Overview
2-Naphthol Additive, also known as beta-Naphthol, is an organic compound derived from naphthalene. It is widely used as an intermediate in the synthesis of dyes, pigments, and pharmaceuticals. Its antioxidant properties make it valuable in rubber and plastic industries. First synthesized in the 19th century, 2-Naphthol has become a staple in industrial chemistry due to its versatility and relatively low production cost. It is commonly produced through the sulfonation of naphthalene followed by alkali fusion.
Physical and Chemical Properties
2-Naphthol appears as a white to light yellow crystalline powder with a faint phenolic odor. It has a molecular weight of 144.17 g/mol and a density of 1.22 g/cm³. The compound melts at 121-123°C and boils at 285-286°C. Its solubility profile shows slight solubility in water but good solubility in organic solvents like ethanol and ether. The compound exhibits weak acidic properties, forming salts with strong bases. It is stable under normal conditions but may decompose under prolonged exposure to light or heat.
Main Applications
The primary use of 2-Naphthol is in the production of azo dyes and pigments, where it serves as a coupling component. These dyes are extensively used in textiles, inks, and paints. The compound is also employed in the synthesis of pharmaceuticals, particularly in the production of antiseptics and antipyretics. In the rubber industry, 2-Naphthol acts as an antioxidant, preventing premature aging of rubber products. Additionally, it finds applications in the manufacture of photographic chemicals and as a precursor for other organic compounds.
Safety and Storage
2-Naphthol is classified as harmful if swallowed and can cause skin and eye irritation. Proper personal protective equipment, including gloves and safety goggles, should be worn when handling the compound. Adequate ventilation is essential to avoid inhalation of dust. For storage, keep the compound in a cool, dry place away from direct sunlight and moisture. Containers should be tightly sealed to prevent contamination and degradation. In case of spills, absorb with an inert material and dispose of according to local regulations.
B2B Procurement Guide
When procuring 2-Naphthol Additive, buyers should verify the purity level, typically ranging from 98% to 99.5%. Request certificates of analysis (CoA) and material safety data sheets (MSDS) from suppliers to ensure compliance with safety and quality standards. Consider sourcing from manufacturers with ISO certifications to guarantee consistent quality. Bulk purchases may offer cost advantages, but ensure proper storage facilities are available. Lead times can vary, so plan procurement accordingly to avoid production delays.
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