Shandong Huashang Chemical Co., Ltd. is a high-tech enterprise specializing in the research and development, manufacturing, and sales of fine chemicals. Headquartered in Jinan, Shandong, China, we are committed to delivering high-quality products to our global partners. Currently, over 90% of our products are exported to developed markets, including North America, Europe, Japan, South Korea, and the Middle East.
Basic Information
Product Name: Sodium 2-naphthalenesulfonate
CAS Number: 532-02-5
Molecular Formula: C??H?NaO?S
Molecular Weight: 230.22 g/mol
Synonyms: 2-Naphthalenesulfonic acid sodium salt; Sodium beta-naphthalenesulfonate; β-Naphthalenesulfonic acid sodium salt
Classification: Anionic surfactant, organic synthetic intermediate, dye auxiliary, chemical raw material
Physical & Chemical Properties
Appearance: White to off-white crystalline powder, odorless, uniform texture
Melting Point: >300 °C
Boiling Point: Decomposes at high temperature without fixed boiling point
Density: 1.45 g/cm3
Solubility: Easily soluble in water, soluble in ethanol; insoluble in ether and hydrocarbon solvents
Stability: Stable at room temperature and normal pressure; hygroscopic; stable in neutral and alkaline conditions, decomposes in strong acid environment
Key Parameters: Purity ≥98.0%; Moisture ≤1.0%; Water Insoluble Matter ≤0.1%
Uses
Sodium 2-naphthalenesulfonate is a common anionic aromatic sulfonate compound.
It is widely used as dye dispersant, leveling agent and dyeing auxiliary in textile and dye industry.
It serves as organic synthesis intermediate for preparing naphthalene series fine chemicals and pharmaceutical intermediates.
Also used as concrete water reducer raw material, electroplating additive, and analytical reagent in chemical laboratory.
Packaging & Storage
Packaging
Laboratory grade: 10g, 50g, 100g sealed plastic or glass bottles
Industrial grade: 25kg woven bag or HDPE drum with inner lining
Storage: Store in cool, dry, well ventilated warehouse; keep tightly sealed to prevent moisture absorption; keep away from strong acid and oxidant
Shelf Life: 24 months under recommended sealed storage
Transportation: Avoid rain and humid environment; handle gently to prevent package breakage and moisture ingress
Comprehensive Specification Table
