Dimethyl disulfide CAS#624-92-0
CAS Number:624-92-0
Chemical Formula:C2H6S2
Synonyms:
methyldithiomethane
Sulfa-hitech
DIMETHYL DISULFIDE
Appearance: Transparent yellow liquid
HS Code: 29309070
MOQ (Minimum Order Quantity): 1 FCL (Full Container Load)
Products Description of Dimethyl disulfide CAS#624-92-0
Industrial-grade dimethyl disulfide (DMDS) features a minimum purity of 99%, presenting as a flammable yellow liquid with a sulfurous odor. Its key physical and chemical properties include a melting point of -84.7℃, a boiling point of 109.6℃, and a vapor pressure of 3.0×10⁶ mPa at 20℃. The compound has a Kow lgP value of 1.91 and a calculated Henry's constant of 105 Pa·m³/mol, with a relative density of 1.062 (20℃). It exhibits a water solubility of 2.7 g/L at 20℃ and is miscible with most organic solvents within the temperature range of 15~25℃. In terms of stability, it remains stable when heated up to 300℃ but becomes unstable upon heating in the presence of oxidizing agents, with a freezing point of 16℃.
Parameters
Melting point | -85 °C |
Boiling point | 109 °C(lit.) |
density | 1.0625 |
vapor density | 3.24 (vs air) |
vapor pressure | 22 mm Hg ( 20 °C) |
FEMA | 3536 | DIMETHYL DISULFIDE |
refractive index | n |
Fp | 76 °F |
storage temp. | Flammables area |
solubility | 2.7g/l |
form | Liquid |
Specific Gravity | 1.0647 (20/4℃) |
color | Clear yellow |
Odor | at 0.10 % in propylene glycol. sulfurous vegetable cabbage onion |
Odor Type | sulfurous |
biological source | rabbit |
Odor Threshold | 0.0022ppm |
explosive limit | 1.1-16.1%(V) |
Water Solubility | <0.1 g/100 mL at 20 ºC |
JECFA Number | 564 |
BRN | 1730824 |
Dielectric constant | 9.7699999999999996 |
Exposure limits | ACGIH: TWA 0.5 ppm (Skin) |
Stability: | Stable. Incompatible with strong bases, strong oxidizing agents, strong reducing agents. Flammable. |
InChIKey | WQOXQRCZOLPYPM-UHFFFAOYSA-N |
LogP | 1.91 at 20℃ |
CAS DataBase Reference | 624-92-0(CAS DataBase Reference) |
NIST Chemistry Reference | Disulfide, dimethyl(624-92-0) |
EPA Substance Registry System | Methyl disulfide (624-92-0) |
Safety Information
Hazard Codes | F,Xn,N,T+ |
Risk Statements | 11-20/22-36-51/53-36/37/38-26-22-36/37 |
Safety Statements | 26-61-45-38-36/37/39-28A-16-60-57-39-29 |
RIDADR | UN 2381 3/PG 2 |
WGK Germany | 2 |
RTECS | JO1927500 |
Autoignition Temperature | 304 °C |
TSCA | Yes |
HazardClass | 3 |
PackingGroup | II |
HS Code | 29309070 |
Hazardous Substances Data | 624-92-0(Hazardous Substances Data) |
Toxicity | LD50 orally in Rabbit: 290 - 500 mg/kg |
Product Application of Dimethyl disulfide CAS#624-92-0
Dimethyl disulfide (DMDS) serves dual roles as an intermediate and a food additive, enhancing the flavor profiles of onion, garlic, cheese, meats, soups, savory blends, and fruit-based flavors. In oil refineries, it functions as a sulfiding agent, while in food production, it facilitates the alpha-substitution of 2-methylfuran-acrolein for edible product synthesis. It is also a key component in the manufacturing of 4-(methylthio)phenol and acts as a replacement for methyl mercaptan in jet fuel formulations. Beyond these uses, DMDS works as an artificial flavoring agent and corrosion inhibitor, and additionally serves as a high-efficiency soil fumigant in agricultural applications.
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