Description

2-Hydroxyethylammonium Hydrogen Sulphite is an organic ammonium salt of sulfurous acid, known for its role as a versatile intermediate and additive. This compound is valued for its ability to act as a reducing agent and a source of sulfite ions in various chemical processes. It is primarily utilized in industrial applications such as textile processing, chemical synthesis, and water treatment, where its specific reactivity profile is essential.

Application

• Textile Processing: Used as a reducing agent and bleach stabilizer in dyeing and printing operations.
• Chemical Synthesis: Serves as a key intermediate in the production of specialty chemicals and pharmaceuticals.
• Water Treatment: Acts as an oxygen scavenger and dechlorination agent in boiler feed water and industrial water systems.
• Pulp & Paper Industry: Employed in bleaching processes and as a buffering agent.
• Photographic Chemicals: Functions as a component in developing and fixing solutions.
• Leather Tanning: Used in the deliming and pickling stages of leather production.
• Oilfield Chemicals: Applied as a corrosion inhibitor and oxygen scavenger in drilling and production fluids.

Basic Information

Product Name	2-Hydroxyethylammonium Hydrogen Sulphite
CAS No.	13427-63-9
Molecular Formula	C₂H₉NO₄S
Molecular Weight	143.16 g/mol
Synonyms	Ethanolammonium hydrogen sulfite; Monoethanolamine sulfite; 2-Aminoethanol hydrogen sulfite; Ethanolamine bisulfite; MEA sulfite; 2-Hydroxyethylamine sulfonate; Bisulfite adduct of monoethanolamine; Aminoethyl hydrogen sulfite
EINECS	236-519-5

Quality Control

Our 2-Hydroxyethylammonium Hydrogen Sulphite 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. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profile, and physical characteristics is provided with every shipment to guarantee traceability and compliance.

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 after opening to prevent absorption of atmospheric moisture, which can affect product quality and stability.

Specification

Item	Specification
Appearance	White to off-white crystalline solid
Identification (IR)	Conforms
Assay (Titration)	≥ 98.0 %
Water Content (KF)	≤ 2.0 %
pH (10% solution)	3.5 - 5.5
Heavy Metals (as Pb)	≤ 10 ppm

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