What is DMSO (dimethyl sulfoxide) ?
Dimethyl sulfoxide (DMSO) is an organosulfur compound with the formula (CH3)2SO. This colorless liquid 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. It has a relatively high boiling point. DMSO solvent has the unusual property that many individuals perceive a garlic-like taste in the mouth after contact with the skin.
Can DMSO (dimethyl sulfoxide) be dissolved in water?
Dimethyl sulfoxide (DMSO) is soluble in water and miscible with water in any proportion. It is a highly polar, non-protonic solvent.
Solubility Characteristics
The molecular structure of DMSO endows it with strong polarity and hydrophilicity, resulting in the following water solubility properties:
- Complete Miscibility: At room temperature, it is completely miscible with water in any proportion, forming a homogeneous, transparent solution.
- Chemical Stability: It does not undergo chemical reactions when mixed with water at room temperature, but may decompose under high temperatures or acidic conditions.
- Hygroscopicity: At 20°C, it absorbs moisture from the air equivalent to 70% of its own weight, further demonstrating its high affinity for water.
Dimethyl Sulfoxide Applications: As a "universal solvent," its water-soluble properties find extensive use in pharmaceuticals, chemical engineering, and other fields-such as serving as a drug carrier or reaction medium.
DMSO (dimethyl sulfoxide) properties
| Property | Description |
|---|---|
| Chemical Name | Dimethyl Sulfoxide |
| Abbreviation | DMSO |
| CAS Number | 67-68-5 |
| Molecular Formula | C₂H₆OS |
| Molecular Weight | 78.13 g/mol |
| Appearance | Colorless, transparent liquid |
| Odor | Slight sulfur-like odor |
| Melting Point | 18.5°C |
| Boiling Point | 189°C |
| Flash Point | 95°C (closed cup) |
| Density | 1.095 g/cm³ at 20°C |
| Solubility | Miscible with water, ethanol, acetone, chloroform |
| Refractive Index | 1.479 (20°C) |
| Purity (Industrial Grade) | 99.0% min |
| Purity (Pharma/High Purity) | 99.9% min |
| Stability | Stable under normal conditions |
| Hazard Classification | Low toxicity; irritant to skin & eyes |
Related Chemical Products from Gneebio
Bulk Industrial buyers often purchase DMSO CAS:67-68-5 together with other solvents and intermediates.
Here are the most popular products:
| Product Name | CAS |
|---|---|
| Cyclohexanone (CYC) | 108-94-1 |
| Methyl Methacrylate (MMA) | 80-62-6 |
| 2-Methoxyethanol | 109-86-4 |
| Propionic Acid | 79-09-4 |
| Ethylene Glycol (Meg) | 107-21-1 |
| N, N-Dimethylacetamide (DMAC) | 127-19-5 |
Purchase Chemical Raw Materials Click here: TIANJIN GNEE BIOTECH CO., LTD.