Description

2,2'-Thiodiethanol is a versatile sulfur-containing diol with significant industrial utility. Its bifunctional structure, featuring both thioether and hydroxyl groups, makes it a valuable intermediate for synthesizing specialized polymers, additives, and fine chemicals. This compound is essential for manufacturers in the polymer, textile, and specialty chemical sectors seeking to enhance material properties or develop novel formulations.

Application

• Polymer Industry: As a chain extender or monomer in the production of polyurethanes and polyesters, imparting flexibility and specific chemical resistance.
• Textile Chemicals: A key intermediate for manufacturing fiber lubricants, softening agents, and dyeing auxiliaries.
• Lubricant Additives: Used in the synthesis of extreme pressure (EP) additives and corrosion inhibitors for industrial lubricants and metalworking fluids.
• Pharmaceutical Intermediates: Serves as a building block in the synthesis of certain active pharmaceutical ingredients (APIs) and diagnostic agents.
• Photographic Chemicals: Employed in the formulation of certain developers and stabilizers.
• Crosslinking Agent: For epoxy resins and other thermosetting polymers to modify cure characteristics and final properties.
• Gas Treating: As a component in formulations for the removal of hydrogen sulfide and other acidic gases.

Basic Information

Product Name	2,2'-Thiodiethanol
CAS No.	111-48-8
Molecular Formula	C4H10O2S
Molecular Weight	122.19 g/mol
Synonyms	Thiodiglycol; Bis(2-hydroxyethyl) sulfide; 2,2'-Thiobisethanol; Di(2-hydroxyethyl) sulfide; Ethanol, 2,2'-thiodi-; TDE; 2-Hydroxyethyl sulfide; Glycol, thiodi-; NSC 2090; β,β'-Dihydroxydiethyl sulfide
EINECS	203-874-3

Quality Control

Our 2,2'-Thiodiethanol is produced under a stringent quality management system. Each batch undergoes comprehensive analytical testing, including assay, identity confirmation, and impurity profiling, to ensure it meets exacting specifications for industrial and specialty applications. A Certificate of Analysis (COA) detailing purity, physical properties, and test results is provided with every shipment to guarantee traceability and consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials such as strong oxidizing agents. Recommended storage temperature is between 15°C and 25°C. The product is hygroscopic; keep containers tightly sealed to minimize moisture absorption.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Refractive Index (20°C)	1.518 - 1.522
Density (20°C)	1.180 - 1.190 g/mL

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