dimethyl sulfone dimethyl sulfone

structural formula

• numbering system
• physical property data
• toxicological data
• ecological data
• molecular structure data
• computing chemical data
• more
  • properties and stability
  • storage method
  • synthesis method
  • purpose

numbering system

cas number:67-71-0

mdl number:mfcd00007566

einecs number:200-665-9

rtecs number:pb2785000

brn number:1737717

pubchem number:24866069

physical property data

1. properties: white needle-like crystals with a strange odor.

2. density (g/ml, 25/4℃): 1.16

3. melting point (ºc): 107-109

4. boiling point ( ºc, normal pressure): 238

5. refractive index: 1.4226

6. flash point (ºc): 143

7. solubility: slightly soluble in water, miscible with lower aromatics. soluble in ether, acetone, methanol. partially miscible with naphthenes, alkenes and paraffins.

toxicological data

1. acute toxicity: rat oral ld50: >5 mg/kg; rabbit administration onto the skin ld50: >5 mg/kg;

ecological data

none yet

molecular structure data

1. molar refractive index: 20.11

2. molar volume (cm³/mol): 82.5

3. isotonic specific volume (90.2k ): 194.9

4. surface tension (dyne/cm): 31.0

5. polarizability (10^-24cm³): 7.97

compute chemical data

1. reference value for hydrophobic parameter calculation (xlogp): -0.4

2. number of hydrogen bond donors: 0

3. number of hydrogen bond acceptors: 2

4. number of rotatable chemical bonds: 0

5. number of tautomers: none

6. topological molecule polar surface area 42.5

7. number of heavy atoms: 5

8. surface charge: 0

9. complexity: 85.3

10. number of isotope atoms: 0

11. determine the number of atomic stereocenters: 0

12. uncertain number of atomic stereocenters: 0

13. determine the number of chemical bond stereocenters: 0

14. number of uncertain chemical bond stereocenters: 0

15. number of covalent bond units: 1

properties and stability

none yet

storage method

this product should be sealed and stored in a cool, dry place away from light. ​

synthesis method

it is obtained by oxidation of dimethyl sulfoxide with nitric acid. oxidize dimethyl sulfoxide with nitric acid at 140-145°c. after the reaction is completed, cool it and filter it to obtain white needles.�crystallized crude product. after further distillation under reduced pressure, the 138-145°c (98.42kpa) fraction is collected as the finished product.

purpose

it is used as a high-temperature solvent for inorganic and organic substances; raw material for organic synthesis; raw material for food additives and health care products; it can also be used as gas chromatography stationary liquid (maximum operating temperature 30°c, solvent is acetone) and analytical reagent. high boiling point solvents, polar solvents, selective solvents for extractive distillation, electroplating bath solvents, ink and adhesive solvents.