Description

1,4,5-Naphthalenetrisulfonic Acid is a high-purity, multi-sulfonated aromatic compound that serves as a critical intermediate and functional additive in advanced chemical synthesis. Its unique structure, featuring three sulfonic acid groups, provides exceptional water solubility and strong acidity, making it valuable for creating dyes, catalysts, and specialty polymers. This product is essential for manufacturers and R&D laboratories in the fine chemicals, textile, and electronics industries seeking reliable, high-performance sulfonation agents.

Application

• Dye and Pigment Intermediate: A key precursor for synthesizing acid dyes, reactive dyes, and fluorescent whitening agents due to its sulfonic acid groups which enhance water solubility and fiber affinity.
• Catalyst and Co-catalyst: Used in organic synthesis reactions where a strong Brønsted acid catalyst is required, particularly in aqueous or polar solvent systems.
• Electroplating and Surface Treatment Additive: Functions as a brightening agent and leveler in electroplating baths to improve the quality and uniformity of metal deposits.
• Polymer Modification: Employed to introduce sulfonate groups into polymers, enhancing their hydrophilicity, ion-exchange capacity, or dispersion properties for applications like membranes or dispersants.
• Chemical Research & Development: Serves as a building block in pharmaceutical and agrochemical research for creating novel sulfonated compounds.
• Analytical Reagent: Can be used in analytical chemistry as a standard or reagent in specific titration or complexometric methods.

Basic Information

Product Name	1,4,5-Naphthalenetrisulfonic Acid
CAS No.	60913-37-3
Molecular Formula	C10H8O9S3
Molecular Weight	376.36 g/mol
Synonyms	Naphthalene-1,4,5-trisulfonic Acid; 1,4,5-NTSA; Naphthalene-1,4,5-trisulphonic Acid; 1-Naphthalenesulfonic acid, 4,5-bis(sulfo)-; Trisulfonaphthalene; Naphthalenetrisulfonate; 1,4,5-Trisulfonaphthalene; Naphthalene-1,4,5-trisulfonate
EINECS	Contact for details

Quality Control

Our 1,4,5-Naphthalenetrisulfonic Acid is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets precise specifications for purity, identity, and consistency. We provide comprehensive Certificates of Analysis (COA) with every shipment, detailing key parameters such as assay, sulfonic acid content, and impurity profiles. Our quality commitment ensures reliability for your most demanding industrial and research applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and a strong acid; ensure the container is sealed immediately after use to prevent absorption of atmospheric moisture and contamination. Keep away from incompatible materials such as strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 2.0%
Sulfonic Acid Content (Titration)	Contact for details
Heavy Metals (as Pb)	≤ 20 ppm
Residue on Ignition	≤ 0.1%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.