Methyl disulfide CAS 624-92-0 Dimethyldisulfide Dimethyl disulphide Dimethyl disulfide Methyl disulphide DMDS

Place of Origin: Shandong,China (Mainland)
Brand Name: MOSINTER
CAS No.: 624-92-0
Melting Point: -85 °C
Density: 1.0625
Boiling point: 109 °C(lit.)
vapor density: 3.24 (vs air)
vapour pressure: 22 mm Hg ( 20 °C)
refractive index: n20/D 1.525(lit.)
flashing point: 76 °F
storage condition: Flammables area
soluble: <0.1 g/100 mL at 20 ºC

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Product Description

Payment & Shipping Terms Supply Capacity
Payment Terms:T/T, WUProduction Capacity:2000 Ton/Year
Min. Order:100 KilogramPacking:According to the...
Means of Transport:Ocean, Air, LandDelivery Date:within 7 days

Methyl disulfide (CAS: 624-92-0)

 

Item

Index

Outward   appearance

Light yellow transparent liquid

Purity   % ≥

99.5

Sulfur   content % ≥

68.1

Methyl   mercaptan % ≤

0.1

Moisture   % ≤

0.06

Polysulfides   % ≤

0.2

Residue   on ignition % ≤

0.1

Melting   point

-85℃

Boiling   Point

109.7℃

Flash   point

24℃

Relative Density

1.0625

Index   of refraction

1.5250

 

Dimethyl disulfide (DMDS) is an organic chemical compound with the molecular formula CH3SSCH3 which is the simplest disulfide. It is a flammable liquid with an unpleasant, garlic-like odor.

Occurrence

Dimethyl disulfide along with dimethyl sulfide and dimethyl trisulfide have been confirmed as volatile compounds given off by the fly-attracting plant known as dead-horse arum (Helicodiceros muscivorus). These flies are attracted to the odor of fetid meat, they help pollinate this plant.

Chemical reactions

Important reactions include chlorination giving methanesulfenyl chloride (CH3SCl), methanesulfinyl chloride (CH3S(O)Cl), and methanesulfonyl chloride(CH3SO2Cl) as well as oxidation with hydrogen peroxide or peracetic acid giving the thiosulfinate methyl methanethiosulfinate (CH3S(O)SCH3).

Uses

DMDS is used as a food additive in onion, garlic, cheese, meats, soups, savory flavors, and fruit flavors. Industrially, DMDS is used in oil refineries as a sulfiding agent. DMDS is also an effective soil fumigant in agriculture, registered in many states in theU.S.as well as globally. In this capacity, DMDS is an important alternative in replacing methyl bromide, which is being phased out. This pesticide is marketed as "Paladin" byArkema.


Food use

DMDS is used to alpha substitute 2-methylfuran-acrolein to produce a food stuff used in concentrations from 0.02 ppm up to 50 ppm.


Industrial use

DMDS is a stable pale yellow liquid which works as an effective product in the sulfiding process because of its high sulfur content. It is the sulfiding industry's reagent of choice because it offers more sulfur per pound of reagent when compared to its nearest competitor dimethyl sulfide.

DMDS is used in the preparation of 4-(methylthio)phenol which is used in the production of various pesticides. DMDS and chlorine are reacted with borontriflouride phenolate to produce 4-(methylthio)phenol. Thiophene and DMDS are blended with combustible hydrocarbon fuel gas to impart a gassy odor to the fuel gas. DMDS is used as a sulfiding reagent to control catalyst activity.

Category: Other Chemical Products


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