Description
Molecular Formula: C2H6OS
Molecular Weight: 78.13
Structural Formula:
Specification:
Items
Specifications
Melting Point
18.4°C
Boiling Point
189°C(lit.)
Vapor Density
2.7(vsair)
Density
1.100g/mL at 20°C
Vapor Pressure
0.42mmHg (20°C)
Refractive Index
n20/D1.479(lit.)
Flash Point
192°F
Solubility
miscible (completely) in water
Acidity Coefficient (pKa)
35(at 25°C)
Relative Polarity
0.444
Odor
slight garlic odor
Aroma
alliaceous
Explosivelimit
1.8-63.0%(V)
Water Solubility
Soluble in water,methanol,acetone,ether,benzene,chloroform.
Freezing Point
18.4°C
Sensitivity
Hygroscopic
Dielectric Constant
41.9(55℃)
Stability
Stable. Incompatible with most materials, including chlorides, strong acids, strong oxidizing agents, strong reducing agents, phosphorus halides, moisture, copper wire + trichloroacetic acid. Hygroscopic.
Items | Specifications |
Melting Point | 18.4°C |
Boiling Point | 189°C(lit.) |
Vapor Density | 2.7(vsair) |
Density | 1.100g/mL at 20°C |
Vapor Pressure | 0.42mmHg (20°C) |
Refractive Index | n20/D1.479(lit.) |
Flash Point | 192°F |
Solubility | miscible (completely) in water |
Acidity Coefficient (pKa) | 35(at 25°C) |
Relative Polarity | 0.444 |
Odor | slight garlic odor |
Aroma | alliaceous |
Explosivelimit | 1.8-63.0%(V) |
Water Solubility | Soluble in water,methanol,acetone,ether,benzene,chloroform. |
Freezing Point | 18.4°C |
Sensitivity | Hygroscopic |
Dielectric Constant | 41.9(55℃) |
Stability | Stable. Incompatible with most materials, including chlorides, strong acids, strong oxidizing agents, strong reducing agents, phosphorus halides, moisture, copper wire + trichloroacetic acid. Hygroscopic. |
Function：
1.Dimethyl sulfoxide is a strong polar nonprotonic solvent capable of dissolving many organic compounds.
2.It can dissolve many kinds of drugs, especially some insoluble drugs.
3. In analytical chemistry, it is used as a solvent for various analytical methods.
4. dimethyl sulfoxide can change the rate and selectivity of the reaction.
5.Dimethyl sulfoxide can be used as an osmotic agent, cell freezing protection agent.
Application：
1. In organic synthesis reaction, it can dissolve the reactants, so that the reaction can be carried out in a homogeneous system; it can also be used as a reaction solvent, so that the synthesis of drug intermediates is more efficient
2. It can dissolve many insoluble organic compounds and be used to prepare highly concentrated solutions. In the field of polymer synthesis, it is used to dissolve some special polymer monomers or polymers, such as polyimide monomers.
3. In the pharmaceutical industry, it is used to manufacture injections, ointments and other drug dosage forms.
4. In nuclear magnetic resonance (NMR) analysis, it is one of the commonly used solvents.
4. In some redox reactions, it can be used as an electron transfer medium to accelerate the reaction; it can also be used as an activator of the reaction to promote some inert compounds to participate in the reaction.
5. In the field of cell culture, dimethyl sulfoxide is a commonly used cell freezing protection agent; in pathology research, it is used for the treatment of tissue sections.
6. In the electronics industry and precision machinery manufacturing, dimethyl sulfoxide can be used to clean precision instruments and electronic components; it is also effective for the removal of grease from metal surfaces.
