471577

Dimetilsulfeto

≥99%

• Sinônimo(s): DMS, Metilsulfeto
• Fórmula linear: (CH₃)₂S
• Número CAS: 75-18-3
• Peso molecular: 62.13
• Beilstein: 1696847
• Número CE: 200-846-2
• Número MDL: MFCD00008562
• Código UNSPSC: 12352100
• ID de substância PubChem: 57650900
• NACRES: NA.21

Propriedades

• densidade de vapor: 2.1 (vs air)
• Nível de qualidade: 200
• pressão de vapor: 26.24 psi ( 55 °C); 7.79 psi ( 20 °C)
• Ensaio: ≥99%
• temperatura de autoignição: 402 °F
• Lim. expl.: 19.7 %
• índice de refração: n20/D 1.435 (lit.)
• p.e.: 38 °C (lit.)
• pf: −98 °C (lit.)
• solubilidade: water: soluble 7.28 g/L at 20 °C
• densidade: 0.846 g/mL at 25 °C (lit.)
• grupo funcional: thioether
• cadeia de caracteres SMILES: CSC
• InChI: 1S/C2H6S/c1-3-2/h1-2H3
• chave InChI: QMMFVYPAHWMCMS-UHFFFAOYSA-N
• Informações sobre genes: rat ... Maoa(29253) , Maob(25750)

Descrição

Descrição geral

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]

Aplicação

• 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).

Informações de segurança

• Pictogramas: GHS02
• Palavra indicadora: Danger
• Frases de perigo: H225
• Declarações de precaução: P210 - P233 - P240 - P241 - P242 - P243
• Classificações de perigo: Flam. Liq. 2
• Código de classe de armazenamento: 3 - Flammable liquids
• Classe de risco de água (WGK): WGK 1
• Ponto de fulgor (°F): -32.8 °F - closed cup
• Ponto de fulgor (°C): -36 °C - closed cup
• Equipamento de proteção individual: Eyeshields, Faceshields, Gloves