Electro Plating, High-Purity Solvents

3-Chloropropyne (Propargyl Chloride)

3-Chloropropyne, also known as propargyl chloride, is a clear, colorless to straw-colored liquid with a pungent odor. With the chemical formula C3H3Cl, it belongs to the alkyne and alkyl halide families. This highly reactive organic compound is a vital intermediate in fine chemical synthesis and industrial manufacturing. Known for its versatile triple bond and chlorine atom, it facilitates various chemical transformations, including substitution and addition reactions. It is primarily synthesized through the chlorination of propargyl alcohol. Due to its significant volatility and flammability, it requires careful handling and storage under inert conditions. Industrially, it serves as a fundamental building block for pharmaceuticals, agrochemicals, and specialty polymers. Its unique structural properties make it indispensable for creating complex molecules, especially in the development of corrosion inhibitors and flavor enhancers. Despite its utility, the compound is toxic and irritating, necessitating stringent safety protocols and protective equipment during its industrial application and transport phases.

Attributes

Key Features and Benefits

High reactivity due to terminal alkyne and primary chloride groups.
Versatile building block for diverse organic synthesis pathways.
Colorless liquid providing high purity for sensitive chemical applications.
Efficient intermediate for synthesizing propargyl amines and ethers.
Enhances the performance of specialized corrosion inhibitors for metals.
Facilitates the introduction of triple bonds into complex molecules.
Compatible with various coupling reactions including Sonogashira and Grignard.
Proven effectiveness in developing advanced pharmaceutical and agrochemical compounds.
Essential for producing high-value specialty chemicals and polymers.
Stable when stored correctly under prescribed refrigerated industrial conditions.
Enables rapid derivatization due to accessible electrophilic sites for broad molecular functionalization.

Specifications

Technical Highlights

Molecular Formula: C3H3Cl with a molecular weight of 74.51 g/mol.
Boiling point ranges approximately between 56 and 57 degrees Celsius.
Density is recorded at approximately 1.03 g/mL at 25 degrees.
Highly flammable with a flash point of 18 degrees Celsius.
Refractive index typically measures around 1.432 for high purity grades.
Soluble in common organic solvents like ethanol, ether, and benzene.
Exhibits sharp IR absorption peaks for the terminal alkyne C-H stretch.
Sensitive to heat and moisture, requiring stabilized storage to prevent degradation.
Reacts vigorously with strong bases and oxidizing agents.
Maintains vapor pressure of 25.5 kPa at standard ambient temperatures.

Download Technical Data Sheet (TDS)

Practical industry uses

Applications

Key intermediate in the synthesis of fungicides and herbicides.
Used in producing pharmaceuticals, specifically in cardiovascular and antibiotic drugs.
Primary component in manufacturing corrosion inhibitors for acid-pickling baths.
Utilized in the synthesis of propargyl alcohol derivatives and ethers.
Acts as a vital reagent in the production of specialty surfactants.
Employed in the polymer industry for functionalizing resins and coatings.
Essential in the fragrance industry for creating specific aromatic compounds.
Used in laboratories for complex organic coupling and cyclization reactions.
Serves as a precursor for developing advanced chemical research materials.
Contributes to electroplating additives to improve finish quality of metal surfaces.