Description

4-Sulfophthalic Acid Triammonium Salt is a versatile, water-soluble organic salt derived from phthalic acid. This compound is valued for its role as a key intermediate and functional additive in advanced material synthesis and specialty chemical formulations. It is primarily sought by manufacturers in the polymer, textile, and analytical reagent industries for its unique sulfonated structure and ionic properties.

Application

• As a monomer or co-monomer in the synthesis of specialty polyimides and polyamides to impart solubility or ionic character.
• As a functional additive or dye intermediate in the textile industry.
• In the formulation of analytical reagents and buffer solutions for laboratory use.
• As a potential corrosion inhibitor or scale control agent in industrial water treatment systems.
• In research and development for organic synthesis and material science applications.
• As a component in the production of specialty surfactants or dispersants.

Basic Information

Product Name	4-Sulfophthalic Acid Triammonium Salt
CAS No.	22411-24-1
Molecular Formula	C8H15N3O7S
Molecular Weight	297.29 g/mol
Synonyms	Triammonium 4-Sulfophthalate; 4-Sulfophthalic Acid Ammonium Salt; Ammonium 4-Sulfophthalate; 1,2-Benzenedicarboxylic Acid, 4-Sulfo-, Triammonium Salt; Phthalic-4-sulfonic Acid Triammonium Salt; 4-Sulfobenzoic-1,2-dicarboxylic Acid Triammonium Salt
EINECS	Contact for details

Quality Control

Our 4-Sulfophthalic Acid Triammonium Salt is produced under a stringent quality management system. Each batch undergoes comprehensive analytical testing to ensure consistent purity and performance. A detailed Certificate of Analysis (COA) documenting identity, assay, and impurity profiles is provided with every shipment to guarantee compliance with your specifications.

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). Due to its hygroscopic nature, minimize exposure to atmospheric humidity during handling and keep the container tightly sealed when not in use.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 2.0%
pH (5% Solution)	6.0 - 8.0
Heavy Metals (as Pb)	≤ 20 ppm

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