Description

sec-Dodecyl Mercaptan is a specialized organic sulfur compound belonging to the class of secondary alkyl mercaptans. It serves as a critical chain transfer agent and modifier in free-radical polymerization processes, directly impacting polymer molecular weight and structure. This product is essential for manufacturers in the synthetic rubber, plastics, and specialty polymer industries seeking precise control over material properties.

Application

• Polymerization Modifier: Primary use as a chain transfer agent (CTA) in the production of styrene-butadiene rubber (SBR), acrylonitrile-butadiene-styrene (ABS) resins, and other synthetic rubbers to regulate molecular weight.
• Plastic Manufacturing: Employed in the synthesis of various thermoplastics to control polymer chain length and improve processability.
• Lubricant & Fuel Additive Intermediate: Used in the formulation of extreme pressure (EP) additives for lubricants and as a precursor for other sulfur-containing specialty chemicals.
• Surface Active Agent: Acts as an intermediate in the production of certain surfactants and flotation agents.
• Pharmaceutical & Agrochemical Synthesis: Serves as a building block or sulfur source in the synthesis of more complex molecules for pharmaceutical and agricultural applications.

Basic Information

Product Name	sec-Dodecyl Mercaptan
CAS No.	94903-61-4
Molecular Formula	C₁₂H₂₆S
Molecular Weight	202.40 g/mol
Synonyms	2-Dodecanethiol; Secondary Dodecyl Mercaptan; tert-Dodecyl Mercaptan (TDM) (common industry name); 2-Dodecylthiol; Dodecane-2-thiol; SHD; Chain Transfer Agent TDM; Sulfurated C12 alcohol
EINECS	Contact for details

Quality Control

Our sec-Dodecyl Mercaptan is produced under stringent quality management systems to ensure batch-to-batch consistency and reliability for industrial processes. Each lot undergoes comprehensive analysis, including purity assay and impurity profiling. Certificates of Analysis (COA) detailing all critical parameters are provided with every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area away from heat sources and incompatible materials such as strong oxidizing agents. Due to its easily oxidized nature, it is recommended to store under an inert atmosphere (e.g., nitrogen) for long-term preservation. Recommended storage temperature: 15-25°C.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 98.0%
Water Content (KF)	≤ 0.1%
Specific Gravity (20°C)	0.84 - 0.86
Refractive Index (n20/D)	1.458 - 1.462

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.