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Sodium methylsulfinylmethylide (also called NaDMSO or dimsyl sodium) is the sodium salt of the conjugate base of dimethyl sulfoxide. This unusual salt has some uses in organic chemistry as a base and nucleophile. Since the first publication in 1965 by Corey et al., [2] a number of additional uses for this reagent have been identified. [3]
Dimethyl sulfone (DMSO 2) is an organosulfur compound with the formula (CH 3) 2 SO 2. It is also known by several other names including methyl sulfone and (especially in alternative medicine) methylsulfonylmethane (MSM). [4] This colorless solid features the sulfonyl functional group and is the simplest of the sulfones. It is relatively inert ...
The following chart shows the solubility of various ionic compounds in water at 1 atm pressure and room temperature (approx. 25 °C, 298.15 K). "Soluble" means the ionic compound doesn't precipitate, while "slightly soluble" and "insoluble" mean that a solid will precipitate; "slightly soluble" compounds like calcium sulfate may require heat to precipitate.
It is based on a direct reaction between methane and oleum at around 50 °C and 100 bar in the presence of a potassium persulfate initiator. [10] Further addition of sulfur trioxide gives methanedisulfonic acid instead. [11] This technology was acquired and commercialized by BASF in 2019. [12]
In organic chemistry, a methyl group is an alkyl derived from methane, containing one carbon atom bonded to three hydrogen atoms, having chemical formula CH 3 (whereas normal methane has the formula CH 4). In formulas, the group is often abbreviated as Me. This hydrocarbon group occurs in many organic compounds. It is a very stable group in ...
Potassium sodium tartrate – KNaC 4 H 4 O 6; Potassium sulfate – K 2 SO 4; Potassium sulfite – K 2 SO 3; Potassium sulfide – K 2 S; Potassium tartrate – K 2 C 4 H 4 O 6; Potassium tetraiodomercurate(II) – K 2 HgI 4; Potassium thiocyanate – KSCN; Potassium titanyl phosphate – KTiOPO 4; Potassium vanadate – KVO 3; Tripotassium ...
Treated with sodium hydride, trimethylsulfoxonium forms dimethylsulfoxonium methylide. [1] Trimethylsulfoxonium can polymerise to yield polyethylene. [2] [3] Copper, zinc and palladium ions in water react with trimethylsulfoxonium and sodium hydroxide to form sulfur ylide complexes. [4]
Reduction of sulfur gives various polysulfides with the formula S x 2-, many of which have been obtained crystalline form. Illustrative is the production of sodium tetrasulfide: 4 Na + S 8 → 2 Na 2 S 4. Some of these dianions dissociate to give radical anions, such as S 3 − gives the blue color of the rock lapis lazuli.