Sodium 2-naphthol-6-sulfonate

Updated: 2026-08-26

Overview

Sodium 2-Naphthol-6-sulfonate is an organic compound primarily used as an intermediate in the synthesis of dyes and pigments. It is derived from naphthalene and is known for its sulfonate group, which enhances its solubility in water. This compound plays a crucial role in the production of azo dyes, which are widely used in textiles and other industries. The compound is typically supplied as a white to off-white crystalline powder. Its high solubility in water makes it suitable for various industrial applications, including as a reagent in analytical chemistry. Due to its stability and reactivity, it is a preferred choice in many chemical processes.

Physical and Chemical Properties

Sodium 2-Naphthol-6-sulfonate is characterized by its white to off-white crystalline appearance and high solubility in water. It is slightly soluble in alcohol and other organic solvents. The compound is stable under normal conditions but should be protected from moisture and direct sunlight to prevent degradation. Its molecular weight is 246.21 g/mol, and it features a sulfonate group that contributes to its water solubility. The compound does not have a well-defined melting or boiling point, as it tends to decompose before reaching these states. Its key chemical property is its ability to act as an intermediate in various organic reactions, particularly in dye synthesis.

Main Applications

The primary use of Sodium 2-Naphthol-6-sulfonate is as an intermediate in the production of azo dyes, which are extensively used in the textile industry. These dyes are known for their vibrant colors and durability, making them ideal for fabrics and other materials. In addition to dye manufacturing, this compound is used in organic synthesis as a building block for more complex molecules. It also serves as an analytical reagent in laboratories, where its properties are leveraged for various chemical tests and reactions. Its versatility and reactivity make it a valuable component in multiple industrial processes.

Safety and Storage

Sodium 2-Naphthol-6-sulfonate should be handled with care to avoid inhalation or skin contact. Protective equipment such as gloves and goggles should be worn when working with this compound. It is advisable to work in a well-ventilated area to minimize exposure to dust. For storage, the compound should be kept in a cool, dry place away from direct sunlight and moisture. Properly sealed containers are essential to prevent contamination and degradation. In case of accidental exposure, rinse affected areas with plenty of water and seek medical attention if necessary.

B2B Procurement Guide

When procuring Sodium 2-Naphthol-6-sulfonate, it is important to verify the purity and quality of the product. Reputable suppliers should provide certificates of analysis to confirm the compound's specifications. Bulk orders may offer cost advantages, but buyers should ensure that storage conditions can accommodate larger quantities. Price ranges typically vary between $20 and $50 per kilogram, depending on purity and order volume. It is advisable to compare quotes from multiple suppliers to secure the best deal. Additionally, consider the supplier's reliability and delivery timelines to ensure a smooth procurement process.