471569

Dimethyl disulfide

≥99.0%

• Synonyma: DMDS, Methyl disulfide
• Lineární vzorec: CH₃SSCH₃
• Číslo CAS: 624-92-0
• Molekulová hmotnost: 94.20
• Beilstein/REAXYS Number: 1730824
• EC Number: 210-871-0
• MDL number: MFCD00008561
• UNSPSC Code: 12352100
• PubChem Substance ID: 24870743
• NACRES: NA.22

Vlastnosti

• vapor density: 3.24 (vs air)
• Quality Level: 100
• vapor pressure: 22 mmHg ( 20 °C)
• assay: ≥99.0%
• autoignition temp.: >572 °F
• expl. lim.: 16 %
• refractive index: n20/D 1.525 (lit.)
• bp: 109 °C (lit.)
• mp: −85 °C (lit.)
• density: 1.046 g/mL at 25 °C (lit.)
• SMILES string: CSSC
• InChI: 1S/C2H6S2/c1-3-4-2/h1-2H3
• InChI key: WQOXQRCZOLPYPM-UHFFFAOYSA-N

Popis

General description

Dimethyl disulfide (DMDS) is an organic dialkyl disulfide. It is one of the odorous compounds found on the working face of typical municipal solid waste landfill in China. DMDS forms adducts with mono-unsaturated acetates by addition across carbon-carbon double bonds. These adducts are useful to locate the of double bonds in long-chain mono-unsaturated acetates. Adsorption of DMDS on Au(111) surface has been investigated by the density functional theory (DFT) within a generalized gradient approximation and experimental high-resolution electron energy loss spectroscopy (HREELS) techniques.

Application

Dimethyl disulfide (DMDS) may be used to derivatize alkenes for the determination of position of double bond by MS. It may also be used to determine the location of the double-bond position of monounsaturated fatty acids in Campylobacter cryaerophila by combined GC-MS analysis.

Legal Information

Product of Arkema Inc.

Bezpečnostní informace

• pictograms: GHS02,GHS06,GHS08,GHS09
• signalword: Danger
• hcodes: H225,H301 + H331,H317,H319,H336,H370,H410
• pcodes: P210 - P273 - P280 - P301 + P310 - P303 + P361 + P353 - P304 + P340 + P311
• Hazard Classifications: Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Eye Irrit. 2 - Flam. Liq. 2 - Skin Sens. 1 - STOT SE 1 Inhalation - STOT SE 3
• target_organs: Central nervous system, Upper respiratory tract
• Storage Class: 3 - Flammable liquids
• wgk_germany: WGK 3
• flash_point_f: 59.0 °F - closed cup
• flash_point_c: 15 °C - closed cup
• ppe: Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter