Dimethyl sulfoxide (DMSO) solventDimethylsulfoxide (DMSO) is a sulfur-containing organic compound, English Dimethylsulfoxide, molecular formula (CH3) 2SO, at room temperature is colorless odorless transparent liquid, with hygrometric flammable liquid.It has high polarity, high boiling point, aproton, miscible characteristics in water, very low toxicity, good thermal stability, does not mix with alkanes, can dissolve in water, ethanol, propanol, ether, benzene and chloroform and other most organic matter, known as “universal Chemicalbook solvent”. It is one of the most powerful organic solvents in common use.It can dissolve most organic matter, 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.Structure:Appearance: The appearance of colorless, odorless hygroscopic liquid.Boiling point: 189.0℃Melting point: 18.54℃Relative density (25℃) : 1.0958Solubility:Similar to N, n-dimethylformamide. It is miscible with water, methanol, ethanol,…

DMSO is a colorless and transparent liquid at room temperature, and an association with a chain polymer structure will be formed between molecules when the purity is higher, resulting in a higher melting point (18.45℃) and boiling point (189℃). The following table also lists other important physical constants and thermodynamic data for DMSO. Similar to DMF, this compound can also be used as a polar aprotic solvent, miscible with water and most common organic solvents, but more polar than the former. DMSO can dissolve many organic and inorganic compounds well, coupled with low toxicity, and is widely used in academic and industrial applications. At present, people mainly start from dimethyl sulfide (Me2S), using O2 or NO2 as oxidant to produce DMSO industrially. Important physical constants and thermodynamic data of DMSO DMSO can also be used as a reactant in a variety of organic chemical reactions. As early as 1957, Professor…

Dimethyl sulfoxide (DMSO) is a sulfur-containing organic compound, colorless and odorless transparent liquid at room temperature, soluble in ethanol, propanol, benzene and chloroform and other most organic matter, known as the “universal solvent”. Due to the special status of dimethyl sulfoxide “universal solvent”, the industry has paid more attention to this product. The market situation of DMSO was briefly analyzed in this paper. 1. What are the production processes of dimethyl sulfoxide? According to the investigation, the DMSO production process is divided into methanol carbon disulfide method, hydrogen peroxide method, nitrogen dioxide method, dimethyl sulfate method and solution recovery method. At present, the mainstream production process is methanol carbon disulfide method, that is, methanol and carbon disulfide to produce dimethyl sulfide, and then with nitrogen dioxide to produce dimethyl sulfoxide. The mainstream process route is as follows: Figure 1 Process flow chart of methanol carbon disulfide process FIG. 2 Hydrogen…

Chemical name: dimethyl sulfoxide CAS accession number: 67-68-5 Product specifications: Appearance：colorless transparent liquid Chemical formula： C2H6OS Molecular weight： 78.12 Density  g/cm3 ：1.1 Melting point   ℃ ：18.4-19.0 Boiling point  ℃ ：189 Refractive index (at 20 ℃)： 1.4785 Moisture %： 0.03 Acid value（mg KOH/g）： 0.01 Crystallization point  ℃ ：18.3 ◆Nature:This product is a highly polar organic solvent, which can be mixed with water in any proportion, and can dissolve general organic solvents except petroleum ether.◆Application:extraction solvent for separation of alkanes and aromatic hydrocarbons for extraction of aromatic hydrocarbons and butadiene;As a processing solvent and spinning solvent in acrylonitrile polymerization, as a polyurethane synthesis and spinning solvent, as a synthetic solvent for polyamide, chlorofluoroaniline, polyimide and polysulfone resin;It is often added to the drug as an active component of analgesic drugs, and can also be used as a capacitive medium, antifreeze, brake oil, rare metal extractant, etc.◆Storage method:This product should be sealed in a cool…