China Dimethyl Sulfoxide Factory
Dimethyl sulfoxide (DMSO) CAS:67-68-5
Dimethyl sulfoxide Chemical Properties
MF:C2H6OS
MW:78.13
EINECS:200-664-3
Melting point: 18.4°C
Boiling point 189°C
Density 1.100g / mL
Color Colorless liquid
Items |
Spec. |
Result |
Purity(DMSO) |
≥99.90% |
99.99% |
Crystallization Point |
18.1℃-18.45℃ |
18.30℃ |
Acid Value |
≤0.03mgKOH/g |
0.01mgKOH/g |
Crystallization point(℃) |
≥18 |
18.3 |
Water content KF % |
≤0.05% |
0.0% |
Transmittance(400nm) |
≥96.00% |
100.86% |
Refractive Index(20℃) |
1.4775-1.4790 |
1.4785 |
2: Dimethyl sulfoxide application in petroleum processing
Its advantages are: (1) high selectivity of aromatics; 2 room temperature restrict the miscibility of aromatic hydrocarbons; (3) low extraction temperature, and does not react with alkanes, alkenes, water; (4) non-corrosive, non-toxic; 5] extraction process is simple, less equipment, energy saving; [6] insoluble olefin is suitable for high olefine oil; Once dissolved recycling reverse extraction available .
3: In the application of synthetic fiber
DMSO in acrylic spinning in the application, the earliest is toyo rayon, patent application, make the acrylonitrile polymerization in DMSO, no separation, direct jet in the water bath, get bulk, soft and easy to artificial wool dyeing. Its advantage is to simplify the process, high solubility, high boiling point solvent, non-toxic, easy recovery, good product performance and low cost.
4: In the agricultural chemicals, agricultural fertilizer application
DMSO is agricultural chemicals, agricultural fertilizer solvents, penetrating agent and synergistic agent.
5: In the application of the dyes
Jilin dye factory in jintan and Greenland used after using DMSO production capacity in production, the yield increased significantly, the dye factory is still in use in sichuan province. According to the report in the printing and dyeing in DMSO make dyeing even eliminate the color difference.
6: Dimethyl sulfoxide application in coatings
DMSO as solvent, solvent, antifreeze, is widely used in the other hand paint. Because the DMSO to various resin good solubility, thus as solubilizer in some of the paint. More important purpose is to paint. Adding alkali DMSO or nitric acid, can get rid of, including epoxy resin, all kinds of paint film.
7: In the application of the antifreeze
DMSO antifreeze in northern cold region for deicing agent, paint, all kinds of latex antifreeze, gasoline, jet fuel deicing agent, bone marrow, blood, low temperature preservation of antifreeze, etc.