantity for DMSO?
The MOQ is 1 kg, allowing for small trials and laboratory use.
How is DMSO packaged to ensure safety during transport?
DMSO is packaged in sealed containers to prevent moisture absorption and contamination. For larger volumes, we use UN-approved drums and ISO tanks. Air and sea freight options are available, with temperature-controlled logistics for sensitive shipments.
What quality control measures are in place?
Every batch is fully tested in our facility, and a Certificate of Analysis (COA) is issued for each shipment. Tests include purity by GC/HPLC, moisture, appearance, and color. Third-party inspections by SGS or BV can be arranged.
Can you provide samples for testing?
Yes, we offer samples for new clients before mass production. Delivery is via international express within 3-5 working days.
What are the payment terms?
We accept T/T, D/P, Western Union, and PayPal.
What is the delivery lead time after order confirmation?
For standard products, lead time is typically 2-4 weeks. Urgent orders can be expedited via air freight with 5-7 days delivery.
Do you have certifications for exporting to Europe?
Yes, our products are REACH compliant, and we hold ISO9001, SGS, and RoHS certifications. Full documentation for customs clearance is provided.
Inquiry Information
For pricing, availability, and technical specification, please contact our sales team at sales@jumingchem.com or call +86 159 6162 4309. We are committed to providing high-quality DMSO with reliable supply and professional support.
Image Filename and Alt Suggestions
- dmso-67-68-5-solvent.png - DMSO in clear bottle
- dmso-67-68-5-structure.png - Chemical structure of DMSO
- dmso-67-68-5-application.png - DMSO used in laboratory
