n-Dodecyl Mercaptan (NDM) [MC-RM-AC-006]

n-Dodecyl Mercaptan (NDM) [MC-RM-AC-006]

Product Description

n-Dodecyl Mercaptan (NDM), also known as n-Dodecylthiol, is an organic sulfur compound with the chemical formula C₁₂H₂₅SH. It is a colorless or pale yellow liquid with a strong characteristic odor. As an important chemical intermediate, n-Dodecyl Mercaptan plays a crucial role in many industrial applications, especially in plastics, coatings, rubber, and petrochemical industries. Below is a detailed explanation of n-Dodecyl Mercaptan (NDM):

Basic Information:
  • Chemical Formula: C₁₂H₂₅SH
  • Molecular Weight: 202.4 g/mol
  • Appearance: Colorless or pale yellow liquid with a characteristic sulfur odor.
  • Melting Point: Approximately -20°C.
  • Boiling Point: Around 270°C.
  • Solubility: Soluble in alcohols, ethers, and chloroform, but almost insoluble in water.
Chemical Properties:
  • Mercapto Group: n-Dodecyl Mercaptan contains a thiol group (-SH), which has strong nucleophilic properties and can react with many other molecules. The presence of the thiol group gives it good reducing properties, allowing it to function as a reducing agent in chemical reactions.
  • High Reactivity: n-Dodecyl Mercaptan can react with certain metal ions or organic compounds. It is often involved in catalytic reactions and cross-linking processes, where the thiol group plays a key role in altering reaction pathways and product properties.
Safety and Precautions:
  • Irritancy: n-Dodecyl Mercaptan has a strong, irritating odor. Prolonged or high-concentration exposure may cause respiratory irritation, skin allergies, or other discomforts. It is important to wear appropriate protective equipment, such as gloves, goggles, and masks when handling the material.
  • Flammability: n-Dodecyl Mercaptan is a flammable liquid. It should be stored away from sources of fire, in a cool and well-ventilated area, and proper fire safety measures should be taken.
  • Storage: Store in a cool, dry, well-ventilated place, away from moisture. It should not come into contact with oxidizing agents, strong acids, or strong bases to prevent unwanted reactions or decomposition.
Main Applications:
  1. Plastic and Rubber Industries:
    • Crosslinking Agent: n-Dodecyl Mercaptan is used as a crosslinking agent in plastics and rubber, particularly in polyethylene, polypropylene, and other polymers. It reacts with polymer chains to promote crosslinking, improving the material’s strength, elasticity, and heat resistance.
    • Stabilizer: It can also function as an antioxidant and stabilizer in the production of plastics and rubber, preventing degradation due to high temperatures or UV exposure.
  2. Coatings and Inks:
    • In the production of coatings and inks, n-Dodecyl Mercaptan acts as a dispersing agent, improving the dispersion of pigments and enhancing the adhesion, flow properties, and durability of the coatings and inks, ensuring smoothness and uniformity.
  3. Petrochemical Industry:
    • In the extraction of petroleum and natural gas, n-Dodecyl Mercaptan is used as a scavenger to remove hydrogen sulfide (H₂S) and other harmful gases from natural gas, helping purify the gas.
  4. Metal Processing:
    • In metalworking and surface treatment, n-Dodecyl Mercaptan is used for passivating metals, effectively preventing oxidation and improving the corrosion resistance of metal surfaces.
  5. Chemical Synthesis:
    • n-Dodecyl Mercaptan is commonly used as an intermediate in organic synthesis to produce various chemical products, such as thiol compounds, plasticizers, and more. It can also serve as a catalyst or reducing agent in specific chemical reactions.

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