Key Features & Benefits

• High-Efficiency Sulfiding: Decomposes at lower temperatures to provide active sulfur, effectively protecting and activating catalysts to extend their service life.

• High Sulfur Content: With a high sulfur content of approximately 68%, DMDS offers significant economic benefits compared to other sulfiding agents.

• Enhanced Safety: An ideal and safer-to-handle alternative to highly toxic agents like mercaptans and hydrogen sulfide, improving operational safety.

• Versatile Applications: Used not only for catalyst sulfiding but also as a pesticide intermediate, an effective solvent, and a raw material in specific chemical syntheses.

• Consistent Quality: Our rigorous quality control system ensures that the purity and key parameters of every batch of DMDS meet the highest industry standards.

Product Information

Product Description

Dimethyl Disulfide (DMDS), CAS No. 624-92-0, is a vital organosulfur compound renowned for its high efficiency and unique chemical properties. It plays an indispensable role in sectors such as petrochemicals, agriculture, and fine chemicals. As a professional chemical supplier, we are committed to providing high-purity, stable-quality DMDS to meet your diverse industrial demands.

At room temperature, DMDS is a slightly yellow, transparent liquid with a strong, characteristic odor. Its primary value lies in its function as a safe and effective "sulfur carrier," decomposing under specific conditions to provide active sulfur. This property makes it the preferred pre-sulfiding agent for hydrocracking and hydrotreating catalysts in refineries and chemical plants worldwide.

Key Features & Benefits

• High-Efficiency Sulfiding: Decomposes at lower temperatures to provide active sulfur, effectively protecting and activating catalysts to extend their service life.

• High Sulfur Content: With a high sulfur content of approximately 68%, DMDS offers significant economic benefits compared to other sulfiding agents.

• Enhanced Safety: An ideal and safer-to-handle alternative to highly toxic agents like mercaptans and hydrogen sulfide, improving operational safety.

• Versatile Applications: Used not only for catalyst sulfiding but also as a pesticide intermediate, an effective solvent, and a raw material in specific chemical syntheses.

• Consistent Quality: Our rigorous quality control system ensures that the purity and key parameters of every batch of DMDS meet the highest industry standards.

Main Applications

1. Petrochemical Industry:

   • Catalyst Pre-sulfiding: Widely used as a sulfiding agent for catalysts (e.g., Co-Mo, Ni-Mo) in refinery units like hydrotreaters, hydrocrackers, and reformers. It transforms the catalyst into its most active sulfide state while preventing initial deactivation from coking.

   • Furnace Passivation: Used in ethylene crackers to passivate metal surfaces in furnace tubes, inhibiting the formation of carbon monoxide and coke.

2. Agriculture Sector:

   • Soil Fumigant: Acts as an effective, broad-spectrum soil fumigant for controlling nematodes, fungi, insects, and weeds, serving as a viable alternative to methyl bromide.

3. Fine Chemicals:

   • Chemical Intermediate: Used in the synthesis of other sulfur-containing chemicals, such as methanesulfonyl chloride and methanesulfonic acid.

   • Solvent: Functions as a non-protic, medium-polarity solvent in certain chemical reactions.

4. Flavors & Fragrances:

   • In extremely low concentrations, it can be used as a food additive to impart onion or garlic-like flavors (subject to relevant regulations).

Technical Specifications

Packaging & Storage

• Packaging: Standard packaging includes 200 kg/drum (internally coated steel drums or HDPE drums) or 20-24 MT/ISO Tank. Custom packaging solutions are available based on order volume.

• Storage: Store in a cool, dry, well-ventilated warehouse away from fire and heat sources. The storage temperature should not exceed 30°C. Keep separate from oxidants, acids, and alkalis. Handle with care to prevent damage to packaging and containers.

Why Choose Us?

• Reliable Supply: Leveraging a robust supply chain network, we guarantee a stable and long-term supply of DMDS.

• Quality Assurance: Every batch is rigorously tested by GC analysis, and a full Certificate of Analysis (COA) is provided.

• Professional Service: Our experienced sales and technical teams offer comprehensive support, from product inquiries to logistics.

• Competitive Pricing: We optimize our procurement and operational costs to offer you highly competitive market prices.

Contact us today for the latest quotation and product samples!