Description

Sodium 3-Mercaptopropanesulphonate is a versatile organosulfur compound with significant industrial utility. Its unique structure, featuring both a thiol (mercapto) and a sulfonate group, makes it a valuable intermediate and additive in various synthesis and formulation processes. This product is essential for manufacturers in sectors such as polymer production, electroplating, and specialty chemical synthesis who require a reliable source of high-purity sulfonate-based reagents.

Application

• Polymer Industry: Acts as a chain transfer agent or modifier in the production of specialty polymers, including acrylics and acrylamides, to control molecular weight and introduce functional groups.
• Electroplating & Surface Treatment: Used as a brightening agent and stabilizer in electroplating baths for metals like copper and zinc, improving deposit quality and bath stability.
• Pharmaceutical Intermediates: Serves as a key building block in the synthesis of certain active pharmaceutical ingredients (APIs) and diagnostic agents.
• Photographic Chemicals: Employed in the formulation of photographic developers and other sensitizing solutions.
• Textile & Leather Processing: Functions as an auxiliary agent in dyeing and tanning processes to improve fixation and quality.
• Water Treatment: Can be utilized as a scale inhibitor or dispersant in certain industrial water systems.
• Research & Development: A valuable reagent for organic synthesis and material science research in academic and industrial laboratories.

Basic Information

Product Name	Sodium 3-Mercaptopropanesulphonate
CAS No.	17636-10-1
Molecular Formula	C3H7NaO3S2
Molecular Weight	178.20 g/mol
Synonyms	3-Mercapto-1-propanesulfonic acid sodium salt; Sodium 3-mercapto-1-propanesulfonate; SMPS; 3-MPS; Mercaptopropanesulfonic acid sodium salt; Thioglycolic acid sulfonate sodium salt; Sodium mercaptopropane sulfonate; 1-Propanesulfonic acid, 3-mercapto-, sodium salt (1:1)
EINECS	241-608-6

Quality Control

Our Sodium 3-Mercaptopropanesulphonate is produced under a stringent quality management system. Each batch undergoes rigorous analytical testing to ensure it meets precise specifications for purity, identity, and performance. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profiles, and physical characteristics is provided with every shipment to guarantee traceability and consistency for your critical processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at room temperature (15-25°C). This product is easily oxidized (store under inert atmosphere) and is moisture-sensitive. Keep away from strong oxidizing agents, strong acids, and strong bases. For long-term storage, consider maintaining under an inert gas such as nitrogen.

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.