471577

Dimethyl sulfide

≥99%

• Synonim(y): DMS, Methyl sulfide
• Wzór liniowy: (CH₃)₂S
• Numer CAS: 75-18-3
• Masa cząsteczkowa: 62.13
• Beilstein: 1696847
• Numer WE: 200-846-2
• Numer MDL: MFCD00008562
• Kod UNSPSC: 12352100
• Identyfikator substancji w PubChem: 57650900
• NACRES: NA.21

Właściwości

• gęstość pary: 2.1 (vs air)
• Poziom jakości: 200
• ciśnienie pary: 26.24 psi ( 55 °C); 7.79 psi ( 20 °C)
• Próba: ≥99%
• temp. samozapłonu: 402 °F
• granice wybuchowości: 19.7 %
• współczynnik refrakcji: n20/D 1.435 (lit.)
• bp: 38 °C (lit.)
• mp: −98 °C (lit.)
• rozpuszczalność: water: soluble 7.28 g/L at 20 °C
• gęstość: 0.846 g/mL at 25 °C (lit.)
• grupa funkcyjna: thioether
• ciąg SMILES: CSC
• InChI: 1S/C2H6S/c1-3-2/h1-2H3
• Klucz InChI: QMMFVYPAHWMCMS-UHFFFAOYSA-N
• informacje o genach: rat ... Maoa(29253) , Maob(25750)

Opis

Opis ogólny

Dimethyl sulfide (DMS) is a biogenic sulfur compound[1] that is released from the ocean to the atmosphere.[2] It forms the main component of the global sulfur cycle.[1][2] The thermal decomposition behavior of dimethyl sulfide in gas phase has been investigated in a static system at 681-723K.[3] The mechanism of its photochemical oxidation in atmosphere has been described.[2] The rate constant of the gas phase reaction between OH radicals and DMS have been determined by relative rate methods and flash photolysis technique.[4] The differential Raman cross section, σ_DMS at different excitation wavelengths has been measured.[1] The adsorption of DMS on activated carbons (ACs) has been reported to take place by hydrogen bonding.[5]

Zastosowanie

• Characterization of the aroma-active compounds in Xiaokeng green tea by three pretreatment methods combined with gas chromatography-olfactometry (GC-O).: This study identified and characterized the aroma-active compounds in Xiaokeng green tea, highlighting the significant role of dimethyl sulfide as a contributor to its unique aroma profile (Gan et al., 2024).
• Novel insights into dimethylsulfoniopropionate cleavage by deep subseafloor fungi.: This article provides new insights into the metabolic pathways of deep-sea fungi, focusing on the cleavage of dimethylsulfoniopropionate (DMSP) and subsequent production of dimethyl sulfide, impacting sulfur cycling in marine ecosystems (Liu et al., 2024).
• Adsorption Mechanism and Regeneration Performance of Calcined Zeolites for Hydrogen Sulfide and Its Application.: The study explores the use of calcined zeolites for the adsorption of hydrogen sulfide, a precursor to dimethyl sulfide, and discusses the material′s regeneration performance for industrial applications (Zha et al., 2024).

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Informacja o środkach bezpieczeństwa

• Piktogramy: GHS02
• Hasło ostrzegawcze: Danger
• Zwroty wskazujące rodzaj zagrożenia: H225
• Zwroty wskazujące środki ostrożności: P210 - P233 - P240 - P241 - P242 - P243
• Klasyfikacja zagrożeń: Flam. Liq. 2
• Kod klasy składowania: 3 - Flammable liquids
• Klasa zagrożenia wodnego (WGK): WGK 1
• Temperatura zapłonu (°F): -32.8 °F - closed cup
• Temperatura zapłonu (°C): -36 °C - closed cup
• Środki ochrony indywidualnej: Eyeshields, Faceshields, Gloves