Description

Sulfosuccinic Acid CAS NO 5138-18-1 is a versatile organosulfur compound featuring both sulfonic and carboxylic acid functional groups, making it a valuable intermediate for synthesis. Its bifunctional nature allows for the creation of surfactants, dispersants, and specialty polymers with enhanced performance characteristics. This chemical is essential for manufacturers in the personal care, textile, coatings, and industrial cleaning sectors seeking to develop high-performance, anionic formulations.

Application

• Surfactant & Detergent Intermediate: A key raw material for synthesizing sulfosuccinate esters (e.g., dioctyl sulfosuccinate sodium salt), which are high-performance, mild anionic surfactants used in personal care products, industrial cleaners, and emulsion polymerization.
• Dispersing Agent Precursor: Used to manufacture dispersants for pigments, dyes, and fillers in water-based paints, inks, and coating formulations, improving stability and color development.
• Polymer Modification: Serves as a monomer or cross-linking agent to introduce sulfonate groups into polymer chains, enhancing hydrophilicity, antistatic properties, and adhesion in specialty resins and films.
• Textile & Leather Processing: Employed in the production of wetting agents, leveling agents, and dyeing assistants for textiles and leather, ensuring uniform dye uptake and processing efficiency.
• Oilfield Chemicals: Acts as an intermediate for formulating demulsifiers and corrosion inhibitors used in crude oil extraction and refining processes.
• Electroplating Additives: Utilized in the synthesis of brighteners and leveling agents for electroplating baths to improve the quality and uniformity of metal deposits.

Basic Information

Product Name	Sulfosuccinic Acid
CAS No.	5138-18-1
Molecular Formula	C4H6O7S
Molecular Weight	198.15 g/mol
Synonyms	2-Sulfobutanedioic Acid; 2-Sulfosuccinic Acid; Sulfanedicarboxylic Acid; 1,2-Dicarboxyethanesulfonic Acid; Butanedioic Acid, 2-Sulfo-; NSC 401123; Succinic Acid, Sulfo-
EINECS	225-889-6

Quality Control

Our Sulfosuccinic Acid is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure it meets precise chemical and physical specifications. A Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment to guarantee traceability and compliance with your technical requirements.

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); the container must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product quality and handling properties.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (Titration)	≥ 98.0 %
Water Content (KF)	≤ 2.0 %
Melting Point	Contact for details
Heavy Metals (as Pb)	< 10 ppm

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