Description

1,3,6-Naphthalene Trisulfonic Acid is a key organic intermediate and sulfonating agent characterized by its high acidity and functional versatility. This compound is valued for its ability to introduce sulfonic acid groups into other molecules, significantly enhancing their water solubility and reactivity. It is primarily utilized by manufacturers in the dye, pigment, and specialty chemical industries for synthesizing intermediates, optical brighteners, and surfactants.

Application

• Dye and Pigment Intermediate: A crucial building block for the synthesis of acid dyes, reactive dyes, and fluorescent whitening agents (optical brighteners).
• Surfactant Synthesis: Used in the production of specialized anionic surfactants and dispersants for industrial and textile applications.
• Chemical Synthesis: Acts as a strong sulfonating agent and catalyst in various organic reactions to modify solubility and ionic character.
• Pharmaceutical Intermediates: Employed in the research and development of certain sulfonated drug candidates and diagnostic agents.
• Electroplating Additives: Functions as a brightening agent and complexant in specific electroplating bath formulations.
• Research & Development: Serves as a standard and reagent in academic and industrial R&D for studying sulfonation chemistry.

Basic Information

Product Name	1,3,6-Naphthalene Trisulfonic Acid
CAS No.	93041-41-9
Molecular Formula	C₁₀H₈O₉S₃
Molecular Weight	400.36 g/mol
Synonyms	Naphthalene-1,3,6-trisulfonic Acid; 1,3,6-NTSA; Trisodium 1,3,6-naphthalenetrisulfonate (salt form); Naphthalene Trisulfonic Acid; NTS Acid; 1-Naphthol-3,6,8-trisulfonic Acid (related derivative); Naphthalenetrisulfonic Acid; H-Acid related intermediate
EINECS	Contact for details

Quality Control

Our production of 1,3,6-Naphthalene Trisulfonic Acid adheres to stringent quality management protocols. Each batch is analyzed to ensure consistent purity and meets the specifications required for high-performance industrial synthesis. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profile, and physical characteristics is provided with every shipment to guarantee supply reliability and product traceability.

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 material is hygroscopic (moisture-sensitive) and should be kept in a dry environment to prevent caking and hydrolysis. Keep away from strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	Off-white to light beige powder or crystals
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 5.0%
Sulfate Ash	≤ 0.5%
pH (1% Solution)	Strongly acidic

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