Description

Disodium Mercaptomethanesulphonate is a versatile organosulfur compound widely used as a key intermediate and additive in industrial synthesis. Its primary value lies in its ability to act as a chain transfer agent and a source of sulfonate groups, which is critical for controlling polymer molecular weight and enhancing solubility. This product is essential for manufacturers in the polymer, textile, and specialty chemical industries seeking to improve process efficiency and product performance.

Application

• As a chain transfer agent (CTA) in the production of acrylic polymers and emulsion polymers.
• As a key intermediate in the synthesis of specialty surfactants and dispersants.
• In the textile industry as a component in dyeing auxiliaries and finishing agents.
• As a corrosion inhibitor and additive in water treatment formulations.
• In the manufacture of pharmaceutical intermediates and fine chemicals.
• As a modifying agent for ion-exchange resins and functional materials.

Basic Information

Product Name	Disodium Mercaptomethanesulphonate
CAS No.	67859-66-9
Molecular Formula	C2H4Na2O3S2
Molecular Weight	202.16 g/mol
Synonyms	Disodium 2-Mercaptomethanesulfonate; Sodium 2-Mercaptomethanesulfonate; 2-Mercaptomethanesulfonic Acid Disodium Salt; Disodium Thioglycolate Sulfonate; Mercaptomethanesulfonic Acid Disodium Salt; Disodium Sulfomethyl Mercaptan; SMS (abbreviation); Contact for details on additional trade names.
EINECS	Contact for details

Quality Control

Our Disodium Mercaptomethanesulphonate is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets precise specifications for purity, identity, and performance. Certificates of Analysis (COA) documenting key parameters are available upon request to support your quality assurance protocols.

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 (moisture-sensitive) nature, the container must be kept tightly sealed to prevent absorption of atmospheric moisture. For long-term storage, consider using an inert atmosphere to minimize oxidation.

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.