Overview
1,4-Dioxane is a clear, colorless liquid with a faint ether-like odor. It is a heterocyclic compound consisting of a six-membered ring containing two oxygen atoms. Primarily used as a solvent, it is valued for its ability to dissolve a wide range of organic and inorganic compounds. First synthesized in the late 19th century, 1,4-dioxane has become an important industrial chemical. Its stability and solubility properties make it a preferred choice in various manufacturing processes, though its potential health risks require careful handling.
Physical and Chemical Properties
1,4-Dioxane exhibits high miscibility with water and most organic solvents, making it a versatile solvent. Its relatively low boiling point (101.1°C) allows for easy removal during product purification processes. The compound is highly flammable and can form explosive peroxides when exposed to air over time. It is chemically stable under normal conditions but reacts with strong oxidizing agents. Its vapor is heavier than air, posing inhalation hazards in poorly ventilated areas.
Main Applications
In the pharmaceutical industry, 1,4-dioxane serves as a solvent for drugs and in the synthesis of active pharmaceutical ingredients (APIs). It is also used in the production of adhesives, paints, and coatings. The cosmetic industry utilizes it as a solvent for fragrances and as a stabilizer for chlorinated solvents. However, due to health concerns, many manufacturers are seeking alternatives for personal care products.
Safety and Storage
Proper storage of 1,4-dioxane requires airtight containers in cool, well-ventilated areas away from ignition sources. Containers should be checked regularly for peroxide formation, especially if stored for extended periods. Workers handling this chemical must wear appropriate PPE, including gloves, goggles, and respiratory protection if ventilation is inadequate. Spills should be contained immediately using inert absorbent materials.
B2B Procurement Guide
When procuring 1,4-dioxane, buyers should specify the required purity level (e.g., 99% pure for laboratory use vs. technical grade for industrial applications). Verify that the supplier provides proper safety documentation, including SDS. Consider purchasing stabilized versions containing peroxide inhibitors for long-term storage. Bulk purchases typically offer better pricing, but ensure adequate storage facilities are available. Always confirm regulatory compliance for your specific region and industry.
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