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- Chemical Name: Dimethyl sulfoxide
- CAS No.: 67-68-5
- Molecular Fomula: ：C2H6OS
- Molecular weight：78.13
- Appearance:Colorless liquid
- Sample：Available
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Description of DMSO
- 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 melting point. DMSO has the unusual property that many individuals perceive a garlic-like taste in the mouth after contact with the skin.
In terms of chemical structure, the molecule has idealized Cs symmetry. It has a trigonal pyramidal molecular geometry consistent with other three-coordinate S(IV) compounds, with a nonbonded electron pair on the approximately tetrahedral sulfur atom.
Basic Info of DMSO
Basic Info
Numbering system
Properties
Safety Info
Basic Info
| Chemical Name | Dimethyl sulfoxide |
| Synonyms | Methane, sulfinylbis-;(Methylsulfinyl)methane; |
| CAS No. | 67-68-5 |
| Molecular Formula | C2H6OS |
| Molecular Weight | 78.13340 |
| PSA | 36.28000 |
| LogP | 0.86040 |
Numbering system
| MDL number | MFCD00002089 |
Properties
| Appearance & Physical State | colorless liquid |
| Density | 1.1 |
| Boiling Point | 189ºC |
| Melting Point | 18.4-19.0ºC |
| Freezing Point | 18.4℃ |
| Flash Point | 95ºC |
| Refractive Index | 1.477-1.48 |
| Stability | Stable. Incompatible with a very wide range of materials, including acid chlorides, strong acids, strong oxidizing agents, strong reducing agents, phosphorus halides, moisture, copper wool + trichloroacetic acid. Reacts violently with a number of materials |
| Storage Condition | Store at RT. |
| Vapor Density | 2.7 (vs air) |
| Vapor Pressure | 0.42 mm Hg ( 20 °C) |
Safety Info
| RTECS | PV6210000 |
| Safety Statements | S26-S37/39 |
| HS Code | 29309070 |
| WGK Germany | 1 |
| Risk Statements | R36/37/38 |
| Hazard Codes | Xi |
What is Dimethyl sulfoxide?
- With the progress of science and technology and the development of society, chemical products have invariably permeated our daily lives, in medicine, food, cosmetics, electronics, industry, and other areas, becoming an essential part of our lives. One such product is Dimethyl sulfoxide which has developed particularly rapidly in recent years. Do you know about Dimethyl sulfoxide?
- The official answer：Dimethylsulfoxide (DMSO) is a sulfur-containing organic compound, English Dimethylsulfoxide, molecular formula (CH3) 2SO, colorless and odorless transparent liquid at room temperature, a hygroscopic flammable liquid, both high polarity, high boiling point, non-protonic, miscible in water, very low toxicity, good thermal stability, and alkanes do not mix, can be soluble in water, ethanol, propanol, ether, benzene and chloroform, and most other organic substances. It can be dissolved in water, ethanol, propanol, ether, benzene, chloroform, etc. It is known as the “universal solvent”. It is the one with the strongest solvency capacity among the commonly used organic solvents. It can dissolve most organic substances, including carbohydrates, polymers, peptides, and many inorganic salts and gases. It can dissolve solutes equal to 50-60% of its weight (other common solvents can only dissolve 10-20%), so it is important in sample management and high-speed drug screening. Under certain conditions, explosive reactions can occur when dimethyl sulfoxide comes in contact with chlorinated chlorides.
What’s the application of Dimethyl sulfoxide?
- It can be used as an organic solvent, reaction medium, and organic synthesis intermediate for aromatic extraction, resin and reaction medium for dyestuff, acrylic polymerization, and solvent for yarn drawing. It has a wide range of uses. It is used as a solvent for polymerization and condensation of acrylic resin and polysulfone ester, solvent for polymerization and drawing of polyacrylonitrile and acetic acid fiber, solvent for extraction of alkane and aromatic separation, solvent for extraction of aromatic hydrocarbons and butadiene, solvent for spinning of acrylic, solvent for plastic and reaction medium for organic synthesis of dyestuff and pharmaceutical industry. In medicine, dimethyl sulfoxide has anti-inflammatory and pain-relieving effects and has strong permeability to the skin, thus dissolving certain drugs and allowing them to penetrate the body for therapeutic purposes. This carrier property of dimethyl sulfoxide can also be used as an additive for pesticides. Adding small amounts of dimethyl sulfoxide to certain pesticides helps the pesticide penetrate the plant to improve its efficacy. Dimethyl sulfoxide can also be used as a dyeing solvent for synthetic fibers, a de-staining agent, a dyeing carrier, an absorbent for recovering acetylene and sulfur dioxide, a synthetic fiber modifier, an antifreeze agent, and a capacitor medium, brake fluid, and a rare metal extractant.
Conclusion
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