Sodium naphthionate

Sodium naphthionate

4-Amino-1-naphthalenesulfonic acid sodium salt; Sodium 4-aminonaphthalene-1-sulfonate; Sodium Naphthylamine-4-sulfonate

CAS 130-13-2

Chemical Formula C10H8NNaO3S

Molecular Weight 245.23 g/mol

Sodium naphthionate is a sulfonated aromatic amine salt derived from naphthalene. It is primarily used as a key intermediate in the manufacture of azo dyes, pigments, and optical brightening agents. Its sulfonate group imparts water solubility, making it highly reactive in coupling reactions for producing vivid and stable colorants. Due to its stability and reactivity, it is a vital raw material in the textile, paper, and leather dyeing industries.
 

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Industrial Uses

1. Fabric Solutions

  • Water-Soluble Azo Dye Intermediate: Its sulfonate functionality allows it to dissolve easily in water, enabling uniform dyeing of fabrics and papers.
  • Lightfast Pigment Precursor: The aromatic naphthalene backbone provides stability against light and heat, producing pigments with excellent fastness properties.
  • Deep Shade Dyeing: The stable aromatic structure ensures vibrant, long-lasting colors that resist fading during washing or exposure to sunlight.
  • Printing Paste Ingredient: High solubility supports even dispersion in textile printing formulations for precise, sharp patterns.

2. Pulp & Paper Solutions

  • Direct Paper Dyeing: Easily binds to cellulose fibers in paper pulp, producing bright and uniform coloration.
  • Optical Brightener Precursor: The aromatic sulfonated structure serves as a base for synthesizing compounds that increase paper whiteness.


 

Specifications

ASSAY ≥ 98.0%
Appearance Light beige to brown crystalline powder
Odor Odorless
Boiling Point Not applicable (decomposes)
Melting Point > 300 °C (decomposes)
Density Freely soluble in water
Solubility Freely soluble in water; slightly soluble in ethanol
Viscosity Not applicable
Flash Point Not flammable

Hazard Symbols

Acute Toxicity
Irritants/Sensitisers/Other Hazards

FAQs

1. What is the current price of Sodium naphthionate in India?
The price of Sodium naphthionate can vary based on factors such as purity, quantity, etc. For the most accurate and competitive pricing, please contact us at +91.6301 00 6301 directly for a customized quote tailored to your needs.

2. Where can I buy Sodium naphthionate in India?
You can purchase Sodium naphthionate from MULTICHEM, a leading exporter with a reputation for quality and reliability. We provide convenient options for bulk orders and direct shipments to global markets. For more details on how to place an order, please visit our website or contact our sales team.

3. What is the minimum order quantity (MOQ) for Sodium naphthionate?
Our minimum order quantity (MOQ) for Sodium naphthionate is designed to cater to both small-scale and large-scale needs. The MOQ depends on the packing size of the product which could range from 25 kg to 200 kg.

4. How can I ensure the quality of Sodium naphthionate supplied by Multichem?
We adhere to stringent quality control processes to ensure that our products meet the highest standards of purity and effectiveness. They undergo rigorous testing and quality checks to guarantee that they comply with industry specifications. We provide a Certificate of Analysis (CoA) with every shipment to ensure transparency and quality assurance.